Large Truck Crash Causation Study Codebook June 2006 US Department of Transportation TABLE OF CONTENTS Introduction .....................................................................................................................................1 Case selection and sampling weights..............................................................................................1 Structure of data files.......................................................................................................................2 Sources of Data ...............................................................................................................................3 Documentation provided by codebook.............................................................................................4 Airbags Data Set.................................................................................................................5 Brakes Data Set................................................................................................................12 CargoShiftAssessments Data Set.....................................................................................18 CDCCrush Data Set..........................................................................................................26 Crash Data Set..................................................................................................................40 CrashAssessment Data Set..............................................................................................49 CrashDiscussion Data Set................................................................................................58 DMVViolation Data Set .....................................................................................................59 DriverAssessment Data Set..............................................................................................66 DriverDecisionAggression Data Set..................................................................................84 DriverDrugs Data Set........................................................................................................94 DriverHealth Data Set.......................................................................................................96 DriverRecognitionDistraction Data Set ...........................................................................104 DriverSleep Data Set ......................................................................................................112 Environment Data Set.....................................................................................................125 Events Data Set..............................................................................................................138 FactorAssessment Data Set...........................................................................................144 GeneralVehicle Data Set ................................................................................................164 HazMat Data Set.............................................................................................................196 HazMatinsp Data Set......................................................................................................198 Injuries Data Set..............................................................................................................200 JackknifeAssessments Data Set.....................................................................................209 MCMISdriverData Data Set ............................................................................................214 MCMISviolation Data Set................................................................................................218 NonMotorists Data Set....................................................................................................221 Occupants Data Set........................................................................................................230 Overview Data Set..........................................................................................................256 PARViolations Data Set..................................................................................................272 SaferAuthorityStatus Data Set........................................................................................275 SaferCarrier Data Set......................................................................................................276 SaferCrashSummary Data Set .......................................................................................284 SaferDriverCrashReport Data Set ..................................................................................287 SaferDriverInspection Data Set ......................................................................................297 SaferDriverViolation Data Set.........................................................................................303 SaferInspectionsSummary Data Set...............................................................................305 SaferInsurance Data Set.................................................................................................314 SaferReview Data Set.....................................................................................................317 SafeStat Data Set ...........................................................................................................320 TruckExterior Data Set....................................................................................................326 TruckInspection Data Set................................................................................................337 TruckUnits Data Set........................................................................................................339 VehicleEvents Data Set..................................................................................................354 LTCCS Codebook • June2006 Table of Contents • i VehicleExterior Data Set.................................................................................................360 Generalized Estimated Sampling Errors......................................................................................375 Index............................................................................................................................................379 LTCCS Codebook • June2006 Table of Contents • ii Introduction This report documents the September 30, 2005, version of the Large Truck Crash Causation Study (LTCCS) data set. The U.S. Department of Transportation’s (DOT) Federal Motor Carrier Safety Administration (FMCSA) and National Highway Traffic Safety Administration (NHTSA) conducted a multiyear, nationwide study of factors that contribute to truck crashes. The report summarizes all the information in each of the 43 data files that comprise the LTCCS data set. Case selection and sampling weights The LTCCS was conducted at 24 data collection sites in 17 States by researchers from NHTSA’s National Automotive Sampling System (NASS) and State truck inspectors. Data were collected on crashes from 2001 through 2003. Crashes were sampled for the LTCCS in two stages. The sampling structure used the existing structure of NHTSA’s National Automotive Sampling System Crashworthiness Data System (NASS CDS). That is, cases were sampled from sites that are part of the NASS CDS system. The first stage of sampling is the selection of primary sampling units (PSUs), which are geographic areas. The PSUs were sampled from 12 “strata,” which were larger geographic areas classified by four geographic regions (northeast, midwest, south, and west) and three categories of population density (central city, large county, and group of counties). Two PSUs were sampled from each of the 12 strata, to make 24 sampling sites. The second stage of sampling is to select crashes occurring within each sampled PSU. Crashes were eligible for sampling if they met the following two criteria: 1. The crash involved at least one large truck, defined as a truck with a gross vehicle weight rating (GVWR) of 10,001 pounds or more. 2. The crash involved at least one fatality, incapacitating, or non-incapacitating but evident injury. Injuries were classified using the KABCOU injury severity scale. Table 1 shows the available levels. In that scale, crashes eligible for sampling included a “K,” “A,” or “B” injury. Table 1 KABCOU Injury Scale Code Definition K Fatal injury A Incapacitating Injury B Non-Incapacitating Injury C Possible Injury O No Injury U Unknown In each data file, the variables PSU and PSUStrata identify the PSU and PSU selection stratum respectively, and the variable RATWeight contains the correct case weight to produce nationally representative estimates. The Large Truck Crash Causation Study Analytical Users Manual provides a complete description of the sample design and calculation of sampling weights. The data files provided here include both cases with valid, nonzero weights and cases with zero weights. The cases with zero weights either are from the pilot phase of the project or are cases that were sampled but later found to not meet the selection criteria. They are included for clinical analysis or as anecdotal data. They should not be included in estimates of nationally-representative results. In most software systems that support the use of a weighting variable, these cases will be dropped from a weighted (nationally-representative) analysis since the weight variable, RATWeight, is set to zero for the nonsample cases. LTCCS Codebook Introduction • 1 Structure of data files The LTCCS data is supplied in 43 data sets. The data were originally collected using a complex relational data system, and then formatted into analysis data sets which preserve many aspects of the original relational design. Table 2 identifies the data files, the level at which the data in each file were collected, and the variable names that can be used to uniquely identify a record in each data file. The “level” at which the data are recorded simply corresponds to the entity each record in the particular data file pertains to. Some files have one record per crash, one record per vehicle, or one record per driver. Other data files contain information at a more detailed level and may have multiple records per vehicle. For example, the Brakes data file includes one record for each axle on the truck combination. Since truck combinations sampled for the LTCCS included up to 11 axles, some trucks have eleven records in the Brakes file. Table 2 LTCCS Data Files Data set name # records # records with nonzero weights Level Unique record identifier AIRBAGS 857 797 Airbag CaseID, VehicleNumber, AirbagNumber BRAKES 5,283 4,798 Brake CaseID, VehicleNumber, and Axle CRASH 1,070 963 Crash CaseID DRIVERDRUGS 1,458 1,330 Drug CaseID, VehicleNumber and DrugName EVENTS 2,777 2,535 Event CaseID and EventSequence HAZMAT 57 51 Hazardous material CaseID, VehicleNumber and Material HAZMATINSP 4,107 3,517 Hazardous material inspection CaseID, VehicleNumber and HMIInspection CDCCRUSH 3,973 3,630 Impact CaseID, VehicleNumber, EventNumber and ImpactNumber or CaseID, VehicleNumber, EventNumber and PositionNumber INJURIES 8,937 8,295 Injury CaseID, VehicleNumber, OccupantNumber, and InjuryNumber SAFERDRIVERINSPECTION 795 778 Inspection CaseID, VehicleNumber, and SDIDate NONMOTORISTS 53 41 Nonmotorist CaseID and NonMotoristNumber OCCUPANTS 3,014 2,761 Occupant CaseID, VehicleNumber and OccupantNumber VEHICLEEXTERIOR 921 838 Passenger vehicle CaseID and VehicleNumber SAFERDRIVERCRASH-REPORT 215 213 Previous crash CaseID, VehicleNumber, and SCDDate SAFERREVIEW 1,581 1,480 Review CaseID, VehicleNumber and ReviewDate TRUCKEXTERIOR 1,241 1,123 Truck CaseID and VehicleNumber TRUCKUNITS 2,179 1,972 Truck unit CaseID, VehicleNumber and TUNPosition CARGOSHIFTASSESSMENTS 2,284 2,078 Vehicle CaseID and VehicleNumber CRASHASSESSMENT 2,284 2,078 Vehicle CaseID and VehicleNumber CRASHDISCUSSION 2,284 2,078 Vehicle CaseID and VehicleNumber ENVIRONMENT 2,284 2,078 Vehicle CaseID and VehicleNumber FACTORASSESSMENT 2,284 2,078 Vehicle CaseID and VehicleNumber GENERALVEHICLE 2,284 2,078 Vehicle CaseID and VehicleNumber JACKKNIFEASSESSMENTS 2,284 2,078 Vehicle CaseID and VehicleNumber OVERVIEW 2,284 2,078 Vehicle CaseID and VehicleNumber LTCCS Codebook Introduction • 2 Data set name # records # records with nonzero weights Level Unique record identifier VEHICLEEVENTS 2,284 2,078 Vehicle CaseID and VehicleNumber DRIVERASSESSMENT 2,284 2,078 Vehicle/Driver CaseID and VehicleNumber DRIVERDECISION-AGGRESSION 2,284 2,078 Vehicle/Driver CaseID and VehicleNumber DRIVERHEALTH 2,284 2,078 Vehicle/Driver CaseID and VehicleNumber DRIVERRECOGNITION- DISTRACTION 2,284 2,078 Vehicle/Driver CaseID and VehicleNumber DRIVERSLEEP 2,284 2,078 Vehicle/Driver CaseID and VehicleNumber MCMISDRIVERDATA 1,016 927 Vehicle/Driver CaseID and VehicleNumber SAFERAUTHORITYSTATUS 605 560 Vehicle/Driver CaseID and VehicleNumber SAFERCARRIER 796 742 Vehicle/Driver CaseID and VehicleNumber SAFERINSPECTIONS-SUMMARY 796 742 Vehicle/Driver CaseID and VehicleNumber SAFERINSURANCE 605 560 Vehicle/Driver CaseID and VehicleNumber SAFESTAT 1,882 1,787 Vehicle/Driver CaseID and VehicleNumber DMVVIOLATION 4,712 4,277 Violation CaseID, VehicleNumber, and ViolationNumber MCMISVIOLATION 4,309 3,907 Violation CaseID, VehicleNumber and Code PARVIOLATIONS 1,945 1,816 Violation CaseID, VehicleNumber and PARViolationCode SAFERDRIVERVIOLATION 643 643 Violation CaseID and VehicleNumber* TRUCKINSPECTION 3,241 3,008 Violation CaseID, VehicleNumber, TINPosition and TINViolationCode SAFERCRASHSUMMARY 2,784 2,596 Year CaseID, VehicleNumber and SCSYear * One record per violation but no unique record identifier. The identifier variables can be used to link the data sets together to permit analyses that use information from more than one data set. A unique CaseID variable is assigned to each crash. Within each crash, each vehicle is assigned a unique value, stored in the VehicleNumber variable. A unique OccupantNumber is assigned to each occupant of a specific vehicle. Thus, the combination of CaseID, VehicleNumber, and OccupantNumber uniquely identifies a specific individual. To link information on drivers in the DriverAssessment file to vehicle characteristics in the GeneralVehicle file, one would join records that match on CaseID and VehicleNumber. Sources of Data The information in most of the data files was collected by NHTSA researchers and State truck inspectors at the crash scene and in subsequent investigation and assessment. Data in some of the data files was linked in from administrative data sets. Data in two data sets, MCMISDriverData and MCMISDriverViolation were linked in from the Motor Carrier Management Information System (MCMIS) Crash and MCMIS Inspection files, respectively. The MCMIS Crash file contains records of crashes reported by the States. All crashes must be reported that include either a truck with a GVWR over 10,000 pounds or a gross combination weight rating over 10,000 pounds, or a bus designed to transport more than eight people including the driver, or a vehicle displaying a hazardous materials placard, and the crash includes either a fatality, a person injured and transported for immediate medical attention, or a vehicle towed due to disabling damage. All such crashes must be reported by the States to the MCMIS Crash file, though it is known that during the data collection phase of the LTCCS, a significant number of qualifying crashes were not reported. The MCMIS Inspection file includes records of all vehicle inspections conducted by FMCSA, including roadside inspections, compliance reviews, and other inspections. LTCCS Codebook Introduction • 3 Data in ten data sets, all of which are named with the prefix SAFER-, are linked in from the FMCSA’s Safety and Fitness Electronic Records System database. The SAFER system is used to evaluate the fitness of motor carriers subject to FMCSA regulation and contains information on the carrier’s fitness status, historical information on previous crashes, inspections, violations, and previous safety reviews of the carrier. The data files contain only records of cases that could be matched to records in the SAFER system. Information about prior crashes and violations can also be found in the GeneralVehicle data file and the DMVViolation data file. Documentation provided by codebook This codebook provides a complete listing of every variable and every code level in each data file (except for the record identifier variables that are repeated in each data file). For each variable in a data file, the codebook provides the distribution of records, the code values stored in the data file, the label associated with each code value, the data storage type, the storage length of the variable, and the format entry, if any. The codebook documents all records in the file. The records are not weighted but are raw counts of the number of records. The data files include both the pilot and nonsample records, which have a zero for the RATWeight variable, and case records, which have a valid RATWeight greater than zero. Figure 1 Codebook Listing Example Figure 1 provides an example of an entry for the BrakeType variable in the Brakes data file. 1. The name of the variable in the SAS file. 2. The name of the format associated with the variable. This format is stored in the FORMATS.SASB7CAT file that is supplied along with the SAS data files. Not all variables have associated formats in the FORMATS.SASB7CAT file. 3. The storage type of the variable. Data are stored either as Numeric or Char (character) data. 4. The storage length in bytes for the variable. Storage of numeric variables range in length from three to eight bytes. Character variable storage lengths vary between one and 21,000, which is used to store the researcher’s case narrative in the CrashDiscussion data file. 5. The frequency distribution (N) and percentage distribution (Prcnt) of the code levels recorded for each variable. 6. The code value stored in the data file. This is the actual value stored. In the case of Char variables that do not have an associated format, the codebook shows asterisks (*) for the code that is stored, and the stored character string is shown as the Label. 7. The label for each code value. LTCCS Codebook Introduction • 4 Codebook - Airbags Data Set Airbags Data Set The Airbags data set contains all the airbag-related information for each of the vehicles involved in the crash. This material is provided as one record per airbag. The Airbags data set contains the variables CaseID, PSU, PSUStrat, RATWeight, VehicleNumber and AirbagNumber. AirbagNumber is assigned to each airbag in the vehicle. Each record is uniquely identified by CaseID, VehicleNumber and AirbagNumber. CaseID and VehicleNumber should be used to merge the Airbag data set with vehicle level data sets. CaseID, VehicleNumber and AIROccupantNumber should be used to merge the Airbags data set with the Occupant data set. Format Type Length Variable Name BEST8 Numeric 8 AirbagNumber Definition: Identifies the number of the airbag in the vehicle. N Prcnt Code Label 586 68.4 1 1 227 26.5 2 2 23 2.7 3 3 14 1.6 4 4 2 0.2 5 5 2 0.2 6 6 1 0.1 7 7 1 0.1 8 8 1 0.1 9 9 Format Type Length Variable Name OT54F Numeric 8 OccupantNumber Definition: Represents the occupant associated with this air bag, identified by their occupant number. N Prcnt Code Label 648 75.6 1 1 133 15.5 2 2 76 8.9 99 Unknown Format Type Length Variable Name OT60F Numeric 8 SeatRow1 Definition: Identifies an air bag deployment that occurred in the first row of seats in the vehicle. N Prcnt Code Label 855 99.8 1 First row 2 0.2 9 Unknown LTCCS Codebook Airbags Data Set • 5 Codebook - Airbags Data Set Variable Name Format Type Length SeatLocation1 OT61F Numeric 8 Definition: Identifies the seat location in the first row of the vehicle where an air bag deployment occurred. N Prcnt Code Label 648 75.6 1 First location 207 24.2 3 Third location 2 0.2 9 Unknown Variable Name Format Type Length OT60F Numeric 8 SeatRow2 Definition: Identifies an air bag deployment that occurred in the second row of seats in the vehicle. N Prcnt Code Label 6 0.7 1 First row 851 99.3 9 Unknown Variable Name Format Type Length OT61F Numeric 8 SeatLocation2 Definition: Identifies the seat location in the second row of the vehicle where an air bag deployment occurred. N Prcnt Code Label 5 0.6 1 First location 1 0.1 3 Third location 851 99.3 9 Unknown Variable Name Format Type Length ML92F Numeric 8 AirbagLocation Definition: Identifies the location of a particular air bag. N Prcnt Code Label 578 67.4 1 Steering Wheel Hub 116 13.5 2 Top Instrument Panel 74 8.6 3 Mid Instrument Panel 2 0.2 4 Bottom Instrument Panel 33 3.9 5 Seat Back 9 1.1 6 Door 5 0.6 7 Roof Side Rail 1 0.1 98 Other 39 4.6 99 Unknown LTCCS Codebook Airbags Data Set • 6 Codebook - Airbags Data Set Variable Name Format Type Length AirbagStatus ML91F Numeric 8 Definition: Documents the availability of the air bag. N Prcnt Code Label 782 91.2 1 Airbag Available 1 0.1 3 Airbag not reinstalled 74 8.6 9 Unknown if airbag available for this crash Variable Name Format Type Length ML211F Numeric 8 AirbagType Definition: Describes the type of air bag present. N Prcnt Code Label 311 36.3 1 Orig. man. installed sys. 2 0.2 3 Replacement Air Bag 520 60.7 4 Unknown Type 1 0.1 8 No air bag available 23 2.7 9 Unknown Variable Name Format Type Length ML291F Numeric 8 Depowered Definition: Indicates whether or not the vehicle was equipped with a redesigned air bag for this location. Redesigned air bags include second-generation air bags, next-generation air bags, Air Bag II, advanced air bags, and other innovative systems that have been developed to make use of air bag protection technology. N Prcnt Code Label 373 43.5 0 Not Redesigned 381 44.5 1 Redesigned 24 2.8 2 Advanced (specify) 1 0.1 70 No air bag available for this crash 78 9.1 99 Unknown Format Type Length Variable Name ML212F Numeric 8 Deployment Definition: Describes when in the crash sequence the air bag deployed. N Prcnt Code Label 383 44.7 1 Deployed during crash (as a result of impact) 4 0.5 3 Deployed, details unknown LTCCS Codebook Airbags Data Set • 7 Codebook - Airbags Data Set N Prcnt Code Label 2 0.2 4 Deployed as a result of a non-collision event during accident 425 49.6 7 Not deployed 1 0.1 70 No airbag functional for this crash 42 4.9 99 Unknown if deployed Variable Name Format Type Length ML160F Numeric 8 AirbagFailure Definition: Documents whether or not something abnormal has occurred to the air bag system. It may not necessarily mean that the air bag system was defective. N Prcnt Code Label 746 87.0 0 No 7 0.8 1 Yes (specify) 1 0.1 70 Airbag not available 9 1.1 79 Unknown if available 94 11.0 99 Unknown Variable Name Format Type Length ML489F Numeric 8 SwitchType Definition: Describes the type of air bag cutoff switch present in the vehicle. N Prcnt Code Label 766 89.4 0 None present 14 1.6 1 Originally equipped 1 0.1 3 Switch present, type unknown 76 8.9 9 Unknown if switch present Variable Name Format Type Length ML490F Numeric 8 SwitchStatus Definition: Describes the status of the airbag cutoff switch at the time of the crash. N Prcnt Code Label 12 1.4 0 Switch On/Automatic 766 89.4 7 None present 51 6.0 8 Unknown if switch present 28 3.3 9 Switch status unknown LTCCS Codebook Airbags Data Set • 8 Codebook - Airbags Data Set Format Type Length Variable Name ML164F Numeric 8 FlapsOpen Definition: Documents whether or not the air bag properly opened at its tear points. A designated tear point is a weakened area of the flap material designed to allow the air bag easy escape from its storage area during deployment. Some air bags in the seat cushion and seat back may not have cover flaps, but will deploy through a seam that separates during the air bag deployment. N Prcnt Code Label 5 0.6 0 No 322 37.6 1 Yes 419 48.9 60 Not deployed 10 1.2 69 Unknown if deployed 1 0.1 70 No airbag available for this crash 10 1.2 79 Unknown 90 10.5 99 Unknown if flaps/seams opened at tear points Variable Name Format Type Length ML163F Numeric 8 FlapsDamaged Definition: Indicates whether or not the air bag cover flaps sustained damage during deployment. Normal separation/tearing at the designated tear points does not constitute damage. N Prcnt Code Label 316 36.9 0 No 6 0.7 1 Yes (specify) 419 48.9 60 Not deployed 10 1.2 69 Unknown if deployed 1 0.1 70 No airbag available for this crash 105 12.3 99 Unknown if airbag module cover flaps opened at tear points Variable Name Format Type Length ML158F Numeric 8 AirbagDamage Definition: Documents any damage to the air bag during the crash sequence. N Prcnt Code Label 295 34.4 0 Not Damaged 1 0.1 1 Ruptured 4 0.5 2 Cut 9 1.1 3 Torn 1 0.1 4 Punctured 4 0.5 5 Burned 2 0.2 6 Abraded 419 48.9 60 Not deployed LTCCS Codebook Airbags Data Set • 9 Codebook - Airbags Data Set N Prcnt Code Label 17 2.0 69 Unknown if deployed 1 0.1 70 No airbag available for this crash 2 0.2 88 Other damage (specify) 1 0.1 95 Damaged, details unknown 101 11.8 99 Deployed, unknown if damaged Format Type Length Variable Name ML223F Numeric 8 DamageSource Definition: Documents the source of damage to the air bag during the crash sequence. This variable is related to the variable “Was There Damage To The Air Bag?” N Prcnt Code Label 3 0.4 5 Fire in vehicle 1 0.1 6 Thermal burns 8 0.9 7 Windshield 3 0.4 8 Rescue or emergency efforts 295 34.4 50 Not Damaged 65 7.6 59 Deployed, unknown if damaged 419 48.9 60 Not deployed 17 2.0 69 Unknown if deployed 1 0.1 70 No airbag available for this crash 2 0.2 88 Other damage source (specify) 43 5.0 99 Damaged, unknown source Format Type Length Variable Name ML215F Numeric 8 PriorCrashes Definition: Documents whether the vehicle had been in any previous crashes (that may or may not have involved air bag deployment). N Prcnt Code Label 148 17.3 1 No previous crashes 6 0.7 2 Previous crash(es) without deployment(s) 1 0.1 3 One previous crash with deployment 3 0.4 8 Previous crashes, unknown deployment status 699 81.6 9 Unknown LTCCS Codebook Airbags Data Set • 10 Codebook - Airbags Data Set Variable Name Format Type Length PriorMaintenance ML165F Numeric 8 Definition: Indicates whether or not the air bag had received any maintenance or service work prior to the crash. N Prcnt Code Label 138 16.1 0 No 719 83.9 9 Unknown Variable Name Format Type Length ML162F Numeric 8 CDC Definition: Indicates the CDC’s delta V rating for the impact associated with this air bag’s deployment. N Prcnt Code Label 270 31.5 1 Highest Delta V 41 4.8 2 Second Highest Delta V 1 0.1 3 Other delta V (specify) 5 0.6 9 Unknown 413 48.2 60 Not deployed 17 2.0 69 Unknown if deployed 1 0.1 70 No airbag available for this crash 109 12.7 99 Deployed, unknown event Variable Name Format Type Length ML214F Numeric 8 ContactOther Definition: Documents whether another occupant (besides the intended occupant) contacted this particular air bag. N Prcnt Code Label 336 39.2 0 No 4 0.5 1 Yes (specify) 419 48.9 60 Not deployed 10 1.2 69 Unknown if deployed 1 0.1 70 Airbag not functional (disconnected or not reinstalled) 15 1.8 79 Unknown 72 8.4 99 Deployed, unknown if other occupant contact to airbag LTCCS Codebook Airbags Data Set • 11 Codebook - Brakes Data Set Brakes Data Set The Brakes data set contains information about the brake equipment on the vehicles. It is broken out by axle, which becomes part of the unique key of this data set. This material is provided as one record per axle for each truck involved in the crash for which brakes have been coded. The Brakes data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID, VehicleNumber, and Axle uniquely identify each record in this data set. CaseID and VehicleNumber should be used to merge the Brakes data set with vehicle level data sets. Format Type Length Variable Name BEST8 Numeric 8 Axle Definition: Identifies the axle to which the brake information is related. N Prcnt Code Label 1,186 22.4 1 1 1,186 22.4 2 2 1,032 19.5 3 3 891 16.9 4 4 791 15.0 5 5 87 1.6 6 6 49 0.9 7 7 30 0.6 8 8 15 0.3 9 9 8 0.2 10 10 8 0.2 11 11 Variable Name Format Type Length ML538F Numeric 8 BrakeType Definition: Documents the type of brake system present at a particular axle. N Prcnt Code Label 4,910 92.9 1 Air 205 3.9 2 Hydraulic 40 0.8 3 Electric 128 2.4 9 Unknown LTCCS Codebook Brakes Data Set • 12 Codebook - Brakes Data Set Format Type Length Variable Name OT4F Numeric 8 BRAPosition Definition: Identifies on which unit of the truck configuration a particular axle is located. N Prcnt Code Label 3,215 60.9 1 First Unit 1,623 30.7 2 Second Unit 120 2.3 3 Third Unit 325 6.2 9 Unknown Format Type Length Variable Name ML535F Numeric 8 ABSInstalled Definition: Indicates whether or not ABS is available at a particular axle. N Prcnt Code Label 2,537 48.0 0 No 1,588 30.1 1 Yes 1,158 21.9 99 Unknown Variable Name ABSFunctional Format ML536F Type Numeric Length 8 Definition: Indicates whether or not the ABS is functioning properly at a particular axle. N Prcnt Code Label 2,270 43.0 0 No 1,192 22.6 1 Yes 1,821 34.5 99 Unknown Variable Name Format Type Length ML537F Numeric 8 AdjustorType Definition: Indicates the type of brake adjustment system that is present at a particular axle. N Prcnt Code Label 1,616 30.6 1 Man 2,405 45.5 2 Auto 1,262 23.9 99 Unknown LTCCS Codebook Brakes Data Set • 13 Codebook - Brakes Data Set Format Type Length OT5F14.2 Numeric 8 ChamberSize Definition: Documents the size of the brake chamber for the braking system at a particular axle. N Prcnt Code Label 1 0.0 1.83 1.83 3 0.1 2.06 2.06 1 0.0 10.8 10.80 1 0.0 11.43 11.43 2 0.0 13.3 13.30 2 0.0 13.34 13.34 12 0.2 14.45 14.45 6 0.1 14.5 14.50 35 0.7 16.19 16.19 21 0.4 16.2 16.20 6 0.1 16.27 16.27 3 0.1 16.5 16.50 200 3.8 17.2 17.20 12 0.2 17.21 17.21 399 7.6 17.22 17.22 1 0.0 17.7 17.70 2 0.0 18 18.00 2 0.0 18.3 18.30 2 0.0 18.33 18.33 187 3.5 18.34 18.34 66 1.2 18.4 18.40 5 0.1 20 20.00 3 0.1 20.5 20.50 151 2.9 20.55 20.55 1,892 35.8 20.56 20.56 868 16.4 20.6 20.60 2 0.0 20.64 20.64 3 0.1 22.86 22.86 6 0.1 22.9 22.90 5 0.1 24 24.00 2 0.0 27.94 27.94 47 0.9 30 30.00 1 0.0 30.48 30.48 5 0.1 38.1 38.10 3 0.1 40.64 40.64 17 0.3 41.9 41.90 9 0.2 41.91 41.91 LTCCS Codebook Brakes Data Set • 14 Codebook - Brakes Data Set N Prcnt Code Label 10 0.2 45.7 45.70 3 0.1 45.72 45.72 2 0.0 50.8 50.80 4 0.1 60.96 60.96 18 0.3 76.2 76.20 263 5.0 8887 Not Applicable 515 9.7 9994 Not Examined 485 9.2 9999 Unknown Format Type Length Variable Name ML539F Numeric 8 ChamberType Definition: Documents the type of chamber for a braking system at a particular axle. N Prcnt Code Label 1 0.0 1 A 6-15/16 1-3/8 4 0.1 3 C 8-1/16 1-3/4 1 0.0 8 C-6 4-1/2 1-1/4 4 0.1 9 C-9 5-1/4 1-3/8 20 0.4 10 C-12 5-11/16 1-3/8 55 1.0 11 C-16 6-3/8 1-3/4 623 11.8 12 C-20 6-25/32 1-3/4 241 4.6 13 C-24 7-7/32 1-3/4 3,024 57.2 14 C-30 8-3/32 2 10 0.2 15 C-36 9 2-1/4 2 0.0 16 D-30 8-1/8 2-1/4 4 0.1 17 DISC NA 28 0.5 18 ELEC NA 156 3.0 19 HYDR NA 2 0.0 20 L-16 6-3/8 2.0 13 0.2 21 L-20 6-25/32 2.0 22 0.4 22 L-24 7-7/32 2.0 5 0.1 23 L-24* 7-7/32 2.5 68 1.3 24 L-30 8-3/32 2.5 1 0.0 25 MM 8-1/8 2-1/4 1 0.0 29 R-20 5-15/16 2 6 0.1 30 R-24 6-13/32 2 2 0.0 31 R-30 7-1/16 2-1/4 27 0.5 34 WEDG 5/16 5/16 43 0.8 88 Not Applicable 920 17.4 99 Unknown LTCCS Codebook Brakes Data Set • 15 Codebook - Brakes Data Set Format Type Length Variable Name ML531F Numeric 8 StrokeType Definition: Indicates whether a particular chamber type is categorized as long or short. N Prcnt Code Label 218 4.1 1 Long 3,738 70.8 2 Short 822 15.6 3 Not Examined 505 9.6 9 Unknown Format Type Length Variable Name OT6F14.2 Numeric 8 LeftLength Definition: Documents the length (in centimeters) of the left brake chamber at a particular axle. This value is measured and provided by the FMCSA Truck Inspector. N Prcnt Code Label 7 0.1 0 0.00 20 0.4 0.13 0.13 2 0.0 0.16 0.16 1 0.0 0.19 0.19 1 0.0 0.24 0.24 4 0.1 0.25 0.25 11 0.2 0.32 0.32 2 0.0 0.35 0.35 1 0.0 0.40 0.40 1 0.0 0.48 0.48 ------------------------------ 1 0.0 10.48 10.48 1 0.0 12.90 12.90 3 0.1 13.96 13.96 1 0.0 14.52 14.52 1 0.0 15.32 15.32 1 0.0 16.13 16.13 265 5.0 8887 Not Applicable 68 1.3 9992 Inoperable 965 18.3 9994 Not Examined 167 3.2 9999 Unknown LTCCS Codebook Brakes Data Set • 16 Codebook - Brakes Data Set Format Type Length Variable Name OT6F14.2 Numeric 8 RightLength Definition: Documents the length (in centimeters) of the right brake chamber at a particular axle. This value is measured and provided by the FMCSA Truck Inspector. N Prcnt Code Label 8 0.2 0 0.00 1 0.0 0.01 0.01 21 0.4 0.13 0.13 3 0.1 0.16 0.16 1 0.0 0.19 0.19 4 0.1 0.25 0.25 2 0.0 0.29 0.29 12 0.2 0.32 0.32 2 0.0 0.35 0.35 2 0.0 0.40 0.40 ------------------------------ 1 0.0 13.96 13.96 1 0.0 14.28 14.28 1 0.0 14.52 14.52 2 0.0 14.59 14.59 1 0.0 15.32 15.32 1 0.0 16.13 16.13 263 5.0 8887 Not Applicable 60 1.1 9992 Inoperable 963 18.2 9994 Not Examined 165 3.1 9999 Unknown LTCCS Codebook Brakes Data Set • 17 Codebook - CargoShiftAssessments Data Set CargoShiftAssessments Data Set The CargoshiftAssessments data set contains detailed information on cargo shift events for all vehicles in the crash. Cargo shift is a pre-crash event. One record of this information is stored for each vehicle. The CargoshiftAssessments data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the CargoshiftAssessments data set with other vehicle level data sets. This data set also contains the following variables: Format Type Length Variable Name ML1609F Numeric 8 ACSType Definition: Documents the occurrence of a precrash cargo shift and the type of freight that shifted. The cargo shift must occur prior to any impact event. N Prcnt Code Label 909 39.8 0 No pre-crash cargo shift 5 0.2 2 Bulk freight (containerized) 10 0.4 3 Bulk freight (not containerized) 14 0.6 4 Large objects (solids) 10 0.4 6 Tank -liquids 1,300 56.9 77 Not applicable 4 0.2 88 Other (specify) 32 1.4 99 Unknown Format Type Length Variable Name ML1607F Numeric 8 ACSLocation Definition: Establishes the vehicle location at the start of the cargo shift sequence. N Prcnt Code Label 909 39.8 0 No pre-crash event 40 1.8 1 On roadway 2 0.1 2 On shoulder 1 0.0 3 On roadside 1,297 56.8 7 Not applicable 35 1.5 9 Unknown LTCCS Codebook CargoShiftAssessments Data Set • 18 Codebook - CargoShiftAssessments Data Set Variable Name Format Type Length MovementCount BEST8 Numeric 8 Definition: Documents the number of circumstances that were identified in which the cargo shift event occurred. This variable refers to the movements of the vehicle prior to the cargo shift. N Prcnt Code Label 2,241 98.1 0 0 6 0.3 1 1 27 1.2 2 2 9 0.4 3 3 1 0.0 4 4 Variable Name Format Type Length AP2U Numeric 8 CauseCount Definition: Documents the number of circumstances associated with a cargo shift that were coded for this vehicle. Refers to the possible causes of the cargo shift. N Prcnt Code Label 2,241 98.1 0 0 31 1.4 1 1 8 0.4 2 2 2 0.1 3 3 2 0.1 99 99 Variable Name Format Type Length ML1608F Numeric 8 ACSSpillage Definition: Establishes the occurrence of cargo spillage during the precrash phase. N Prcnt Code Label 909 39.8 0 No pre-crash cargo shift 10 0.4 1 Yes (specify) 34 1.5 2 No 1,295 56.7 7 Not applicable 36 1.6 9 Unknown LTCCS Codebook CargoShiftAssessments Data Set • 19 Codebook - CargoShiftAssessments Data Set Variable Name Format Type Length ACSConstant AP1U Numeric 8 Definition: Establishes whether or not the driver is attempting to maintain a constant velocity at the time that the cargo begins to shift. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,265 99.2 0 Absent 19 0.8 1 Present Variable Name Format Type Length AP1U Numeric 8 ACSCurve Definition: Establishes whether or not the driver is traversing a curve at the time that the cargo begins to shift. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,254 98.7 0 Absent 30 1.3 1 Present Format Type Length Variable Name AP1U Numeric 8 ACSTurn Definition: Establishes whether or not the driver is attempting to turn at the time that the cargo begins to shift. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,276 99.6 0 Absent 8 0.4 1 Present Variable Name Format Type Length AP1U Numeric 8 ACSLightBraking Definition: Establishes whether or not the driver is decelerating using light braking effort at the time that the cargo begins to shift. While the term “light braking” is a subjective evaluation, it generally implies that the level of braking is less than the level typically associated with a normal traffic stop. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,282 99.9 0 Absent 2 0.1 1 Present LTCCS Codebook CargoShiftAssessments Data Set • 20 Codebook - CargoShiftAssessments Data Set Variable Name Format Type Length AP1U Numeric 8 Definition: Establishes whether or not the driver is accelerating at the time that the cargo begins to shift. (This variable was originally an attribute choice under the variable “Circumstances In Which ACSAccelerating Event Occurred.”) N Prcnt Code Label 2,280 99.8 0 Absent 4 0.2 1 Present Variable Name Format Type Length AP1U Numeric 8 ACSAvoidance Definition: Establishes whether or not the driver initiates a precrash avoidance maneuver at or prior to the time that the cargo begins to shift. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,277 99.7 0 Absent 7 0.3 1 Present Format Type Length Variable Name AP1U Numeric 8 OtherMovement Definition: Establishes whether or not the driver/vehicle action or velocity is not described by the other cargo shift occurrence variables. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred” and was the “Other (specify):” attribute choice.) N Prcnt Code Label 2,279 99.8 0 Absent 5 0.2 1 Present Variable Name Format Type Length AP1U Numeric 8 ACSDecelerating Definition: Establishes whether or not the driver is decelerating and decelerates solely by reducing throttle input at the time that the cargo begins to shift. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,284 100.0 0 Absent LTCCS Codebook CargoShiftAssessments Data Set • 21 Codebook - CargoShiftAssessments Data Set Format Type LengthVariable Name AP1U Numeric 8 ACSModerateBraking Definition: Establishes whether or not the driver is decelerating using a moderate level of braking effort at the time that the cargo begins to shift. A moderate level of braking effort generally implies that the level of braking effort is similar to the level typically associated with a normal traffic stop. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,281 99.9 0 Absent 3 0.1 1 Present Format Type LengthVariable Name AP1U Numeric 8 ACSHeavyBraking Definition: Establishes whether or not the driver is decelerating using a heavy level of braking effort (e.g. panic stop) at the time that the cargo begins to shift. The vehicle will typically experience wheel “lock-up” in this circumstance; however, wheel lock is not a requirement for using this designation. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,277 99.7 0 Absent 7 0.3 1 Present Format Type LengthVariable Name AP1U Numeric 8 ACSStraight Definition: Establishes whether or not the driver is traversing a straight roadway segment at the time that the cargo begins to shift. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,278 99.7 0 Absent 6 0.3 1 Present LTCCS Codebook CargoShiftAssessments Data Set • 22 Codebook - CargoShiftAssessments Data Set Format Type LengthVariable Name AP1U Numeric 8 ImproperGeneralLoading Definition: Establishes whether or not the cargo shift is associated with improper loading of general freight cargo. Usually, the cargo is not properly balanced during the loading process (e.g. large boxes on top of small boxes, inappropriate gaps between cargo units, etc.). This element is also used when the freight is not properly distributed over the length of the cargo area. (This variable was originally an attribute choice under the variable “Cargo Shift Associated With.”) N Prcnt Code Label 2,282 99.9 0 Absent 2 0.1 1 Present Format Type LengthVariable Name AP1U Numeric 8 ImproperBulkLoading Definition: Establishes whether or not the cargo shift is associated with improper loading of bulk freight cargo. Usually, the cargo consists of one or several large items that are not properly balanced. (This variable was originally an attribute choice under the variable “Cargo Shift Associated With.”) N Prcnt Code Label 2,281 99.9 0 Absent 3 0.1 1 Present Variable Name Format Type Length AP1U Numeric 8 SparseTieDowns Definition: Establishes whether or not the cargo shift is associated with an inadequate number of tie downs used. This circumstance is most typically associated with bulk freight items. (This variable was originally an attribute choice under the variable “Cargo Shift Associated With.”) N Prcnt Code Label 2,268 99.3 0 Absent 16 0.7 1 Present Format Type Length Variable Name AP1U Numeric 8 WeakTieDowns Definition: Establishes whether or not the cargo shift is associated with inadequate strength of the tie downs that are used. This circumstance is most typically associated with bulk freight items. (This variable was originally an attribute choice under the variable “Cargo Shift Associated With.”) N Prcnt Code Label 2,275 99.6 0 Absent 9 0.4 1 Present LTCCS Codebook CargoShiftAssessments Data Set • 23 Codebook - CargoShiftAssessments Data Set Variable Name Format Type Length OtherSolids AP1U Numeric 8 Definition: Establishes whether or not the cargo shift (solid freight) is associated with a specific factor that is not covered under the loading or securement variables. (This variable was originally an attribute choice under the variable “Cargo Shift Associated With.”) N Prcnt Code Label 2,273 99.5 0 Absent 11 0.5 1 Present Variable Name Format Type Length AP1U Numeric 8 Sloshing Definition: Establishes whether or not the cargo shift (liquids) is associated with liquid slosh due to the truck carrying less than a full load. This affects vehicle stability. (This variable was originally an attribute choice under the variable “Cargo Shift Associated With.”) N Prcnt Code Label 2,274 99.6 0 Absent 10 0.4 1 Present Format Type Length Variable Name AP1U Numeric 8 BaffleFailure Definition: Establishes whether or not the cargo shift (liquids) is associated with a baffle failure that affects vehicle stability. (This variable was originally an attribute choice under the variable “Cargo Shift Associated With.”) N Prcnt Code Label 2,284 100.0 0 Absent Format Type Length Variable Name AP1U Numeric 8 CompartmentFailure Definition: Establishes whether or not the cargo shift (liquids) is associated with a failure of a partition for at least one of the vehicle’s compartments. This failure subsequently affects vehicle stability. (This variable was originally an attribute choice under the variable “Cargo Shift Associated With.”) N Prcnt Code Label 2,284 100.0 0 Absent LTCCS Codebook CargoShiftAssessments Data Set • 24 Codebook - CargoShiftAssessments Data Set Variable Name Format Type Length TankFailure AP1U Numeric 8 Definition: Establishes whether or not the cargo shift (liquids) is associated with a tank failure (e.g. seam failure). The failure may or may not affect vehicle stability. (This variable was originally an attribute choice under the variable “Cargo Shift Associated With.”) N Prcnt Code Label 2,284 100.0 0 Absent Format Type Length Variable Name AP1U Numeric 8 OtherLiquids Definition: Establishes whether or not the cargo shift (liquid freight) is associated with a specific factor that is not covered under the other liquid cargo shift variables. (This variable was originally an attribute choice under the variable “Cargo Shift Associated With.”) N Prcnt Code Label 2,284 100.0 0 Absent Variable Name Format Type Length AP1U Numeric 8 OtherCargos Definition: Establishes whether or not the cargo type is neither solid nor liquid (e.g. grains, bulk powders, etc.) and the vehicle experiences a cargo shift. (This variable was originally an attribute choice under the variable “Cargo Shift Associated With.”) N Prcnt Code Label 2,282 99.9 0 Absent 2 0.1 1 Present Format Type Length Variable Name AP1U Numeric 8 UnknownCause Definition: Establishes whether or not there is insufficient information to determine if a cargo shift occurred. (This variable was originally an attribute choice under the variable “Cargo Shift Associated With.”) N Prcnt Code Label 2,282 99.9 0 Absent 2 0.1 1 Present LTCCS Codebook CargoShiftAssessments Data Set • 25 Codebook - CDCCrush Data Set CDCCrush Data Set The CDCCrush data set contains detailed information about the crush profile for each impact, coded to a vehicle damaged in the crash. This material is provided as one record per unit/event/deformation location for any vehicle involved in the crash. The CDCCrush data set contains the variables CaseID, PSU, PSUStrat, RATWeight, VehicleNumber, EventNumber and ImpactNumber. EventNumber identifies a particular event in a sequence in the accident. ImpactNumber identifies each particular impact in the crush profile for a vehicle. CaseID, VehicleNumber, EventNumber and ImpactNumber uniquely identify each record in this data set. (Each record can also be uniquely identified by CaseID, VehicleNumber, EventNumber and PositionNumber.) CaseID and EventNumber should be used to merge the CDCCrush data set with the Events data set. CaseID and VehicleNumber should be used to merge the CDCCrush data set with vehicle level data sets. CaseID, VehicleNumber and PositionNumber should be used to merge the CDCCrush data set with the TruckUnits data set. Format Type Length Variable Name BEST8 Numeric 8 EventNumber Definition: Identifies a particular event in a sequence in the accident. N Prcnt Code Label 1,742 43.8 1 1 986 24.8 2 2 530 13.3 3 3 295 7.4 4 4 163 4.1 5 5 103 2.6 6 6 55 1.4 7 7 29 0.7 8 8 17 0.4 9 9 11 0.3 10 10 5 0.1 11 11 7 0.2 12 12 5 0.1 13 13 5 0.1 14 14 1 0.0 15 15 1 0.0 16 16 1 0.0 19 19 1 0.0 20 20 2 0.1 21 21 2 0.1 22 22 1 0.0 23 23 2 0.1 24 24 2 0.1 25 25 1 0.0 26 26 1 0.0 27 27 1 0.0 32 32 LTCCS Codebook CDCCrush Data Set • 26 Codebook - CDCCrush Data Set N Prcnt Code Label 1 0.0 33 33 1 0.0 34 34 1 0.0 39 39 1 0.0 41 41 Variable Name Format Type Length BEST8 Numeric 8 PositionNumber Definition: Identifies the unit number on the vehicle associated with a CDC/TDC. For example, a truck-trailer’s power unit would be Position Number “1,” and the first trailer would be Position Number “2.” A passenger vehicle would be assigned Position Number “1. N Prcnt Code Label 3,433 86.4 1 1 514 12.9 2 2 26 0.7 3 3 Variable Name Format Type Length $1 Char 1 DCType Definition: Indicates whether the deformation classification is related to a car or a truck. N Prcnt Code Label 3,973 100.0 T T Format Type Length Variable Name ML33F Numeric 8 ObjectContactClass Definition: Describes the category of object involved in a particular impact to a vehicle. N Prcnt Code Label 2,617 65.9 1 Vehicle 480 12.1 2 Noncollision 726 18.3 3 Collision with Fixed Object 141 3.5 5 Collision with Nonfixed Object 3 0.1 6 Unknown event or object 6 0.2 7 Other event (specify) LTCCS Codebook CDCCrush Data Set • 27 Codebook - CDCCrush Data Set Format Type Length Variable Name ML34F Numeric 8 CDCObjectContact Definition: Identifies the object that was contacted for this event/impact. N Prcnt Code Label 1,791 45.1 1 Vehicle#1 406 10.2 2 Vehicle#2 206 5.2 3 Vehicle#3 121 3.0 4 Vehicle#4 41 1.0 5 Vehicle#5 29 0.7 6 Vehicle#6 6 0.2 7 Vehicle#7 1 0.0 18 Vehicle#18 2 0.1 19 Vehicle#19 5 0.1 21 Vehicle#21 2 0.1 22 Vehicle#22 3 0.1 24 Vehicle#24 1 0.0 27 Vehicle#27 2 0.1 28 Vehicle#28 1 0.0 30 Vehicle#30 312 7.9 31 Overturn->rollover(excludes end-over-end) 126 3.2 34 Jackknife 29 0.7 35 Other intraunit damage (specify) 13 0.3 38 Other noncollision (specify) 13 0.3 41 Tree(<= 10 cm in diameter) 43 1.1 42 Tree(> 10 cm in diameter) 9 0.2 43 Shrubbery or bush 23 0.6 44 Embankment 24 0.6 45 Breakaway pole or post (any diameter) 34 0.9 50 Nonbreakaway pole or post (<=10cm in diameter) 38 1.0 51 Nonbreakaway pole or post(>10 cm but <= 30 cm in diameter) 13 0.3 52 Nonbreakaway pole or post(>30 cm in diameter) 6 0.2 53 Nonbreakaway pole or post(diameter unknown) 189 4.8 54 Concrete traffic barrier 6 0.2 55 Impact attenuator 157 4.0 56 Other traffic barrier(includes guardrail) (specify) 32 0.8 57 Fence 18 0.5 58 Wall 4 0.1 59 Building 14 0.4 60 Ditch or culvert 19 0.5 61 Ground 2 0.1 62 Fire hydrant LTCCS Codebook CDCCrush Data Set • 28 Codebook - CDCCrush Data Set N Prcnt Code Label 27 0.7 63 Curb 30 0.8 64 Bridge 24 0.6 68 Other fixed object (specify) 1 0.0 69 Unknown fixed object 23 0.6 70 Pass. car,light truck,van,or other vehicle not in-transport 1 0.0 71 Medium/heavy truck or bus not in-transport 38 1.0 72 Pedestrian 8 0.2 73 Cyclist or cycle 1 0.0 75 Vehicle occupant 1 0.0 76 Animal 8 0.2 77 Train 4 0.1 78 Trailer, disconnected in transport 36 0.9 79 Object fell from vehicle in-transport 21 0.5 88 Other nonfixed object (specify) 6 0.2 98 Other event (specify) 3 0.1 99 Unknown event or object Variable Name Format Type Length BEST8 Numeric 8 ForceDirection Definition: Indicates the direction of force exerted upon the vehicle by an object. If the force is applied directly upon the center of the front bumper, the force of direction is said to be “0.” The direction of force rotates to the right around the vehicle in increments of 10 degrees, circling around the vehicle until it returns to the front (360 degrees). This value is used to create the variable “Clock Force. N Prcnt Code Label 658 16.6 0 0 220 5.5 10 10 110 2.8 20 20 104 2.6 30 30 27 0.7 40 40 31 0.8 50 50 21 0.5 60 60 39 1.0 70 70 54 1.4 80 80 118 3.0 90 90 33 0.8 100 100 21 0.5 110 110 18 0.5 120 120 5 0.1 130 130 13 0.3 140 140 27 0.7 150 150 LTCCS Codebook CDCCrush Data Set • 29 Codebook - CDCCrush Data Set N Prcnt Code Label 56 1.4 160 160 99 2.5 170 170 305 7.7 180 180 85 2.1 190 190 57 1.4 200 200 20 0.5 210 210 24 0.6 220 220 11 0.3 230 230 13 0.3 240 240 15 0.4 250 250 27 0.7 260 260 129 3.2 270 270 60 1.5 280 280 31 0.8 290 290 40 1.0 300 300 20 0.5 310 310 34 0.9 320 320 76 1.9 330 330 120 3.0 340 340 306 7.7 350 350 575 14.5 888 888 371 9.3 999 999 Format Type Length Variable Name BEST8 Numeric 8 ClockForce Definition: Identifies the direction from which the principal force is applied for a particular impact. The direction of force is based on the face of a clock (e.g. an impact to the front bumper is classified as “12”) and is the first two columns of each impact’s CDC/TDC. N Prcnt Code Label 575 14.5 0 0 233 5.9 1 1 86 2.2 2 2 200 5.0 3 3 43 1.1 4 4 96 2.4 5 5 483 12.2 6 6 101 2.5 7 7 37 0.9 8 8 213 5.4 9 9 88 2.2 10 10 223 5.6 11 11 LTCCS Codebook CDCCrush Data Set • 30 Codebook - CDCCrush Data Set N Prcnt Code Label 1,166 29.3 12 12 149 3.8 13 13 3 0.1 26 26 4 0.1 32 32 1 0.0 46 46 3 0.1 52 52 3 0.1 61 61 2 0.1 63 63 1 0.0 64 64 1 0.0 66 66 1 0.0 68 68 2 0.1 69 69 2 0.1 70 70 7 0.2 71 71 5 0.1 81 81 5 0.1 82 82 3 0.1 83 83 1 0.0 86 86 1 0.0 88 88 1 0.0 89 89 1 0.0 90 90 10 0.3 92 92 223 5.6 99 99 Variable Name Format Type Length ML82F Numeric 8 OverrideDesc Definition: Indicates that this vehicle overrode or underrode another vehicle. “Override” is coded when this vehicle overrides (i.e. goes on top of) the bumper of another vehicle, and “underride” is coded when this vehicle underrides (i.e. goes below) the bumper of another vehicle. For override/underride in combination cases (CDS/Truck cases), the attribute “Medium/heavy truck or bus override” is used. N Prcnt Code Label 3,374 84.9 1 None 3 0.1 2 Override 4 0.1 3 Underride 88 2.2 4 Medium/heavy truck or bus over 130 3.3 11 Underride, compartment intrusion 77 1.9 12 Underride, no compartment intrusion 6 0.2 13 Underride, compartment intrusion unknown 229 5.8 14 Override, motor vehicle in transport LTCCS Codebook CDCCrush Data Set • 31 Codebook - CDCCrush Data Set N Prcnt Code Label 7 0.2 15 Override, motor vehicle not in transport 55 1.4 16 Unknown Variable Name Format Type Length $OT8F Char 1 DeformLocation Definition: Documents the initial plane of contact to the vehicle and represents the general area of the vehicle. This is the third column in a coded CDC/TDC. N Prcnt Code Label 43 1.1 9 Unknown 528 13.3 B Back of unit w/ cargo area 42 1.1 C Rear of cab 21 0.5 D Back -rear of tractor 1,538 38.7 F Front 838 21.1 L Left Side 712 17.9 R Right Side 157 4.0 T Top 48 1.2 U Undercarriage 46 1.2 V Front of cargo area Format Type Length Variable Name $50 Char 50 DeformLong Definition: Documents the lateral or longitudinal area of the vehicle that contains the contact deformation. This is the fourth column in a coded CDC/TDC. N Prcnt Code Label 370 9.3 * 9 Unknown 13 0.3 * B Rear Section 102 2.6 * B Side Rear -left or right 69 1.7 * B Side rear of cab to rear of trailer/cargo area 24 0.6 * C Center -front or rear 76 1.9 * D Distributed -(F+P+B) 1,250 31.5 * D Distributed -side or end 6 0.2 * F Front Section 61 1.5 * F Side Front -frontof windshield 81 2.0 * F Side Front -left or right 20 0.5 * K Side(P + W) 373 9.4 * L Left -front or rear 12 0.3 * P Center Section 63 1.6 * P Side cab 53 1.3 * P Side center section L or R LTCCS Codebook CDCCrush Data Set • 32 Codebook - CDCCrush Data Set N Prcnt Code Label 310 7.8 * R Right -front or rear 14 0.4 * S Side(F + P + W) 299 7.5 * T Trailer 37 0.9 * W Side rear of cab to rear of tractor 397 10.0 * Y Side (F + P) OR End (L + C) 18 0.5 * Y Side Front/Center Section (F+P) 315 7.9 * Z Side (P + B) OR End (C + R) 10 0.3 * Z Side Center/Rear Section(P+B) Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $50 Char 50 DeformVertical Definition: Documents either the vertical or lateral area of the vehicle that contains the contact deformation. The vertical location is used for vertical planes (F, B, L, R) and the lateral location is used for horizontal planes (T, U). This is the fifth column in a coded CDC/TDC. N Prcnt Code Label 388 9.8 * 9 Unknown 450 11.3 * A All 453 11.4 * A Top to Bottom of vehicle / no wheels 20 0.5 * B Belt Line and above 5 0.1 * C Center 108 2.7 * D Distributed 958 24.1 * E Everything below belt line 846 21.3 * E belt line and below 133 3.3 * F Belt line/below on trailer 42 1.1 * G Belt line and above 30 0.8 * H Top of frame to top 49 1.2 * H Top of frame to top of vehicle 40 1.0 * L Frame --top of frame,frame, bottom of frame 13 0.3 * L Left 202 5.1 * L Low -top of frame, frame, and bottom of frame 60 1.5 * M Middle --top of frame to belt line or hood 10 0.3 * R Right 5 0.1 * T Everything above cab 16 0.4 * T Trailer 122 3.1 * W Below undercarriage level ( wheels and tires only) 16 0.4 * Y Left and Center (L+C) 7 0.2 * Z Right and Center(R+C) Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook CDCCrush Data Set • 33 Codebook - CDCCrush Data Set Format Type Length Variable Name $OT7F Char 1 DeformDistribution Definition: Documents the general type of damage distribution for the impact. This classification provides a qualitative description of the type of damage sustained by the vehicle. This is the sixth column of a coded CDC/TDC. N Prcnt Code Label 461 11.6 9 Unknown 34 0.9 A Overhanging Structure 230 5.8 E Corner 4 0.1 K Conversion in Impact Type 190 4.8 N Narrow Impact Area 314 7.9 O Rollover (include side) 11 0.3 R Override 196 4.9 S Sideswipe 22 0.6 U No residual deformation 2,511 63.2 W Wide Impact Area Format Type Length Variable Name $OT9F Char 10 DeformExtent Definition: Documents the extent of damage for the impact. The extent of residual deformation is classified using a nine-zone extent system. Extent is a mathematical determination of which zone the crush extends into, beginning with Zone “1.” This is the seventh column of a coded CDC/TDC. N Prcnt Code Label 457 11.5 0A 0A 67 1.7 0B 0B 17 0.4 0C 0C 13 0.3 0D 0D 10 0.3 0X 0X 47 1.2 Eight Eight 94 2.4 Five Five 158 4.0 Four Four 118 3.0 Nine Nine 1,069 26.9 One One 98 2.5 Seven Seven 127 3.2 Six Six 413 10.4 Three Three 623 15.7 Two Two 662 16.7 Unknown Unknown LTCCS Codebook CDCCrush Data Set • 34 Codebook - CDCCrush Data Set Format Type Length Variable Name $15 Char 15 DeformCode Definition: Identifies the direction from which the principal force is applied for a particular impact. The direction of force is based on the face of a clock (e.g. an impact to the front bumper is classified as “12”) and is the first two columns of each impact’s CDC/TDC. N Prcnt Code Label 4 0.1 * 00999999 1 0.0 * 00999O03 1 0.0 * 00999O99 2 0.1 * 009T9999 1 0.0 * 00B9990A 3 0.1 * 00B99999 1 0.0 * 00BDAW03 1 0.0 * 00BDAW99 1 0.0 * 00BDEW99 1 0.0 * 00BDFW0A ------------------------------ 1 0.0 * 99RW9999 1 0.0 * 99RYAN01 1 0.0 * 99RZEW09 1 0.0 * 99RZEW99 1 0.0 * 99TDDW08 1 0.0 * 99U99901 1 0.0 * 99U99999 1 0.0 * 99UT9W99 1 0.0 * 99V99999 1 0.0 * 99VT990X Note: Asterisk in code column indicates that stored value is the same as the value in the label column. Format Type Length Variable Name BEST8 Numeric 8 ImpactNumber Definition: Identifies each particular impact in the crush profile for a vehicle. N Prcnt Code Label 1,799 45.3 1 1 831 20.9 2 2 374 9.4 3 3 153 3.9 4 4 50 1.3 5 5 23 0.6 6 6 12 0.3 7 7 5 0.1 8 8 726 18.3 9 9 LTCCS Codebook CDCCrush Data Set • 35 Codebook - CDCCrush Data Set Variable Name Format Type Length $50 Char 50 DamageLocation Definition: Describes the location of the direct damage on the vehicle for each impact. This information is used to determine the CDC/TDC for the impact. N Prcnt Code Label 1 0.0 * #3 axle left wheel 1 0.0 * #4 and #5 left side wheels 1 0.0 * #4 inside wheel right 1 0.0 * #4 outside wheel right 1 0.0 * -begins LF corner inward 1 0.0 * 0 TO 120 CM FROM RIGHT REAR BC 1 0.0 * 0 TO 140 CM FROM RIGHT REAR BC 1 0.0 * 0 TO 170 FROM FRT LEFT BC 1 0.0 * 0 TO 70 CM FROM FRONT RIGHT BC 1 0.0 * 0-110 CM FORWARD FRT AXLE ------------------------------ 1 0.0 * wheel/axle damage 4 0.1 * whole front 2 0.1 * whole front bumper 1 0.0 * whole front end 1 0.0 * whole left side and roof 1 0.0 * whole left side of vehicle 1 0.0 * whole rear bumper guard 1 0.0 * whole right side 1 0.0 * whole underguard 1 0.0 * windshield Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $50 Char 50 FieldLocation Definition: Describes the location of the Field L on the vehicle. Field L represents direct and induced deformation. This information is used to determine the CDC/TDC for the impact. N Prcnt Code Label 1 0.0 * #3 axle left wheel 1 0.0 * #4 & #5 left side wheels 1 0.0 * #4 inside wheel right 1 0.0 * #4 outside wheel right 1 0.0 * #7 right tire 1 0.0 * ---- LTCCS Codebook CDCCrush Data Set • 36 Codebook - CDCCrush Data Set N Prcnt Code Label 1 0.0 * 0-110 CM FORWARD FRT AXLE 1 0.0 * 0-110 CM FWD FRT AXLE 1 0.0 * 0-290 CM BEHIND FRT AXLE 1 0.0 * 0-60CM FROM RT RR CORNER OF TRAILER ------------------------------ 2 0.1 * whole front 11 0.3 * whole front bumper 2 0.1 * whole front end 1 0.0 * whole left side and roof 1 0.0 * whole left side of vehicle 1 0.0 * whole rear 2 0.1 * whole rear bumper 1 0.0 * whole rear bumper guard 1 0.0 * whole right side 1 0.0 * whole underguard Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $50 Char 50 MaxCrushLocation Definition: Describes the location in the crush profile of the maximum crush of this impact to the vehicle. This information is used to determine the CDC/TDC for the impact. N Prcnt Code Label 1 0.0 * # 1 0.0 * #3 axle left wheel 1 0.0 * #4 left outside wheel 1 0.0 * #5 axle 1 0.0 - 10 0.3 * -- 11 0.3 * -- 4 0.1 * --- 1 0.0 * ---- 1 0.0 * ----- ------------------------------ 1 0.0 * whole front bumper 1 0.0 * windshield header 90cm left of rt A pillar 1 0.0 * xxx 5 0.1 * zone 8 0.2 * zone 8 0.2 * zone 3 0.1 * zone 1 0.0 * zone LTCCS Codebook CDCCrush Data Set • 37 Codebook - CDCCrush Data Set N Prcnt Code Label 2 0.1 * zone 6 1 0.0 * zone 9 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length ML119F Numeric 8 CDCCategory Definition: Describes the information provided by columns 3-7 in a coded CDC/TDC. N Prcnt Code Label 1,194 30.1 1 Side 1,832 46.1 2 End 133 3.3 3 Top (specify) 44 1.1 4 Under (specify) 724 18.2 97 Not Applicable 46 1.2 99 Unknown Variable Name Format Type Length BEST8 Numeric 8 CDCWidth Definition: Indicates the direct damage width in centimeters. This is a measured value on the vehicle that is used in determining the CDC/TDC for this impact/event. N Prcnt Code Label 2 0.1 0 0 2 0.1 1 1 2 0.1 3 3 1 0.0 4 4 5 0.1 5 5 3 0.1 6 6 7 0.2 7 7 3 0.1 8 8 2 0.1 9 9 17 0.4 10 10 ------------------------------ 1 0.0 2200 2200 1 0.0 2225 2225 1 0.0 2249 2249 1 0.0 2250 2250 1 0.0 2260 2260 1 0.0 2280 2280 2 0.1 2300 2300 1 0.0 2615 2615 LTCCS Codebook CDCCrush Data Set • 38 Codebook - CDCCrush Data Set N Prcnt Code Label 728 18.3 9997 9997 1,253 31.5 9999 9999 LTCCS Codebook CDCCrush Data Set • 39 Codebook - Crash Data Set Crash Data Set The Crash data set contains all details that are related to the crash itself, and not individual vehicles involved in the crash. There is one record per crash. The fields contained in this data set cover all the higher-level aspects of each case, such as highest injury severities. The Crash data set contains the variables CaseID, PSU, PSUStrat and RATWeight. CaseID uniquely identifies each record in this data set and should be used to merge the Crash data set with other data sets. Format Type Length Variable Name $10 Char 10 CrashDate Definition: Identifies the date of the crash. N Prcnt Code Label 25 2.3 * 2001-01-01 19 1.8 * 2001-02-01 31 2.9 * 2001-03-01 29 2.7 * 2001-04-01 30 2.8 * 2001-05-01 38 3.6 * 2001-06-01 25 2.3 * 2001-07-01 31 2.9 * 2001-08-01 25 2.3 * 2001-09-01 42 3.9 * 2001-10-01 ------------------------------ 38 3.6 * 2003-03-01 33 3.1 * 2003-04-01 31 2.9 * 2003-05-01 31 2.9 * 2003-06-01 31 2.9 * 2003-07-01 22 2.1 * 2003-08-01 19 1.8 * 2003-09-01 30 2.8 * 2003-10-01 21 2.0 * 2003-11-01 26 2.4 * 2003-12-01 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook Crash Data Set • 40 Codebook - Crash Data Set Format Type Length Variable Name $6 Char 6 CrashTime Definition: Identifies the time of day of the crash. N Prcnt Code Label 1 0.1 * 00:03 1 0.1 * 00:08 1 0.1 * 00:10 1 0.1 * 00:15 2 0.2 * 00:20 2 0.2 * 00:25 1 0.1 * 00:29 1 0.1 * 00:30 1 0.1 * 00:31 1 0.1 * 00:35 ------------------------------ 1 0.1 * 22:45 3 0.3 * 22:52 2 0.2 * 22:55 1 0.1 * 23:00 1 0.1 * 23:11 1 0.1 * 23:25 3 0.3 * 23:30 1 0.1 * 23:55 1 0.1 * 23:57 1 0.1 * 23:58 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name BEST8 Numeric 8 VehicleCount Definition: Documents the total number of vehicles that were involved in the crash. This includes all CDS, non-CDS, in-transport, and not in-transport vehicles. N Prcnt Code Label 273 25.5 1 1 545 50.9 2 2 164 15.3 3 3 53 5.0 4 4 21 2.0 5 5 10 0.9 6 6 2 0.2 7 7 1 0.1 8 8 1 0.1 30 30 LTCCS Codebook Crash Data Set • 41 Codebook - Crash Data Set Variable Name Format Type Length BEST8 Numeric 8 TruckCount Definition: Represents the total number of heavy trucks involved in the crash. N Prcnt Code Label 937 87.6 1 1 109 10.2 2 2 14 1.3 3 3 6 0.6 4 4 4 0.4 5 5 Variable Name Format Type Length BEST8 Numeric 8 CarCount Definition: Represents the total number of passenger vehicles involved in the crash. N Prcnt Code Label 343 32.1 0 0 543 50.7 1 1 127 11.9 2 2 40 3.7 3 3 8 0.7 4 4 6 0.6 5 5 1 0.1 6 6 1 0.1 7 7 1 0.1 28 28 Format Type Length Variable Name BEST8 Numeric 8 NonMotoristCount Definition: Identifies the number of nonmotorists involved in the crash. N Prcnt Code Label 1,025 95.8 0 0 42 3.9 1 1 2 0.2 2 2 1 0.1 7 7 LTCCS Codebook Crash Data Set • 42 Codebook - Crash Data Set Format Type Length Variable Name $50 Char 50 CrashType Definition: This variable is a combination of two variables separated by “-+-”. The first is a description of the overall crash scenario. The second is a general description of the crash configuration. N Prcnt Code Label 1 0.1 * -+ 1 0.1 * Angle -+-Vehicle to vehicle 1 0.1 * Bus / Tractor Trailer -+-Rear End 1 0.1 * CAR VS. TRUCK -+-SIDE IMPACT 1 0.1 * CAR / CAR / TRUCK -+-MULTIPLE IMPACTS 1 0.1 * CAR / TRUCK -+-HEAD-ON 1 0.1 * CAR VS DUMP TRUCK -+-TURN INTO PATH 1 0.1 * CAR VS Tractor trailer -+-sideswipe same direction 1 0.1 * CAR, PICK UP, TRACTOR TRAILER -+-MUTIPLE IMPACTS 1 0.1 * CAR/ STRAIGHT TRUCK TRAILER -+-REAREND ------------------------------ 1 0.1 * vehicle to vechile -+-angle/sideswipe 4 0.4 * vehicle to vehicle -+-angle 1 0.1 * vehicle to vehicle -+-angle / sideswipe 1 0.1 * vehicle to vehicle -+-angle/ sideswipe 2 0.2 * vehicle to vehicle -+-angle/sideswipe 1 0.1 * vehicle to vehicle -+-noncollision 3 0.3 * vehicle to vehicle -+-rear end 1 0.1 * vehicle to vehicle -+-rear-end 1 0.1 * vehicle to vehicle -+-rollover 1 0.1 * vehicleto object -+- Angle/sideswipe Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name OT10F Numeric 8 CrashPARSevCode Definition: Represents the highest injury severity rating in the case, as determined by police on the Police Accident Report (PAR). N Prcnt Code Label 18 1.7 0 O -No injury 128 12.0 1 C -Possible injury 339 31.7 2 B -Non-incapacitating injury 336 31.4 3 A -Incapacitating injury 238 22.2 4 K -Killed 7 0.7 5 U -Injury, severity unknown LTCCS Codebook Crash Data Set • 43 Codebook - Crash Data Set N Prcnt Code Label 3 0.3 6 Died prior to crash 1 0.1 9 Unknown Variable Name Format Type Length CrashRESSevCode OT10F Numeric 8 Definition: Represents the highest injury severity rating in the case, as determined by injury coding and case narratives. This code is based on occupant medical records and/or case narratives and may differ from the police-reported injury severity code. N Prcnt Code Label 15 1.4 0 O -No injury 6 0.6 1 C -Possible injury 499 46.6 2 B -Non-incapacitating injury 303 28.3 3 A -Incapacitating injury 242 22.6 4 K -Killed 1 0.1 5 U -Injury, severity unknown 4 0.4 6 Died prior to crash Variable Name Format Type Length $15000 Char 15000 Summary Definition: The researcher’s description of the crash events/sequence. N Prcnt Code Label 1 0.1 * A 1999 Mack CL713 straight dump truck was traveling east in 1 0.1 * A 2001 Mitsubishi Eclipse, vehicle one, was traveling south on a 1 0.1 * A 3-vehicle collision occurred in mid June at approximately 1700 1 0.1 * A 6.8 Richter scale level earthquake had struck the surrounding 1 0.1 * A collision involving a car and a truck occurred on an urban 1 0.1 * A collision involving five vehicles occurred during a weekend 1 0.1 * A collision involving four vehicles occurred at 1040 hours on an 1 0.1 * A collision involving four vehicles occurred at 1220 hours on a 1 0.1 * A collision involving four vehicles occurred in the northbound 1 0.1 * A collision involving four vehicles occurred on a divided six-lane ------------------------------ 1 0.1 * Vehicle two, a 2000 Freightliner, was traveling west in lane three 1 0.1 * Vehicles 1 and 3 were traveling north in lane one on a dry, 1 0.1 * Vehicles 1, 2 & 3 were traveling south on a 3 lane, 1 way divided 1 0.1 * Vehicles 1, 2 and 3 were all traveling west in lane 3 of a 3-lane 1 0.1 * Vehicles 1, 2, and 3 were stopped facing southbound in lane 3 of 1 0.1 * Vehicles one and two were traveling southbound on a 55mph, 1 0.1 * Vehicles one and two were traveling southbound on a wet and LTCCS Codebook Crash Data Set • 44 Codebook - Crash Data Set N Prcnt Code Label 1 0.1 * Vehicles one, two, and three were southbound in lane 3 of a 1 0.1 * Vehicles' one, two and three were all traveling east on a three 1 0.1 * Vehicles' one, two and three were all traveling west on a 4-lane Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length OT11F Numeric 8 Day Definition: Identifies the day of the week that the crash occurred. N Prcnt Code Label 40 3.7 1 Sunday 182 17.0 2 Monday 205 19.2 3 Tuesday 203 19.0 4 Wednesday 190 17.8 5 Thursday 183 17.1 6 Friday 67 6.3 7 Saturday Format Type Length Variable Name OT70F Numeric 8 CollisionType Definition: Describes the type of vehicles involved in the crash using the following vehicle classifications. These classifications are “strung together” to indicate the number and type of each vehicle involved in the crash. N Prcnt Code Label 5 0.5 BUS-TRUCK 1 0.1 CAR-BUS-TRUCK 1 0.1 CAR-CAR-CAR-CAR-TRUCK 2 0.2 CAR-CAR-CAR-OLV-TRUCK 2 0.2 CAR-CAR-CAR-PICKUP-TRUCK 6 0.6 CAR-CAR-CAR-TRUCK 1 0.1 CAR-CAR-CAR-TRUCK-TRUCK 1 0.1 CAR-CAR-LIGHT TRUCK-TRUCK 1 0.1 CAR-CAR-LIGHT TRUCK-TRUCK-TRUCK 2 0.2 CAR-CAR-OLV-TRUCK 2 0.2 CAR-CAR-PICKUP-TRUCK 37 3.5 CAR-CAR-TRUCK 3 0.3 CAR-CAR-TRUCK-TRUCK 2 0.2 CAR-CAR-TRUCK-TRUCK-TRUCK 1 0.1 CAR-CAR-VAN-PICKUP-TRUCK 4 0.4 CAR-CAR-VAN-TRUCK 1 0.1 CAR-CAR-VAN-TRUCK-TRUCK LTCCS Codebook Crash Data Set • 45 Codebook - Crash Data Set N Prcnt Code Label 4 0.4 18 CAR-LIGHT TRUCK-TRUCK 5 0.5 19 CAR-OLV-OLV-TRUCK 2 0.2 20 CAR-OLV-PICKUP-TRUCK 1 0.1 21 CAR-OLV-PICKUP-TRUCK-TRUCK 17 1.6 22 CAR-OLV-TRUCK 1 0.1 23 CAR-OLV-TRUCK-MCYCLE 3 0.3 24 CAR-OLV-TRUCK-TRUCK 3 0.3 25 CAR-OLV-VAN-TRUCK 1 0.1 26 CAR-OLV-VAN-TRUCK-TRUCK 1 0.1 27 CAR-PICKUP-PICKUP-TRUCK 23 2.1 28 CAR-PICKUP-TRUCK 1 0.1 29 CAR-PICKUP-TRUCK-TRUCK 303 28.3 30 CAR-TRUCK 2 0.2 31 CAR-TRUCK-MCYCLE 26 2.4 32 CAR-TRUCK-TRUCK 1 0.1 33 CAR-TRUCK-TRUCK-MCYCLE 4 0.4 34 CAR-TRUCK-TRUCK-TRUCK 1 0.1 35 CAR-TRUCK-TRUCK-TRUCK-TRUCK 3 0.3 36 CAR-VAN-PICKUP-TRUCK 1 0.1 37 CAR-VAN-PICKUP-TRUCK-TRUCK 10 0.9 38 CAR-VAN-TRUCK 2 0.2 39 CAR-VAN-TRUCK-TRUCK 1 0.1 40 CAR-VAN-VAN-VAN-TRUCK 1 0.1 41 LIGHT TRUCK-TRUCK 1 0.1 42 LIGHT TRUCK-TRUCK-TRUCK 14 1.3 43 MULTI VEHICLE 2 0.2 44 OLV-OLV-TRUCK 1 0.1 45 OLV-PICKUP-PICKUP-TRUCK-TRUCK 4 0.4 46 OLV-PICKUP-TRUCK 55 5.1 47 OLV-TRUCK 5 0.5 48 LV-TRUCK-TRUCK 2 0.2 49 OLV-TRUCK-TRUCK-TRUCK 1 0.1 50 OLV-VAN-PICKUP-TRUCK 5 0.5 51 OLV-VAN-TRUCK 1 0.1 52 PICKUP-PICKUP-PICKUP-TRUCK 4 0.4 53 PICKUP-PICKUP-TRUCK 79 7.4 54 PICKUP-TRUCK 10 0.9 55 PICKUP-TRUCK-TRUCK 1 0.1 56 PICKUP-TRUCK-TRUCK-TRUCK-TRUCK 273 25.5 57 TRUCK 7 0.7 58 TRUCK-MCYCLE 2 0.2 59 TRUCK-OTHER 44 4.1 60 TRUCK-TRUCK LTCCS Codebook Crash Data Set • 46 Codebook - Crash Data Set N Prcnt Code Label 1 0.1 61 TRUCK-TRUCK-MHOME 5 0.5 62 TRUCK-TRUCK-TRUCK 3 0.3 63 TRUCK-TRUCK-TRUCK-TRUCK 3 0.3 64 TRUCK-TRUCK-TRUCK-TRUCK-TRUCK 2 0.2 65 VAN-PICKUP-TRUCK 50 4.7 66 VAN-TRUCK 1 0.1 67 VAN-TRUCK-MCYCLE 1 0.1 68 VAN-TRUCK-TRUCK 2 0.2 69 VAN-VAN-TRUCK 2 0.2 70 VAN-VAN-TRUCK-TRUCK Format Type Length Variable Name ML2065F Numeric 8 Treatment Definition: Represents the highest level of treatment of any occupant in the case. N Prcnt Code Label 122 11.4 0 No treatment 20 1.9 1 Dead on Arrival (DOA) at hospital 30 2.8 2 Dead prior to Admission 379 35.4 3 Hospitalization 457 42.7 4 Transported and released 13 1.2 5 Treatment at scene -non-transported 15 1.4 6 Treatment later 22 2.1 7 Transported to a medical facility-unknown if treated 3 0.3 8 Treatment -other (specify) 9 0.8 9 Unknown Variable Name Format Type Length ML4211F Numeric 8 OCCFatality Definition: Documents if there were any occupant fatalities in the case. N Prcnt Code Label 850 79.4 0 Not Fatal 206 19.3 1 Fatal 12 1.1 2 Fatal -ruled disease (specify) 2 0.2 9 Unknown LTCCS Codebook Crash Data Set • 47 Codebook - Crash Data Set Variable Name CRAAlcohol Format ML642F Type Numeric Length 8 Definition: Documents whether or not alcohol was involved in the crash. N Prcnt Code Label 91 8.5 1 Yes 852 79.6 2 No 127 11.9 9 Unknown Variable Name AnyDrugsCrash Format ML642F Type Numeric Length 8 Definition: Documents whether or not any drugs (legal or illegal) were present or involved in the crash. N Prcnt Code Label 610 57.0 1 Yes 460 43.0 2 No LTCCS Codebook Crash Data Set • 48 Codebook - CrashAssessment Data Set CrashAssessment Data Set The CrashAssessment data set contains assessment information for each vehicle and driver involved in the crash. One record of this information exists for each vehicle. The CrashAssessment data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the CrashAssessment data set with other vehicle level data sets. Format Type Length Variable Name ML657F Numeric 8 PreEventMovement Definition: Establishes the subject vehicle’s pre-critical event movement pattern. The pre-event movement pattern is usually described as the point which both precedes the critical precrash envelope and which precedes vehicle motions that place the involved vehicle(s) on an imminent collision path. N Prcnt Code Label 24 1.1 0 No driver present 1,141 50.0 1 Going Straight 155 6.8 2 Decelerating in traffic lane 33 1.4 3 Accelerating in traffic lane 14 0.6 4 Starting in traffic lane 296 13.0 5 Stopped in traffic lane 53 2.3 6 Passing or overtaking another vehicle 3 0.1 7 Disabled or parked in travel lane 15 0.7 10 Turning right 36 1.6 11 Turning left 3 0.1 12 Making a U-turn 7 0.3 13 Backing up (other than for parking position) 274 12.0 14 Negotiating a curve 86 3.8 15 Changing lanes 17 0.7 16 Merging 63 2.8 17 Successful avoidance maneuver to a previous critical event 26 1.1 98 Other (specify) 38 1.7 99 Unknown Format Type Length Variable Name ML654F Numeric 8 ACRCriticalEvent Definition: Identifies the event which made the crash imminent (i.e. something occurred which made the collision inevitable). A precrash critical event is coded for each vehicle in the crash and documents the circumstances leading to this vehicle’s first impact in the crash sequence. N Prcnt Code Label 13 0.6 1 Blow out/flat tire, (specify blow out/flat,location/make) 7 0.3 3 Disabling vehicle failure (e.g, wheel fell off) Specify: 5 0.2 4 Non-disabling vehicle problem (e.g., hood flew up) Specify: LTCCS Codebook CrashAssessment Data Set • 49 Codebook - CrashAssessment Data Set N Prcnt Code Label 16 0.7 5 Poor road conditions(Puddle,pot hole,ice,etc.) Specify: 122 5.3 6 Traveling too fast for conditions 12 0.5 7 Jacknife Event 26 1.1 8 Other cause of control loss (specify) 13 0.6 9 Unknown cause of control loss 131 5.7 10 Over the lane line on left side of travel lane 63 2.8 11 Over the lane line on right side of travel lane 42 1.8 12 Off the edge of the road on the left side 83 3.6 13 Off the edge of the road on the right side 1 0.0 14 End departure 76 3.3 15 Turning left at intersection 22 1.0 16 Turning right at interesection 76 3.3 17 Crossing over (passing through) intersection 7 0.3 18 This vehicle decelerating 119 5.2 50 Other vehicle stopped 79 3.5 51 Travelling in same direction with low steady speed 82 3.6 52 Travelling in same direction while decelerating 252 11.0 53 Traveling in same direction with higher speed 30 1.3 54 Traveling in opposite direction 2 0.1 55 In crossover 2 0.1 56 Backing 1 0.0 59 Unknown travel direction of other motor vehicle in lane 91 4.0 60 From adjacent lane (same direction) -over left lane line 95 4.2 61 From adjacent lane (same direction -over right lane line 110 4.8 62 From opposite direction-over left lane line 2 0.1 63 From opposite direction -over right lane line 4 0.2 65 From crossing street, turning into same direction 68 3.0 66 From crossing street, across path 22 1.0 67 From crossing street ,turning into opposite direction 2 0.1 70 From driveway,turning into same direction 4 0.2 71 From driveway, across path 5 0.2 72 From driveway, turning into oppsite direction 1 0.0 74 From enterance to limited access highway 26 1.1 80 Pedestrian in roadway 1 0.0 81 Pedestrain approaching roadway 7 0.3 83 Pedalcyclist or other nonmotorist in roadway (specify): 1 0.0 87 Animal in roadway 16 0.7 90 Object in roadway 41 1.8 98 Other (Specify) 14 0.6 100 Cargo Shift 492 21.5 125 Not involved first harmful event LTCCS Codebook CrashAssessment Data Set • 50 Codebook - CrashAssessment Data Set Format Type Length Variable Name ML4123F Numeric 8 CriticalEventCat Definition: Groups the individual attributes of the Critical Precrash Event into categories. These categories are helpful in deciding the critical precrash event. N Prcnt Code Label 228 10.0 1 This vehicle loss of control 501 21.9 2 This vehicle traveling 567 24.8 3 Other motor vehicle in lane 404 17.7 4 Other motor vehicle encroaching into lane 34 1.5 5 Pedestrian, pedacyclist, or other nonmotorist 17 0.7 6 Object or animal 41 1.8 7 Other (specify) 492 21.5 9 This vehicle not involved in first harmful event Format Type Length Variable Name ML655F Numeric 8 ACRReason Definition: Establishes the critical reason for the occurrence of the critical event. The critical reason is the immediate reason for this event and is often the last failure in the causal chain (i.e. closest in time to the critical precrash event). Although the critical reason is an important part of the description of crash events, it is not the cause of the crash nor does it imply the assignment of fault. N Prcnt Code Label 1,229 53.8 0 Critical event not coded to this vehicle 59 2.6 100 Sleep, that is, actually asleep 40 1.8 101 Heart attack or other physical impairment of the ability to act 3 0.1 108 Other critical non-performance (specify) 6 0.3 109 Unknown critical non-performance 59 2.6 110 Inattention (i.e., daydreaming) 43 1.9 111 Internal distraction 28 1.2 112 External distraction 138 6.0 113 Inadequate surveillance (e.g., failed to look, looked but did not 3 0.1 118 Other recognition error (specify) 53 2.3 119 Unknown recognition error 69 3.0 120 Too fast for conditions to be able to respond to unexpected 2 0.1 121 Too slow for traffic stream 36 1.6 122 Misjudgment of gap or other's speed 34 1.5 123 Following too closely to respond to unexpected actions 22 1.0 124 False assumption of other road user's actions 44 1.9 125 Illegal maneuver 6 0.3 127 Inadequate evasive action, e.g. braking only, not braking and 23 1.0 128 Aggressive driving behavior 20 0.9 138 Other decision error (specify) 3 0.1 139 Unknown decision error LTCCS Codebook CrashAssessment Data Set • 51 Codebook - CrashAssessment Data Set N Prcnt Code Label 63 2.8 140 Too fast for curve/turn 1 0.0 141 Panic/Freezing 40 1.8 142 Overcompensation 38 1.7 143 Poor directional control e.g., failing to control vehicle with skill 2 0.1 149 Unknown performance error 98 4.3 199 Type of driver error unknown 16 0.7 200 Tires/wheels failed 8 0.4 201 Brakes failed 1 0.0 202 Steering failed 17 0.7 203 Cargo shifted 1 0.0 204 Trailer attachment failed 2 0.1 205 Suspension failed 1 0.0 208 Body, doors, hood failed 2 0.1 298 Other vehicle failure (specify) 1 0.0 299 Unknown vehicle failures 1 0.0 500 Signs/signals missing 1 0.0 504 View obstructed by other vehicles 1 0.0 505 Road design -roadway geometry (e.g., ramp curvature) 1 0.0 507 Road design -other 20 0.9 509 Slick roads (low friction road surface due to ice, loose debris, any 1 0.0 518 Other highway-related condition (specify) 1 0.0 522 Fog 2 0.1 523 Wind gust 7 0.3 530 Glare 18 0.8 540 Degraded braking capability 3 0.1 541 Transmission/engine failure 17 0.7 999 Unknown reason for critical event Variable Name Format Type Length OT1F Numeric 8 ReasonCat Definition: Groups the attributes for the variable Critical Reason for the Critical Event variable into categories. N Prcnt Code Label 1,229 53.8 0 No Driver Error 108 4.7 Physical Driver Factor 324 14.2 Driver Recognition Factor 322 14.1 Driver Decision Factor 179 7.8 Driver Performance Factor 70 3.1 Vehicle Related Factor 25 1.1 Environment -Highway LTCCS Codebook CrashAssessment Data Set • 52 Codebook - CrashAssessment Data Set N Prcnt Code Label 10 0.4 7 Environment -Weather 17 0.7 99 Unknown Reason Variable Name Format Type Length ML656F Numeric 8 ACRAvoidance Definition: Documents the driver’s actions initiated in response to the realization of impending danger. Attempted avoidance maneuvers are movements/actions initiated by the subject driver, within the crucial crash envelope, in response to a critical precrash event. Attempted avoidance maneuvers occur after the driver has realization of an impending danger. N Prcnt Code Label 24 1.1 0 No driver present 1,219 53.4 1 No avoidance maneuver 137 6.0 2 Braking (no lockup) 219 9.6 3 Braking (lockup) 13 0.6 4 Braking (lockup unknown) 61 2.7 6 Steering left 72 3.2 7 Steering right 106 4.6 8 Braking and steering left 128 5.6 9 Braking and steering right 21 0.9 10 Accelerating 8 0.4 11 Accelerating and steering left 10 0.4 12 Accelerating and steering right 115 5.0 98 Other action (specify) 151 6.6 99 Unknown Format Type Length Variable Name ML659F Numeric 8 ACRStability Definition: Focuses upon this vehicle’s dynamics after the critical event. The purpose of this variable is to assess the stability of the vehicle after the critical event. The stability of the vehicle prior to an avoidance action is not considered except in the following situation: A vehicle that is out of control (e.g. yawing clockwise) prior to an avoidance maneuver is coded “Other vehicle loss of control” only if an avoidance action was taken in response to an impending danger. N Prcnt Code Label 24 1.1 0 No driver present 1,644 72.0 1 Tracking 368 16.1 2 Skidding longitudinally->rotation less than 30 degrees 59 2.6 3 Skidding laterally->clockwise rotation 72 3.2 4 Skidding laterally->counterclockwise rotation 47 2.1 8 Other vehicle loss-of-control (specify) 70 3.1 9 Pre-crash stability unknown LTCCS Codebook CrashAssessment Data Set • 53 Codebook - CrashAssessment Data Set Format Type Length Variable Name ML658F Numeric 8 ACRLocation Definition: Reports the location of the subject vehicle at the point where its pre-impact stability is determined. N Prcnt Code Label 24 1.1 0 No driver present 1,431 62.7 1 Stayed in original travel lane 521 22.8 2 Stayed on roadway but left original travel lane 10 0.4 3 Stayed on roadway, not known if left original travel lane 221 9.7 4 Departed roadway 11 0.5 5 Remained off roadway 24 1.1 6 Returned to roadway 13 0.6 7 Entered roadway 29 1.3 9 Unknown Format Type Length Variable Name ML660F Numeric 8 ACRRightOfWay Definition: Establishes vehicle right-of-way characteristics, from a legal perspective, for the subject vehicle. Specifically, did this vehicle have the right-of-way? N Prcnt Code Label 581 25.4 1 Yes 401 17.6 2 No 1,295 56.7 88 Not Applicable 7 0.3 99 Unknown Format Type Length Variable Name BEST8 Numeric 8 CrashCode Definition: Used in categorizing the collisions of drivers involved in crashes. A collision is defined here as the first harmful event in a crash between a vehicle and some object, accompanied by property damage or human injury. The object may be another vehicle, a person, an animal, a fixed object, the road surface, or the ground. If the first collision is a rollover, the impact is with the ground or road surface. The collision may also involve plowing into soft ground, if severe deceleration results in damage or injury. A road departure without damage or injury is not defined as a collision. This variable encompasses the “Configuration” variable, which is a component of this variable. N Prcnt Code Label 18 0.8 0 0 65 2.8 1 1 43 1.9 2 2 6 0.3 3 3 1 0.0 5 5 LTCCS Codebook CrashAssessment Data Set • 54 Codebook - CrashAssessment Data Set N Prcnt Code Label 38 1.7 6 6 54 2.4 7 7 6 0.3 8 8 1 0.0 9 9 2 0.1 10 10 2 0.1 11 11 3 0.1 12 12 32 1.4 13 13 1 0.0 14 14 8 0.4 15 15 113 4.9 20 20 106 4.6 21 21 7 0.3 22 22 1 0.0 23 23 90 3.9 24 24 85 3.7 25 25 2 0.1 26 26 2 0.1 27 27 61 2.7 28 28 53 2.3 29 29 1 0.0 30 30 7 0.3 31 31 32 1.4 32 32 2 0.1 33 33 4 0.2 42 42 1 0.0 43 43 7 0.3 44 44 105 4.6 45 45 49 2.1 46 46 53 2.3 47 47 54 2.4 48 48 35 1.5 50 50 35 1.5 51 51 10 0.4 52 52 10 0.4 62 62 45 2.0 64 64 45 2.0 65 65 14 0.6 66 66 38 1.7 68 68 38 1.7 69 69 10 0.4 70 70 10 0.4 71 71 10 0.4 72 72 LTCCS Codebook CrashAssessment Data Set • 55 Codebook - CrashAssessment Data Set N Prcnt Code Label 10 0.4 73 73 2 0.1 74 74 4 0.2 76 76 4 0.2 77 77 5 0.2 78 78 5 0.2 79 79 4 0.2 80 80 4 0.2 81 81 30 1.3 82 82 30 1.3 83 83 2 0.1 84 84 31 1.4 86 86 31 1.4 87 87 38 1.7 88 88 38 1.7 89 89 6 0.3 90 90 7 0.3 92 92 4 0.2 93 93 614 26.9 98 98 Variable Name Format Type Length AccidentCat OT2F Numeric 8 Definition: Used in categorizing the collisions of drivers involved in crashes. A collision is defined here as the first harmful event in a crash between a vehicle and some object, accompanied by property damage or human injury. The object may be another vehicle, a person, an animal, a fixed object, the road surface, or the ground. If the first collision is a rollover, the impact is with the ground or road surface. The collision may also involve plowing into soft ground, if severe deceleration results in damage or injury. A road departure without damage or injury is not defined as a collision. This variable is part of the larger variable “Crash Type.” The “Crash Type” variable is actually broken down into three components: the crash category, the crash configuration, and the accident type. This variable only deals with the configuration of the crash. N Prcnt Code Label 115 5.0 1 Right Roadside Departure 562 24.6 2 Rear-End 80 3.5 3 Head-On 118 5.2 4 Turn Across Path 144 6.3 5 Straight Paths 104 4.6 6 Same Trafficway Opposite Directions -Sideswipe/Angle 101 4.4 7 Left Roadside Departure 5 0.2 8 Same Trafficway Same Direction -Forward Impact 10 0.4 9 Same Trafficway Opposite Directions -Forward Impact 88 3.9 10 Turn Into Path 46 2.0 11 Single Driver -Forward Impact LTCCS Codebook CrashAssessment Data Set • 56 Codebook - CrashAssessment Data Set N Prcnt Code Label 268 11.7 12 Same Trafficway Same Direction -Sideswipe/Angle 643 28.2 13 Miscellaneous Variable Name Format Type Length AP1U Numeric 8 ACRJackknife Definition: Documents the presence/absence of a jackknife for this vehicle. N Prcnt Code Label 2,223 97.3 0 Absent 61 2.7 1 Present Variable Name ACRCargoshift Format AP1U Type Numeric Length 8 Definition: Documents the presence/absence of a cargo shift for this vehicle. N Prcnt Code Label 2,241 98.1 0 Absent 43 1.9 1 Present LTCCS Codebook CrashAssessment Data Set • 57 Codebook - CrashDiscussion Data Set CrashDiscussion Data Set The CrashDiscussion data set contains the assessment summary for each vehicle and driver in the crash. This material is provided as one record per vehicle. The CrashDiscussion data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the CrashDiscussion data set with other vehicle level data sets. Format Type Length Variable Name $21000 Char 21000 Discussion Definition: The Case Summary is intended to provide a detailed description of the crash sequence including precrash vehicle movement patterns and driver precrash actions. In addition to describing crash events for each vehicle/driver, the summary is intended to provide a detailed accounting of all causal-related information for this vehicle/driver. This includes describing the critical precrash event, the critical reason for the critical event, and all critical event associated factors. N Prcnt Code Label 1 0.0 * . Vehicle 1 was a 1988 Ford LTD Crown Victoria with 3 1 0.0 * 1999 Toyota Tacoma pickup truck The driver of the 1999 Toyota 1 0.0 * A 2001 Freightliner Towing a van semi-trailer (Vehicle 2) and a 1 0.0 * A 2001 Freightliner Towing a van semi-trailer (Vehicle 2) and a 1 0.0 * A 2001 Mitsubishi Eclipse, vehicle one, was traveling south on a 1 0.0 * A 2001 Mitsubishi Eclipse, vehicle one, was traveling south on a 1 0.0 * A 3-vehicle collision occurred in mid June at approximately 1700 1 0.0 * A 3-vehicle collision occurred in mid June at approximately 1700 1 0.0 * A 3-vehicle collision occurred in mid June at approximately 1700 1 0.0 * A collision involving four vehicles occurred at 1040 hours on an ------------------------------ 1 0.0 * Vehicle two is a 1998 Pontiac Grand Prix. Vehicle two was 1 0.0 * Vehicle two was a 1983 Peterbilt conventional tractor with a 1 0.0 * Vehicle two was a 1994 Ford medium/heavy flatbed straight 1 0.0 * Vehicle two was a 1995 Western Star truck with a flat bed trailer 1 0.0 * Vehicle two was a 2001 Freightliner F80 straight truck with a 1 0.0 * Vehicle two, a 1989 Freightliner pulling one trailer, was traveling 1 0.0 * Vehicle two, a 1995 Ford L8000 two-axle straight truck, traveling 1 0.0 * Vehicle two, a 1999 Peterbilt tractor with one refrigerated van 1 0.0 * Vehicle two, a 1999 single unit straight truck, was negotiating a 1 0.0 * Vehicle two, a 1999 single unit straight truck, was negotiating a Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook CrashDiscussion Data Set • 58 Codebook - DMVViolation Data Set DMVViolation Data Set The DMVViolation data set contains information on the driver’s prior record of motor vehicle violations. One record is provided for each violation and is stored for each vehicle/driver where this information is available. The DMVViolation data set contains the variables CaseID, PSU, PSUStrat, RATWeight, VehicleNumber and DriverNumber. CaseID and VehicleNumber should be used to merge the DMVViolation data set with vehicle level data sets. DriverNumber is used to uniquely identify each driver, however, since a driver can have more than one violation and be involved in more than one crash, this variable does not uniquely identify each record. Variable Name Format Type Length BEST8 Numeric 8 ViolationNumber Definition: Identifies the violation number. N Prcnt Code Label 983 20.9 1 1 728 15.4 2 2 550 11.7 3 3 437 9.3 4 4 350 7.4 5 5 285 6.0 6 6 235 5.0 7 7 189 4.0 8 8 148 3.1 9 9 121 2.6 10 10 ------------------------------ 5 0.1 29 29 4 0.1 30 30 3 0.1 31 31 3 0.1 32 32 2 0.0 33 33 1 0.0 34 34 1 0.0 35 35 1 0.0 36 36 1 0.0 37 37 1 0.0 38 38 LTCCS Codebook DMVViolation Data Set • 59 Codebook - DMVViolation Data Set Format Type Length Variable Name $2 Char 2 LicState Definition: Identifies the State in which the driver’s (driving) license was issued. N Prcnt Code Label 567 12.0 * AL 1 0.0 * AR 129 2.7 * CA 280 5.9 * CO 8 0.2 * DE 334 7.1 * FL 135 2.9 * GA 10 0.2 * IA 3 0.1 * ID 68 1.4 * IL 195 4.1 * IN 3 0.1 * KS 4 0.1 * KY 11 0.2 * LA 13 0.3 * MA 263 5.6 * MD 7 0.1 * ME 292 6.2 * MI 15 0.3 * MN 1 0.0 * MO 13 0.3 * MS 2 0.0 * MT 442 9.4 * NC 27 0.6 * NE 456 9.7 * NJ 15 0.3 * NM 1 0.0 * NV 188 4.0 * NY 120 2.5 * OH 25 0.5 * OK 9 0.2 * OR 388 8.2 * PA 80 1.7 * SC 189 4.0 * TN 222 4.7 * TX 1 0.0 * UK 12 0.3 * UT LTCCS Codebook DMVViolation Data Set • 60 Codebook - DMVViolation Data Set N Prcnt Code Label 14 0.3 * VA 140 3.0 * WA 12 0.3 * WI 10 0.2 * WV 7 0.1 * WY Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $10 Char 10 CitDate Definition: Identifies the date that the driver received a citation for a particular violation. N Prcnt Code Label 1 0.0 * 1962-04-01 1 0.0 * 1963-11-01 1 0.0 * 1965-03-01 1 0.0 * 1965-05-01 1 0.0 * 1966-02-01 1 0.0 * 1966-08-01 1 0.0 * 1967-11-01 2 0.0 * 1968-06-01 1 0.0 * 1969-09-01 1 0.0 * 1969-10-01 ------------------------------ 8 0.2 * 2003-04-01 21 0.4 * 2003-05-01 22 0.5 * 2003-06-01 15 0.3 * 2003-07-01 11 0.2 * 2003-08-01 6 0.1 * 2003-09-01 16 0.3 * 2003-10-01 6 0.1 * 2003-11-01 5 0.1 * 2003-12-01 3 0.1 * 9999-99-99 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook DMVViolation Data Set • 61 Codebook - DMVViolation Data Set Format Type Length Variable Name $10 Char 10 ConvDate Definition: Identifies the date that the driver was convicted of a particular violation. N Prcnt Code Label 1 0.0 * 1963-12-01 1 0.0 * 1965-03-01 1 0.0 * 1965-07-01 1 0.0 * 1966-02-01 1 0.0 * 1966-09-01 1 0.0 * 1967-12-01 1 0.0 * 1968-06-01 1 0.0 * 1968-07-01 1 0.0 * 1969-10-01 1 0.0 * 1969-11-01 ------------------------------ 22 0.5 * 2003-09-01 20 0.4 * 2003-10-01 11 0.2 * 2003-11-01 10 0.2 * 2003-12-01 6 0.1 * 2004-01-01 11 0.2 * 2004-02-01 11 0.2 * 2004-03-01 2 0.0 * 2004-05-01 1 0.0 * 2004-07-01 24 0.5 * 9999-99-99 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $5 Char 5 ACDcode Definition: Represents Department Of Motor Vehicle (DMV) violation codes. N Prcnt Code Label 635 13.5 * 1 0.0 * ??? 4 0.1 * A04 2 0.0 * A08 15 0.3 * A10 1 0.0 * A11 5 0.1 * A12 49 1.0 * A20 44 0.9 * A21 LTCCS Codebook DMVViolation Data Set • 62 Codebook - DMVViolation Data Set N Prcnt Code Label 2 0.0 * A22 ------------------------------ 83 1.8 * S94 2 0.0 * S95 30 0.6 * S96 1 0.0 * SC2 1 0.0 * SP 3 0.1 * SP3 5 0.1 * U01 1 0.0 * U07 1 0.0 * U25 10 0.2 * W10 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $75 Char 75 ACDdetail Definition: The 5-digit code that provides further detail of the ACD code. N Prcnt Code Label 2,788 59.2 * 103 2.2 * 0 1 0.0 * 00 167 3.5 * 00000 1 0.0 * 00054 1 0.0 * 05015 2 0.0 * 05021 1 0.0 * 15020 1 0.0 * 19 1 0.0 * 20030 ------------------------------ 8 0.2 * S11 21 0.4 * S15 1 0.0 * S16 15 0.3 * S51 28 0.6 * S61 2 0.0 * S71 79 1.7 * S93 13 0.3 * S94 2 0.0 * S95 2 0.0 * U06 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook DMVViolation Data Set • 63 Codebook - DMVViolation Data Set Format Type Length Variable Name BEST8 Numeric 8 DriverNumber Definition Uniquely identifies each driver, however, since a driver can have more than one violation and be involved in more than one crash, this variable does not uniquely identify each record. N Prcnt Code Label 1 0.0 1 1 1 0.0 6 6 1 0.0 7 7 4 0.1 10 10 5 0.1 13 13 1 0.0 14 14 3 0.1 15 15 1 0.0 18 18 4 0.1 19 19 13 0.3 20 20 ------------------------------ 1 0.0 11319 11319 5 0.1 11320 11320 2 0.0 11322 11322 6 0.1 11338 11338 13 0.3 11339 11339 3 0.1 11343 11343 1 0.0 11351 11351 1 0.0 11352 11352 1 0.0 11356 11356 1 0.0 11359 11359 Format Type Length Variable Name $75 Char 75 ViolDescription Definition: Describes each violation and corresponds to the ACD Code. N Prcnt Code Label 646 13.7 * 33 0.7 * "EXCEED/VIOLATING SIZE, WEIGHT,/PASSENGER//CARGO 1 0.0 * "FT OBEY RAILROAD GATES,SIGNS/SIGNALS" 2 0.0 * "IMPR LANE/LOCATION -ROAD SHOULDER, 42 0.9 * "MISSING,DEFACED,/OBSCURED LIC PLATES" 1 0.0 * "MV IN MANUFACTUR,DISTRIBUTE,/DISPENSE A 2 0.0 * "RECKLESS, CARELESS,/NEGLIGENT DRIVE" 21 0.4 * "SHOW/USE IMPROPERLY-REG,PLATES,DECAL/STICKER" 21 0.4 * "SPILLING, DRAGGING, UNSECURED/UNSAFE LOAD" 15 0.3 * "STOP,STAND,/PARK WHERE PROHIBITED/IMPROPER" LTCCS Codebook DMVViolation Data Set • 64 Codebook - DMVViolation Data Set N Prcnt Code Label ------------------------------ 1 0.0 * TOWING/PUSHING VEH IMPROPERLY 1 0.0 * TRANSPORTING LIQUOR ILLEGALLY 1 0.0 * UNAUTH USE OF A VEH/TAKE VEH W/O OWNER CONSENT 51 1.1 * UNSAFE CONDITION OF VEH 96 2.0 * UNSAFE OPERATION 10 0.2 * USE OF EQUIP PROHIBITED BY LAW 3 0.1 * USE OF RADAR/LASER DETECTOR PROHIBITED BY LAW 1 0.0 * VEH HOMICIDE 6 0.1 * VIOLATE RESTRICTIONS OF DRIVER LIC 10 0.2 * WITHDRAWAL (REASON NOT SPECIFIED) Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook DMVViolation Data Set • 65 Codebook - DriverAssessment Data Set DriverAssessment Data Set The DriverAssessment data set contains assessment information on the driver regarding level of attention, behavior, mental or emotional state prior to the crash. One record of this information exists for each vehicle/driver. The DriverAssessment data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the DriverAssessment data set with other vehicle level data sets. Format Type Length Variable Name ML867F Numeric 8 SightLine Definition: Establishes the driver’s sight line to the other vehicle in terms of being clear or being obstructed in some manner. N Prcnt Code Label 1,957 85.7 1 Yes 12 0.5 2 No, view obstructed by roadway curvature or grade 5 0.2 3 No, view obstructed by roadside appurtenance 42 1.8 4 No, view obstructed by intervening vehicle 225 9.9 7 Not applicable 23 1.0 8 Other (specify) 20 0.9 9 Unknown Format Type Length Variable Name ML730F Numeric 8 Obscured Definition: Establishes the driver’s view of the other vehicle in terms of having a clear view or having a view that is obscured in some manner. N Prcnt Code Label 5 0.2 1 Yes, obscured by solar glare 1 0.0 2 Yes, obscured by headlight glare 20 0.9 4 Yes, obscured by dark (nighttime) viewing conditions 1,960 85.8 5 No 222 9.7 7 Not applicable 50 2.2 8 Yes, obscured by other condition (specify) 26 1.1 9 Unknown LTCCS Codebook DriverAssessment Data Set • 66 Codebook - DriverAssessment Data Set Format Type LengthVariable Name ML748F Numeric 8 Definition: Establishes if this driver is required to stop prior to entering an intersection, initiating a StopRequired turn, or prior to the crash. N Prcnt Code Label 247 10.8 1 Yes, traffic control device (TCD) 203 8.9 2 Yes, other reason (specify) 76 3.3 3 Yes, yield right of way requirement 1,726 75.6 5 No 24 1.1 7 No driver present 8 0.4 9 Unknown Format Type Length Variable Name ML749F Numeric 8 TimeStopped Definition: Establishes the period of time the driver was stopped prior to entering an intersection, initiating a turn, or prior to the crash. N Prcnt Code Label 105 4.6 0 Traveling at constant velocity 130 5.7 1 Decelerated, did not stop 9 0.4 2 Rolling stop prior to proceeding 8 0.4 3 Stopped < 1 second prior to proceeding 13 0.6 4 Stopped 1-2 seconds prior to proceeding 18 0.8 5 Stopped 3-5 seconds prior to proceeding 132 5.8 6 Stopped more then 5 seconds prior to proceeding 24 1.1 7 No driver present 1,734 75.9 8 Not required to stop 111 4.9 9 Unknown Format Type Length Variable Name ML729F Numeric 8 Focused Definition: Documents the circumstance where the driver focuses on an extraneous location after initially checking for approaching traffic. N Prcnt Code Label 176 7.7 1 Yes (specify) 616 27.0 2 No 1,124 49.2 7 Not applicable 368 16.1 9 Unknown LTCCS Codebook DriverAssessment Data Set • 67 Codebook - DriverAssessment Data Set Format Type Length Variable Name AP1U Numeric 8 ADRWorkSchedule Definition: Establishes whether or not the driver’s sleep pattern is primarily related to his/her work schedule. (This variable was originally an attribute choice under the variable “Driver’s Hours of Main Sleep Related To.”) N Prcnt Code Label 838 36.7 0 Absent 1,446 63.3 1 Present Variable Name Format Type Length AP1U Numeric 8 SocialSchedule Definition: Establishes whether or not the driver’s sleep pattern is related to a social schedule. (This variable was originally an attribute choice under the variable “Driver’s Hours Of Main Sleep Related To.”) N Prcnt Code Label 2,137 93.6 0 Absent 147 6.4 1 Present Format Type Length Variable Name AP1U Numeric 8 PersonalProblems Definition: Establishes whether or not the driver’s sleep pattern is primarily related to a set of personal problems. (This variable was originally an attribute choice under the variable “Driver’s Hours Of Main Sleep Related To.”) N Prcnt Code Label 2,281 99.9 0 Absent 3 0.1 1 Present Variable Name Format Type Length AP1U Numeric 8 FamilyProblems Definition: Establishes whether or not the driver’s sleep pattern is related to problems of other family members or to interpersonal relationships between the driver and other family members. (This variable was originally an attribute choice under the variable “Driver’s Hours Of Main Sleep Related To.”) N Prcnt Code Label 2,278 99.7 0 Absent 6 0.3 1 Present LTCCS Codebook DriverAssessment Data Set • 68 Codebook - DriverAssessment Data Set Format Type Length Variable Name AP1U Numeric 8 Illness Definition: Establishes whether or not the driver’s sleep pattern is related to illness. The illness may involve either the driver or other family members. (This variable was originally an attribute choice under the variable “Driver’s Hours Of Main Sleep Related To.”) N Prcnt Code Label 2,273 99.5 0 Absent 11 0.5 1 Present Variable Name Format Type Length AP1U Numeric 8 NoDriverPresent Definition: Establishes whether or not there was a driver present in the driver’s seated position at the time of the crash. (This variable was originally an attribute choice under the variable “Driver’s Hours Of Main Sleep Related To.”) N Prcnt Code Label 2,259 98.9 0 Absent 25 1.1 1 Present Format Type Length Variable Name AP1U Numeric 8 ADROtherFactor Definition: Establishes whether or not the driver’s sleep pattern is related to a factor not described by the other sleep pattern variables. (This variable was originally an attribute choice under the variable “Driver’s Hours Of Main Sleep Related To” and was the “Other (specify):” attribute choice.) N Prcnt Code Label 2,234 97.8 0 Absent 50 2.2 1 Present Variable Name Format Type Length AP1U Numeric 8 UnknownFactor Definition: Establishes whether or not the driver’s sleep pattern was related to an unknown factor. (This variable was originally an attribute choice under the variable “Driver’s Hours Of Main Sleep Related To” and was the “Unknown” attribute choice.) N Prcnt Code Label 1,655 72.5 0 Absent 629 27.5 1 Present LTCCS Codebook DriverAssessment Data Set • 69 Codebook - DriverAssessment Data Set Format Type Length Variable Name ML869F Numeric 8 AlcoholUse Definition: Establishes the presence of alcohol for this driver. N Prcnt Code Label 2,040 89.3 0 No alcohol use 63 2.8 91 AC test performed, results positive 22 1.0 92 Field observation of NASS researcher 16 0.7 93 AC test performed, results negative 10 0.4 96 None given 82 3.6 97 AC test performed, results unknown 24 1.1 98 No driver present 27 1.2 99 Unknown Format Type Length Variable Name OT64F Numeric 8 AlcoholTest Definition: Records the results of an alcohol test (either blood alcohol test or Breathalyzer test) in percent times 100. N Prcnt Code Label 464 20.3 0 0 1 0.0 1 1 1 0.0 3 3 1 0.0 10 10 1 0.0 15 15 1 0.0 16 16 1 0.0 40 40 1 0.0 60 60 1 0.0 68 68 1 0.0 70 70 2 0.1 76 76 1 0.0 79 79 1 0.0 80 80 2 0.1 100 100 1 0.0 107 107 2 0.1 110 110 1 0.0 118 118 3 0.1 120 120 1 0.0 129 129 2 0.1 130 130 1 0.0 140 140 2 0.1 150 150 1 0.0 160 160 LTCCS Codebook DriverAssessment Data Set • 70 Codebook - DriverAssessment Data Set N Prcnt Code Label 3 0.1 170 170 1 0.0 180 180 1 0.0 190 190 1 0.0 193 193 1 0.0 198 198 1 0.0 200 200 4 0.2 210 210 3 0.1 220 220 1 0.0 221 221 1 0.0 223 223 1 0.0 228 228 3 0.1 230 230 1 0.0 240 240 1 0.0 252 252 1 0.0 254 254 1 0.0 264 264 1 0.0 280 280 1 0.0 290 290 1 0.0 292 292 2 0.1 320 320 1 0.0 321 321 1 0.0 350 350 1 0.0 362 362 1 0.0 369 369 24 1.1 8887 No driver present 1,593 69.7 9998 None 140 6.1 9999 Unknown Variable Name Format Type Length ML3451F Numeric 8 TestSource Definition: Documents the source of the BAC test results. N Prcnt Code Label 1,559 68.3 0 No BAC test/Not applicable 215 9.4 1 Police reported 84 3.7 2 Company reported 24 1.1 6 No driver present 377 16.5 8 Other (specify) 25 1.1 9 Unknown LTCCS Codebook DriverAssessment Data Set • 71 Codebook - DriverAssessment Data Set Format Type Length Variable Name $OT65F Char 5 TestDelay Definition: Documents the time delay between the crash and the time the BAC test is administered. N Prcnt Code Label 9 0.4 * 00:00 1 0.0 * 00:25 1 0.0 * 00:28 1 0.0 * 00:29 2 0.1 * 00:30 1 0.0 * 00:31 1 0.0 * 00:33 2 0.1 * 00:36 1 0.0 * 00:37 1 0.0 * 00:39 ------------------------------ 1 0.0 * 39:14 1 0.0 * 47:10 1 0.0 * 55:00 1 0.0 * 58:48 1 0.0 * 68:12 1 0.0 * 68:30 1 0.0 * 70:30 24 1.1 97:97 No driver present 1,632 71.5 98:98 No BAC Test 325 14.2 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name ML870F Numeric 8 ADRDrugTest Definition: Documents the administration of a drug test for this driver. N Prcnt Code Label 575 25.2 0 No drug use 267 11.7 5 Test performed, results negative 86 3.8 91 Test performed, results positive 1,207 52.8 96 None given 81 3.5 97 Test performed, results unknown 24 1.1 98 No driver present 44 1.9 99 Unknown LTCCS Codebook DriverAssessment Data Set • 72 Codebook - DriverAssessment Data Set Format Type Length Variable Name ML662F Numeric 8 Fatigue Definition: Assesses driver fatigue at the time of the crash. The assessment is based on an evaluation of the driver’s current and preceding sleep schedules, current and preceding work schedules, and a variety of other fatigue-related factors including recreational and non-work activities. N Prcnt Code Label 1,374 60.2 0 Driver not fatigued 216 9.5 1 Driver fatigued 24 1.1 8 No driver present 670 29.3 9 Unknown if driver fatigued Variable Name Format Type Length ML752F Numeric 8 Upset Definition: Establishes whether or not the driver was upset prior to the crash and the specific reason for this emotional state. N Prcnt Code Label 1,543 67.6 0 Not upset 8 0.4 1 Preceding argument with spouse 4 0.2 2 Preceding argument with other family member 12 0.5 3 Preceding argument with other individual (specify) 7 0.3 4 Related to financial problems 9 0.4 5 Related to family problems 24 1.1 7 No driver present 17 0.7 8 Other source (specify) 660 28.9 9 Unknown Variable Name Format Type Length ML732F Numeric 8 Hurrying Definition: Establishes if the driver was in a hurry prior to crash occurrence. Assessments of this type are reflected in the driver’s precrash driving behavior (e.g. speeding, sudden starts/stops, weaving in and out of traffic, etc.) N Prcnt Code Label 1,523 66.7 0 Not in a hurry 21 0.9 1 Due to work-related schedule 4 0.2 2 Late for business appointment 5 0.2 3 Late for social appointment 13 0.6 4 Late for start of work shift/start of school classes 3 0.1 5 Normal driving pattern 24 1.1 7 No driver present LTCCS Codebook DriverAssessment Data Set • 73 Codebook - DriverAssessment Data Set N Prcnt Code Label 24 1.1 8 Other reason (specify) 667 29.2 9 Unknown Variable Name Format Type Length Emotional ML865F Numeric 8 Definition: Establishes if there were other emotional factors relevant to this driver’s precrash behavior. N Prcnt Code Label 1,556 68.1 0 No other emotional factors 18 0.8 1 Driver clinically depressed 9 0.4 2 Driver has a diagnosed psychosis (specify) 24 1.1 7 No driver present 23 1.0 8 Other factors (specify) 654 28.6 9 Unknown Variable Name Format Type Length ML753F Numeric 8 KnewVehicle Definition: Establishes driver familiarity with the vehicle being operated at the time of the crash. N Prcnt Code Label 50 2.2 1 First time driving this vehicle 62 2.7 2 Had driven this vehicle 2-5 times in the past six months 40 1.8 3 Had driven this vehicle 6-10 times in the past six months 1,387 60.7 4 Had driven this vehicle more than 10 times in the past six months 24 1.1 7 No driver present 721 31.6 9 Unknown Variable Name Format Type Length ML747F Numeric 8 KnewRoad Definition: Establishes the driver’s familiarity with the approach to the crash site. N Prcnt Code Label 111 4.9 1 First time driving on this roadway 196 8.6 2 Rarely drives on this roadway 151 6.6 3 Drives on this roadway once per month 105 4.6 4 Drives on this roadway several times per month 421 18.4 5 Drives on this roadway weekly 632 27.7 6 Drives on this roadway daily 24 1.1 7 No driver present LTCCS Codebook DriverAssessment Data Set • 74 Codebook - DriverAssessment Data Set N Prcnt Code Label 57 2.5 8 Other frequency (specify) 587 25.7 9 Unknown Variable Name Format Type Length WorkPressureCount AP3U Numeric 8 Definition: A count of the number of work pressure variables. This includes attributes from the original variable “Driver Under Work-Related Pressure,” which were broken out into individual variables. N Prcnt Code Label 1,512 66.2 0 0 104 4.6 1 1 14 0.6 2 2 24 1.1 7 7 630 27.6 99 Unknown Variable Name Format Type Length AP1U Numeric 8 NewPosition Definition: Establishes whether or not the driver was under pressure from his/her employer as a result of learning a new position in his/her primary work place. (This variable was originally an attribute choice under the variable “Driver Under Work-Related Pressure.”) N Prcnt Code Label 2,266 99.2 0 Absent 18 0.8 1 Present Format Type Length Variable Name AP1U Numeric 8 ShippingDeadline Definition: Establishes whether or not the driver experienced work pressure as a result of being under time-related pressures associated with production/shipping deadlines. (This variable was originally an attribute under the variable “Driver Under Work-Related Pressure.”) N Prcnt Code Label 2,280 99.8 0 Absent 4 0.2 1 Present LTCCS Codebook DriverAssessment Data Set • 75 Codebook - DriverAssessment Data Set Format Type Length Variable Name AP1U Numeric 8 EXPWorkSchedule Definition: Establishes whether or not the driver was experiencing any pressure on the job as it relates to his/her work schedule. (This variable was originally an attribute choice under the variable “Driver Under Work-Related Pressure.”) N Prcnt Code Label 2,257 98.8 0 Absent 27 1.2 1 Present Variable Name Format Type Length AP1U Numeric 8 Quotas Definition: Establishes whether or not the driver experienced any work pressure with regard to additional production or sales requirements. (This variable was originally an attribute choice under the variable “Driver Under Work-Related Pressure.”) N Prcnt Code Label 2,283 100.0 0 Absent 1 0.0 1 Present Format Type Length Variable Name AP1U Numeric 8 ExtraLoads Definition: Establishes whether or not the driver was under pressure from his/her employer to accept loads with little or no advance notice. (This variable was originally an attribute choice under the variable “Driver Under Work-Related Pressure.) N Prcnt Code Label 2,275 99.6 0 Absent 9 0.4 1 Present Variable Name Format Type Length AP1U Numeric 8 Demoted Definition: Establishes whether or not the driver had recently been forced to accept a demotion and/or pay decrease. (This variable was originally an attribute choice under the variable “Driver Under Work-Related Pressure.”) N Prcnt Code Label 2,283 100.0 0 Absent 1 0.0 1 Present LTCCS Codebook DriverAssessment Data Set • 76 Codebook - DriverAssessment Data Set Format Type LengthVariable Name AP1U Numeric 8 SelfInducedIllegal Definition: Establishes whether or not the driver experienced self-induced work pressure, as opposed to employer-induced pressure. The driver was pressuring himself to do things that are considered illegal (e.g. a truck driver continuing to drive even though he knows he is over his allowed driving hours). (This variable was originally an attribute choice under the variable “Work-Related Pressure” in the electronic data system, but was not found on the paper version of the Crash Event Assessment Form.) N Prcnt Code Label 2,272 99.5 0 Absent 12 0.5 1 Present Format Type Length Variable Name AP1U Numeric 8 SelfInducedOther Definition: Establishes whether or not the driver experienced self-induced work pressure, as opposed to employer-induced pressure. (This variable was originally an attribute choice under the variable “Work-Related Pressure” in the electronic data system, but was not found on the paper version of the Crash Event Assessment Form.) N Prcnt Code Label 2,246 98.3 0 Absent 38 1.7 1 Present Format Type Length Variable Name AP1U Numeric 8 OtherPressure Definition: Establishes whether or not the driver experienced any work-related pressure that was not captured under other work-pressure variables. (This variable was originally an attribute choice under the variable “Driver Under Work-Related Pressure” and was the “Other (specify)” attribute choice). N Prcnt Code Label 2,262 99.0 0 Absent 22 1.0 1 Present Variable Name Format Type Length AP2U Numeric 8 ComfortCount Definition: Establishes the total number of attributes coded for the variable “Other Factor Types,” which had to do with a driver’s comfort with traffic conditions and the vehicle. N Prcnt Code Label 1,558 68.2 0 0 69 3.0 1 1 3 0.1 2 2 LTCCS Codebook DriverAssessment Data Set • 77 Codebook - DriverAssessment Data Set N Prcnt Code Label 24 1.1 7 No Driver Present 630 27.6 9 Unknown Variable Name Format Type Length TrafficDensity AP1U Numeric 8 Definition: Establishes whether or not the driver was uncomfortable with the surrounding traffic densities. The densities are usually very high as might be associated with rush hour traffic. (This variable was originally an attribute choice under the variable “Other Factor Types,” which had to do with driver experience.) N Prcnt Code Label 2,279 99.8 0 Absent 5 0.2 1 Present Format Type LengthVariable Name AP1U Numeric 8 TrafficSpeed Definition: Establishes whether or not the driver was uncomfortable with the general speed of surrounding traffic. The discomfort is typically associated with the driver feeling that surrounding traffic is moving too fast. (This variable was originally an attribute choice under the variable “Other Factor Types,” which had to do with driver experience.) N Prcnt Code Label 2,283 100.0 0 Absent 1 0.0 1 Present Format Type LengthVariable Name AP1U Numeric 8 ADRTrafficFlow Definition: Establishes whether or not the driver was uncomfortable with the general flow of surrounding traffic. (This variable was originally an attribute choice under the variable “Other Factor Types,” which had to do with driver experience.) N Prcnt Code Label 2,283 100.0 0 Absent 1 0.0 1 Present LTCCS Codebook DriverAssessment Data Set • 78 Codebook - DriverAssessment Data Set Format Type Length Variable Name AP1U Numeric 8 VehicleLoad Definition: Establishes whether or not the driver was uncomfortable with either the vehicle or the load. (This variable was originally an attribute choice under the variable “Other Factor Types,” which had to do with driver experience.) N Prcnt Code Label 2,247 98.4 0 Absent 37 1.6 1 Present Variable Name Format Type Length AP1U Numeric 8 OtherComfortFactor Definition: Establishes whether or not the driver had an “other” experience/exposure factor that was relevant to the crash that was not described by the other comfort variables. (This variable was originally an attribute choice under the variable “Other Factor Types,” was was the “Other (specify)” attribute choice.) N Prcnt Code Label 2,253 98.6 0 Absent 31 1.4 1 Present Variable Name Format Type Length ML736F Numeric 8 LoadPressure Definition: Documents the circumstance where the driver is under some pressure from the carrier to accept additional loads. N Prcnt Code Label 1,007 44.1 0 Not under pressure to accept loads 1 0.0 1 Accept unscheduled loads on scheduled trip 2 0.1 2 Accept additional loads on unscheduled trip 2 0.1 3 Accept unscheduled loads on short notice scheduled trip 12 0.5 4 Accept additional loads when over allowable driving hours 1,018 44.6 7 Not applicable 23 1.0 8 Other load factors (specify) 219 9.6 9 Unknown LTCCS Codebook DriverAssessment Data Set • 79 Codebook - DriverAssessment Data Set Format Type Length Variable Name AP4U Numeric 8 WorkFatigueCount Definition: A count of the number of work fatigue-related variables. This includes attributes from the original variable “Under Pressure to Operate Even if Fatigued,” which were broken out into individual variables. N Prcnt Code Label 1,016 44.5 0 0 35 1.5 1 1 2 0.1 2 2 1,007 44.1 7 Not applicable 224 9.8 9 Unknown Variable Name Format Type Length AP1U Numeric 8 ScheduledExtensions Definition: Establishes whether or not the driver experienced work pressure due to his/her carrier scheduling trips in a manner that requires extended work shifts to complete. (This variable was originally an attribute under the variable “Under Pressure to Operate Even if Fatigued.”) N Prcnt Code Label 2,272 99.5 0 Absent 12 0.5 1 Present Format Type LengthVariable Name AP1U Numeric 8 RotatingShift Definition: Establishes whether or not the driver experienced work pressure due to his/her carrier scheduling trips in a manner that requires the driver to work rotating shift schedules with an associated rotating sleep pattern. (This variable was originally an attribute choice under the variable “Under Pressure to Operate Even if Fatigued.”) N Prcnt Code Label 2,281 99.9 0 Absent 3 0.1 1 Present LTCCS Codebook DriverAssessment Data Set • 80 Codebook - DriverAssessment Data Set Format Type Length Variable Name AP1U Numeric 8 UnscheduledExtensions Definition: Establishes whether or not the driver experienced work pressure due to his/her carrier pressing the driver to accept unscheduled loads/trips that require the driver to operate while fatigued. (This variable was originally an attribute under the variable “Under Pressure to Operate Even if Fatigued.”) N Prcnt Code Label 2,277 99.7 0 Absent 7 0.3 1 Present Format Type LengthVariable Name AP1U Numeric 8 NoApplicableFatigue Definition: Originally an attribute choice under the variable “Under Pressure to Operate Even if Fatigued” (a carrier-related variable). N Prcnt Code Label 1,277 55.9 0 Absent 1,007 44.1 1 Present Format Type LengthVariable Name AP1U Numeric 8 OtherFatigue Definition: Establishes whether or not the driver experienced any pressure by the carrier to operate even if fatigued when that pressure did not fit under other fatigue variables. (This variable was originally an attribute choice under the variable “Under Pressure to Operate Even If Fatigued” and was the “Other (specify)” attribute choice.) N Prcnt Code Label 2,267 99.3 0 Absent 17 0.7 1 Present Format Type Length Variable Name AP4U Numeric 8 OtherPressureCount Definition: Establishes the number of “other” pressures specified in the “Other Work Pressure” variable. N Prcnt Code Label 1,004 44.0 0 0 47 2.1 1 1 5 0.2 2 2 1,009 44.2 7 Not applicable 219 9.6 9 Unknown LTCCS Codebook DriverAssessment Data Set • 81 Codebook - DriverAssessment Data Set Format Type LengthVariable Name AP1U Numeric 8 Definition: Establishes whether or not the driver was required by his/her carrier to accept short notice trips. (This variable was originally an attribute choice under variable “Other Relation Factor ShortNoticeTrips Types.”) N Prcnt Code Label 2,268 99.3 0 Absent 16 0.7 1 Present Variable Name Format Type Length AP1U Numeric 8 FillInTrips Definition: Establishes whether or not the driver was under pressure by his/her carrier to fill in for other drivers (i.e. perform extra work) when other drivers are absent. N Prcnt Code Label 2,278 99.7 0 Absent 6 0.3 1 Present Format Type LengthVariable Name AP1U Numeric 8 UnpaidLoading Definition: Establishes whether or not the driver was required by his/her carrier to complete uncompensated loading/unloading activities. (This variable was originally an attribute choice under variable “Other Relation Factor Types.”) N Prcnt Code Label 2,274 99.6 0 Absent 10 0.4 1 Present Variable Name Format Type Length AP1U Numeric 8 VariableCompensation Definition: Establishes whether or not the driver is compensated in accordance with a variable compensation package such that the driver is not paid on a consistent basis. (This variable was originally an attribute choice under variable “Other Relation Factor Types.”) N Prcnt Code Label 2,284 100.0 0 Absent LTCCS Codebook DriverAssessment Data Set • 82 Codebook - DriverAssessment Data Set Format Type LengthVariable Name AP1U Numeric 8 Definition: Originally an attribute choice under the variable “Other Relation Factor Types” (a NoApplicableRelations carrier-related variable). N Prcnt Code Label 1,275 55.8 0 Absent 1,009 44.2 1 Present Variable Name Format Type Length AP1U Numeric 8 OtherRelations Definition: Establishes whether or not there were other carrier relation factors not captured in other carrier relation variables that may have had a bearing on crash occurrence. (This variable was originally an attribute choice under the variable “Other Relation Factor Types,” and was the “Other (specify)” attribute choice). N Prcnt Code Label 2,259 98.9 0 Absent 25 1.1 1 Present LTCCS Codebook DriverAssessment Data Set • 83 Codebook - DriverDecisionAggression Data Set DriverDecisionAggression Data Set The DriverDecisionAggression data set contains a variety of data supporting the analyst’s assessment. It focuses particularly on the driver’s decisions and aggressive behavior. One record of this information exists for each vehicle/driver. The DriverDecisionAggression data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the DriverDecisionAggression data set with other vehicle level data sets. Format Type Length Variable Name ML727F Numeric 8 Speeding Definition: Documents reasons given by the driver for traveling at his/her pre-crash travel speed. This variable is only relevant in the circumstance where the driver had been assessed as traveling too fast for conditions. N Prcnt Code Label 1,726 75.6 0 No traveling too fast factors 19 0.8 1 Keeping up with traffic 131 5.7 2 Did not realize caution required 194 8.5 3 Other reason (specify) 24 1.1 7 No driver present 190 8.3 9 Unknown Format Type Length Variable Name ML720F Numeric 8 Tailgating Definition: Documents reasons given by the driver for traveling with less than the recommended gap interval to traffic forward of the driver’s position. N Prcnt Code Label 2,080 91.1 0 No following too closely factors 17 0.7 1 Rush hour, heavy traffic 12 0.5 2 Keeping up with traffic 29 1.3 3 Did not realize too close 5 0.2 4 Always drive at this gap distance 24 1.1 7 No driver present 22 1.0 8 Other (specify) 95 4.2 9 Unknown LTCCS Codebook DriverDecisionAggression Data Set • 84 Codebook - DriverDecisionAggression Data Set Format Type Length Variable Name ML863F Numeric 8 Misjudgment Definition: Documents the involvement of a decision error in which the subject driver either misjudges the gap distance to the other vehicle or misjudges the velocity of the other vehicle. N Prcnt Code Label 2,061 90.2 0 No misjudgment factors 18 0.8 1 Misjudgment of gap distance 33 1.4 2 Misjudgment of velocity of other vehicle 25 1.1 3 Misjudgment of both factors 24 1.1 7 No driver present 123 5.4 9 Unknown Format Type Length Variable Name ML864F Numeric 8 Approach Definition: Establishes the direction from which the misjudged vehicle was approaching this driver’s position. N Prcnt Code Label 2,060 90.2 0 No misjudgment factors 9 0.4 1 Left 5 0.2 2 Right 67 2.9 3 Forward direction (i.e. 170-190 degrees opposed) 2 0.1 4 Left forward direction (i.e. 120-169 degrees opposed) 3 0.1 5 Right forward direction (i.e. 191-240 degrees opposed) 15 0.7 6 Rear 24 1.1 7 No driver present 99 4.3 9 Unknown Format Type Length Variable Name OT14F Numeric 8 ADATravelSpeed Definition: Documents the travel speed of this driver as reported on the police report (kph). N Prcnt Code Label 220 9.6 0 0 1 0.0 5 5 15 0.7 8 8 4 0.2 11 11 2 0.1 13 13 27 1.2 16 16 1 0.0 19 19 1 0.0 20 20 LTCCS Codebook DriverDecisionAggression Data Set • 85 Codebook - DriverDecisionAggression Data Set N Prcnt Code Label 1 0.0 22 22 1 0.0 23 23 ------------------------------ 1 0.0 126 126 5 0.2 129 129 1 0.0 137 137 1 0.0 145 145 1 0.0 153 153 1 0.0 156 156 1 0.0 161 161 1 0.0 177 177 1 0.0 241 241 1,406 61.6 9999 Unknown Variable Name Format Type Length OT14F Numeric 8 ADAPostedSpeed Definition: Establishes the pre-crash roadway’s posted speed limit (kph). N Prcnt Code Label 6 0.3 0 0 1 0.0 16 16 4 0.2 24 24 4 0.2 32 32 44 1.9 40 40 58 2.5 48 48 174 7.6 56 56 135 5.9 64 64 278 12.2 72 72 163 7.1 80 80 694 30.4 89 89 236 10.3 97 97 344 15.1 105 105 99 4.3 113 113 31 1.4 121 121 13 0.6 9999 Unknown LTCCS Codebook DriverDecisionAggression Data Set • 86 Codebook - DriverDecisionAggression Data Set Format Type Length Variable Name ML724F Numeric 8 Assumption Definition: Identifies false assumptions on the part of this driver with respect to other driver’s actions or intended actions. N Prcnt Code Label 1,959 85.8 0 No false assumption factors 1 0.0 1 Assumed that other driver would merge without stopping 2 0.1 2 Assumed that other driver would turn without stopping 24 1.1 3 Assumed that other driver would continue to proceed 37 1.6 4 Assumed that other driver would yield right-of-way 24 1.1 7 No driver present 19 0.8 8 Other false assumption (specify) 218 9.5 9 Unknown Format Type Length Variable Name ML723F Numeric 8 Evasion Definition: Establishes inadequate evasive actions on the part of this driver. This variable does not deal with legal requirements and the final assessment may be subjective. N Prcnt Code Label 2,044 89.5 0 No inadequate evasive action factors 26 1.1 1 Insufficient steering inputs 23 1.0 2 Insufficient braking inputs 40 1.8 3 Combination of insufficient steering and braking inputs 24 1.1 4 No driver present 33 1.4 8 Other inadequate evasive action (specify) 94 4.1 9 Unknown Format Type Length Variable Name ML739F Numeric 8 ADAOtherFactor Definition: Establishes decision factors relevant to this crash that are not described in the other decision variables. N Prcnt Code Label 1,923 84.2 0 No other decision factors 3 0.1 1 Crossed with obstructed view 3 0.1 2 Turned with obstructed view 4 0.2 3 Stopped when not required 25 1.1 4 Proceeded with insufficient clearance 2 0.1 5 Turned without signaling 24 1.1 7 No driver present LTCCS Codebook DriverDecisionAggression Data Set • 87 Codebook - DriverDecisionAggression Data Set N Prcnt Code Label 112 4.9 8 Other decision error (specify) 188 8.2 9 Unknown Variable Name Format Type Length AP2U Numeric 8 ManeuverCount Definition: Establishes the total number of illegal maneuvers conducted by this driver. N Prcnt Code Label 2,014 88.2 0 0 188 8.2 1 1 4 0.2 2 2 23 1.0 7 No Driver Present 55 2.4 9 Unknown Variable Name Format Type Length AP1U Numeric 8 CrossedLine Definition: Documents whether or not the driver crosses full barrier lines to execute, or while executing, a passing maneuver. (This variable was originally an attribute choice under the variable “Illegal Maneuver.”) N Prcnt Code Label 2,279 99.8 0 Absent 5 0.2 1 Present Format Type LengthVariable Name AP1U Numeric 8 Undertaking Definition: Documents whether or not the driver drives off the travel lane(s) to pass on the right (i.e. driver moves on to shoulder area to execute the passing maneuver). (This variable was originally an attribute choice under the variable “Illegal Maneuver.”) N Prcnt Code Label 2,280 99.8 0 Absent 4 0.2 1 Present LTCCS Codebook DriverDecisionAggression Data Set • 88 Codebook - DriverDecisionAggression Data Set Format Type LengthVariable Name AP1U Numeric 8 WrongTurnLane Definition: Documents whether or not the driver executes a turn from the wrong lane (i.e. driver turns left from the right lane or turns right from the left lane of a multi-lane roadway). (This variable was originally an attribute choice under the variable “Illegal Maneuver.”) N Prcnt Code Label 2,274 99.6 0 Absent 10 0.4 1 Present Variable Name Format Type Length AP1U Numeric 8 IllegalUTurn Definition: Documents whether or not the driver initiates a U-turn in an area where these turns are not permitted. (This variable was originally an attribute choice under the variable “Illegal Maneuver.”) N Prcnt Code Label 2,279 99.8 0 Absent 5 0.2 1 Present Format Type LengthVariable Name AP1U Numeric 8 RanLights Definition: Documents whether or not the driver does not stop for a displayed red traffic signal phase or does not stop for a stop sign. (This variable was originally an attribute choice under the variable “Illegal Maneuver.”) N Prcnt Code Label 2,202 96.4 0 Absent 82 3.6 1 Present Variable Name Format Type Length AP1U Numeric 8 WrongWay Definition: Documents whether or not the driver travels the wrong way on a one-way roadway. (This variable was originally an attribute choice under the variable “Illegal Maneuver.”) N Prcnt Code Label 2,276 99.6 0 Absent 8 0.4 1 Present LTCCS Codebook DriverDecisionAggression Data Set • 89 Codebook - DriverDecisionAggression Data Set Variable Name Format Type Length OtherManeuver AP1U Numeric 8 Definition: Documents whether or not the driver initiates an illegal maneuver that is not described in the other illegal maneuver variables. (This variable was originally an attribute choice under the variable “Illegal Maneuver” and was the “Other Illegal Maneuver (specify):” attribute.) N Prcnt Code Label 2,202 96.4 0 Absent 82 3.6 1 Present Variable Name Format Type Length AP3U Numeric 8 AggressionCount Definition: Establishes the total number of aggressive behaviors exhibited by this driver. N Prcnt Code Label 1,985 86.9 0 0 119 5.2 1 1 28 1.2 2 2 1 0.0 3 3 24 1.1 77 No Driver Present 127 5.6 99 Unknown Variable Name Format Type Length AP1U Numeric 8 SpeedingBehavior Definition: Documents whether or not the driver exhibited aggressive behavior in terms of exceeding the speed limit by a minimum of 5 MPH (8.05 kmph) and the vehicle’s speed has a bearing on subsequent crash events. A degree of caution is required when assigning this element. Specifically, to be considered as a valid aggressive driving element, the act of speeding should pose some risk to surrounding traffic. If, for example, the driver is speeding in a stream of traffic, this act poses a risk to surrounding traffic. On the other hand, a driver who is speeding late at night, on a rural highway with no surrounding traffic, does not pose a risk to others and should not be considered as driving aggressively. (This variable was originally an attribute choice under the variable “Aggressive Driving Behavior.”) N Prcnt Code Label 2,170 95.0 0 Absent 114 5.0 1 Present LTCCS Codebook DriverDecisionAggression Data Set • 90 Codebook - DriverDecisionAggression Data Set Format Type LengthVariable Name AP1U Numeric 8 TailgatingBehavior Definition: Documents whether or not the driver exhibited aggressive behavior in terms of traveling in close proximity to a vehicle forward of his/her position. While the exact gap interval that qualifies for this assignment will vary with the velocity of the traffic stream, the interval should be sufficiently small/short to preclude the following vehicle/driver from executing a safe stop in an emergency stop circumstance. (This variable was originally an attribute choice under the variable “Aggressive Driving Behavior.”) N Prcnt Code Label 2,277 99.7 0 Absent 7 0.3 1 Present Format Type Length Variable Name AP1U Numeric 8 Weaving Definition: Documents whether or not the driver exhibited aggressive behavior in terms of weaving in and out of traffic to pass slower-moving vehicles. While drivers engaging in this activity typically exceed the speed limit, speeding is not required for valid use of this element. (This variable was originally an attribute choice under the variable “Aggressive Driving Behavior.”) N Prcnt Code Label 2,263 99.1 0 Absent 21 0.9 1 Present Format Type LengthVariable Name AP1U Numeric 8 LightViolations Definition: Documents whether or not the driver exhibited aggressive behavior in terms of violating a displayed red signal phase or stop sign. Deliberate violation of a yield sign is captured under the “Other Aggressive Behavior” variable. (This variable was originally an attribute choice under the variable “Aggressive Driving Behavior.”) N Prcnt Code Label 2,269 99.3 0 Absent 15 0.7 1 Present LTCCS Codebook DriverDecisionAggression Data Set • 91 Codebook - DriverDecisionAggression Data Set Format Type LengthVariable Name AP1U Numeric 8 RapidAcceleration Definition: Documents whether or not the driver exhibited aggressive behavior in terms of engaging in these activities in a repeating fashion (i.e. braking late for a TCD and then accelerating rapidly away from that location and repeating this behavior at the next TCD). This behavior pattern is often associated with being in a hurry or being late for some engagement. (This variable was originally an attribute choice under the variable “Aggressive Driving Behavior.”) N Prcnt Code Label 2,279 99.8 0 Absent 5 0.2 1 Present Format Type LengthVariable Name AP1U Numeric 8 Honking Definition: Documents whether or not the driver exhibited aggressive behavior in terms of repeatedly honking the vehicle’s horn at surrounding traffic to gain a time/space advantage. (This variable was originally an attribute choice under the variable “Aggressive Driving Behavior.”) N Prcnt Code Label 2,283 100.0 0 Absent 1 0.0 1 Present Variable Name Format Type Length AP1U Numeric 8 Flashing Definition: Documents whether or not the driver exhibited aggressive behavior in terms of repeatedly flashing the vehicle’s lights in an attempt to have traffic forward of this vehicle’s position move either to the right or left so that this vehicle can “get by.” (This variable was originally an attribute choice under the variable “Aggressive Driving Behavior.”) N Prcnt Code Label 2,283 100.0 0 Absent 1 0.0 1 Present Format Type Length Variable Name AP1U Numeric 8 ObsceneGestures Definition: Documents whether or not the driver exhibited aggressive behavior in terms of making obscene gestures at other drivers. (This variable was originally an attribute choice under the variable “Aggressive Driving Behavior.”) N Prcnt Code Label 2,284 100.0 0 Absent LTCCS Codebook DriverDecisionAggression Data Set • 92 Codebook - DriverDecisionAggression Data Set Format Type LengthVariable Name AP1U Numeric 8 BlockingOthers Definition: Documents whether or not the driver exhibited aggressive behavior in terms of using his/her vehicle to physically obstruct the path of another vehicle by pulling in front of that vehicle. In addition to physically blocking the path, the subject driver typically slows to force the other driver to take evasive action (e.g. steering, and/or braking actions). (This variable was originally an attribute choice under the variable “Aggressive Driving Behavior.”) N Prcnt Code Label 2,281 99.9 0 Absent 3 0.1 1 Present Format Type LengthVariable Name AP1U Numeric 8 OtherAggression Definition: Documents whether or not the driver exhibited aggressive behavior that is not described by the other aggressive driving behavior variables. (This variable was originally an attribute choice under the variable “Aggressive Driving Behavior” and was the “Other (specify)” attribute choice.) N Prcnt Code Label 2,273 99.5 0 Absent 11 0.5 1 Present Variable Name Format Type Length ML2477F Numeric 8 AggressionReason Definition: Establishes the reason for the aggressive driving behaviors reported in the corresponding variables. N Prcnt Code Label 1,985 86.9 0 No aggressive driving behaviors 6 0.3 1 Anger 2 0.1 2 Frustration 10 0.4 3 Always drive this way 24 1.1 77 No driver present 19 0.8 88 Other (specify) 238 10.4 99 Unknown LTCCS Codebook DriverDecisionAggression Data Set • 93 Codebook - DriverDrugs Data Set DriverDrugs Data Set The DriverDrugs data set contains information supporting the analyst’s assessment on the driver’s use of any drug prior to the crash. One record of this information exists for each drug. The DriverDrugs data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID, VehicleNumber and DrugName uniquely identify each record in this data set. CaseID and VehicleNumber should be used to merge the DriverDrugs data set with vehicle level data sets. Format Type Length Variable Name OT15F Numeric 8 DrugType Definition: Establishes the type of drug specified in the Drug Name variable. N Prcnt Code Label 994 68.2 1 Prescription 361 24.8 2 Over the counter 103 7.1 3 Illegal Format Type Length Variable Name $50 Char 50 DrugName Definition: Name of drug(s) used – includes illegal drugs, over-the-counter drugs, and prescription drugs. N Prcnt Code Label 1 0.1 * Accolate 5 0.3 * Accupril 3 0.2 * Accupril-BP 2 0.1 * Acetaminophen/ Codeine 3 0.2 * Aciphex 2 0.1 * Actifed 6 0.4 * Actos 1 0.1 * Adalat CC 1 0.1 * Advair 28 1.9 * Advil ------------------------------ 1 0.1 * Zestoretic 9 0.6 * Zestril 5 0.3 * Ziac 2 0.1 * Zithromax 13 0.9 * Zocor 15 1.0 * Zoloft 1 0.1 * Zovirax 2 0.1 * Zyban LTCCS Codebook DriverDrugs Data Set • 94 Codebook - DriverDrugs Data Set N Prcnt Code Label 1 0.1 * Zyprexa 11 0.8 * Zyrtec Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length OT16F Numeric 8 DriverReported Definition: Establishes whether or not the drug usage was reported by the driver. N Prcnt Code Label 951 65.2 1 No 507 34.8 2 Yes Variable Name TestResult Format OT63F Type Numeric Length 8 Definition: Documents the results of drug tests performed on the driver. N Prcnt Code Label 1 0.1 0.03 0.03 1 0.1 0.05 0.05 1 0.1 0.09 0.09 1 0.1 0.38 0.38 1 0.1 0.45 0.45 1 0.1 0.76 0.76 1 0.1 0.83 0.83 1 0.1 8 8 1 0.1 34 34 2 0.1 50 50 1 0.1 90 90 1 0.1 106 106 1 0.1 550 550 1 0.1 99995 None given 1,353 92.8 99996 Legal Drug, Test Results Not Collected 35 2.4 99997 Drug Test Positive, Measured Value Unknown 55 3.8 99999 Unknown LTCCS Codebook DriverDrugs Data Set • 95 Codebook - DriverHealth Data Set DriverHealth Data Set The DriverHealth data set contains a variety of data supporting the analyst’s assessment. It focuses particularly on the area of driver health. One record of this information exists for each vehicle/driver. The DriverHealth data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the DriverHealth data set with other vehicle level data sets. Format Type Length Variable Name OT18F Numeric 8 ADHCorrectedVision Definition: Documents the driver’s corrected vision level. N Prcnt Code Label 5 0.2 2015 2015 252 11.0 2020 2020 1 0.0 2025 2025 12 0.5 2030 2030 8 0.4 2040 2040 1 0.0 2045 2045 3 0.1 2060 2060 1 0.0 2738 2738 1 0.0 3025 3025 1 0.0 4030 4030 1 0.0 5030 5030 29 1.3 9797 No Test Given 7 0.3 9898 Not Applicable 1,962 85.9 9999 Unknown Format Type Length Variable Name AP2U Numeric 8 IllnessFactorCount Definition: Documents the number of illness factors coded for this driver. N Prcnt Code Label 1,670 73.1 0 0 68 3.0 1 1 1 0.0 2 2 24 1.1 7 No Driver Present 521 22.8 9 Unknown LTCCS Codebook DriverHealth Data Set • 96 Codebook - DriverHealth Data Set Format Type Length Variable Name AP1U Numeric 8 HeartAttack Definition: Establishes whether or not the driver experienced a heart attack prior to the crash event. (This variable was originally an attribute choice under the variable “Illness.”) N Prcnt Code Label 2,272 99.5 0 Absent 12 0.5 1 Present Variable Name Format Type Length AP1U Numeric 8 EpilepticSeizure Definition: Establishes whether or not the driver experienced an epileptic seizure prior to the crash event. (This variable was originally an attribute choice under the variable “Illness.”) N Prcnt Code Label 2,282 99.9 0 Absent 2 0.1 1 Present Format Type Length Variable Name AP1U Numeric 8 OtherSeizure Definition: Establishes whether or not the driver experienced a seizure prior to the crash event that was not related to epilepsy. (This variable was originally an attribute choice under the variable “Illness.”) N Prcnt Code Label 2,280 99.8 0 Absent 4 0.2 1 Present Variable Name Format Type Length AP1U Numeric 8 DiabeticBlackout Definition: Establishes whether or not the driver experienced a blackout prior to the crash event and that this event can be traced to a medically diagnosed diabetic condition (e.g. driver blacks out as a result of insulin shock). (This variable was originally an attribute choice under the variable “Illness.”) N Prcnt Code Label 2,279 99.8 0 Absent 5 0.2 1 Present LTCCS Codebook DriverHealth Data Set • 97 Codebook - DriverHealth Data Set Format Type Length Variable Name AP1U Numeric 8 OtherBlackout Definition: Establishes whether or not the driver experienced a blackout prior to the crash event and that this event is not related to a diabetic condition. (This variable was originally an attribute choice under the variable “Illness.”) N Prcnt Code Label 2,277 99.7 0 Absent 7 0.3 1 Present Variable Name Format Type Length AP1U Numeric 8 ColdFlu Definition: Establishes whether or not the driver is operating the vehicle while experiencing severe cold/flu symptoms which influence his/her driving performance. (This variable was originally an attribute choice under the variable “Illness.”) N Prcnt Code Label 2,280 99.8 0 Absent 4 0.2 1 Present Format Type Length Variable Name AP1U Numeric 8 OtherIllness Definition: Establishes whether or not the driver experiences an illness or physical symptoms that are not described under the other illness variables. (This variable was originally an attribute choice under the variable “Illness” and was the “Other (specify)” attribute.) N Prcnt Code Label 2,248 98.4 0 Absent 36 1.6 1 Present Variable Name Format Type Length AP1U Numeric 8 NormalVision Definition: Establishes whether or not the driver wears corrective lenses to improve vision levels. (This variable was originally an attribute choice under the variable “Vision.”) N Prcnt Code Label 1,278 56.0 0 Absent 1,006 44.0 1 Present LTCCS Codebook DriverHealth Data Set • 98 Codebook - DriverHealth Data Set Format Type LengthVariable Name AP1U Numeric 8 Definition: Establishes whether or not the driver has been diagnosed with an uncorrected vision level that exceeds 20/2800. (This variable was originally an attribute choice under the variable LegallyBlind “Vision.”) N Prcnt Code Label 2,284 100.0 0 Absent Format Type Length Variable Name AP1U Numeric 8 Myopic Definition: Establishes whether or not the driver wears corrective lenses (including contact lenses) to compensate for a near-sighted condition. (This variable was originally an attribute choice under the variable “Vision.”) N Prcnt Code Label 1,991 87.2 0 Absent 293 12.8 1 Present Variable Name Format Type Length AP1U Numeric 8 Hyperopic Definition: Establishes whether or not the driver wears corrective lenses (including contact lenses) to compensate for a far-sighted condition. (This variable was originally an attribute choice under the variable “Vision.”) N Prcnt Code Label 2,159 94.5 0 Absent 125 5.5 1 Present Format Type Length Variable Name AP1U Numeric 8 Glaucoma Definition: Establishes whether or not the driver has been diagnosed as having glaucoma. (This variable was originally an attribute choice under the variable “Vision.”) N Prcnt Code Label 2,284 100.0 0 Absent LTCCS Codebook DriverHealth Data Set • 99 Codebook - DriverHealth Data Set Format Type Length Variable Name AP1U Numeric 8 ColorBlind Definition: Establishes whether or not the driver has been diagnosed as being color blind. (This variable was originally an attribute choice under the variable “Vision.”) N Prcnt Code Label 2,284 100.0 0 Absent Variable Name Format Type Length AP1U Numeric 8 Astigmatic Definition: Establishes whether or not the driver has been diagnosed as having astigmatism. (This variable was originally an attribute choice under the variable “Vision.”) N Prcnt Code Label 2,259 98.9 0 Absent 25 1.1 1 Present Format Type Length Variable Name AP1U Numeric 8 OtherVision Definition: Establishes whether or not the driver has a vision problem that is not described by the other vision variables. (This variable was originally an attribute choice under the variable “Vision” and was the “Other (specify)” attribute.) N Prcnt Code Label 2,073 90.8 0 Absent 211 9.2 1 Present Variable Name Format Type Length AP1U Numeric 8 UnknownVision Definition: Establishes whether or not the driver was coded as “Vision problem unknown.” This code is used when there is insufficient information to determine if the driver has a vision related problem/deficiency. (This variable was originally an attribute choice under the variable “Vision” and was the “Unknown” attribute.) N Prcnt Code Label 1,671 73.2 0 Absent 613 26.8 1 Present LTCCS Codebook DriverHealth Data Set • 100 Codebook - DriverHealth Data Set Format Type Length Variable Name AP2U Numeric 8 OtherFactorCount Definition: Documents the number of other physical factors coded to this driver. N Prcnt Code Label 1,468 64.3 0 0 136 6.0 1 1 16 0.7 2 2 1 0.0 3 3 24 1.1 7 No Driver Present 639 28.0 9 Unknown Format Type Length Variable Name AP1U Numeric 8 NoFactors Definition: Documents whether or not there were no other physical factors coded to this driver. N Prcnt Code Label 817 35.8 0 Absent 1,467 64.2 1 Present Format Type Length Variable Name AP1U Numeric 8 HearingImpairment Definition: Establishes whether or not the driver has a diagnosed hearing impairment. (This variable was originally an attribute choice under the variable “Other Physical Factors.”) N Prcnt Code Label 2,249 98.5 0 Absent 35 1.5 1 Present Variable Name Format Type Length AP1U Numeric 8 Prosthesis Definition: Establishes whether or not the driver is wearing a prosthesis. (This variable was originally an attribute choice under the variable “Other Physical Factors.”) N Prcnt Code Label 2,283 100.0 0 Absent 1 0.0 1 Present LTCCS Codebook DriverHealth Data Set • 101 Codebook - DriverHealth Data Set Format Type Length Variable Name AP1U Numeric 8 Definition: Establishes whether or not the driver has paralysis of the lower limbs. (This variable was originally an attribute choice under the variable “Other Physical Factors.”) N Paraplegia Prcnt Code Label 2,284 100.0 0 Absent Variable Name Format Type Length AP1U Numeric 8 StrenuousRecreation Definition: Establishes whether or not the driver participates in strenuous recreational activities during the seven day interval preceding the crash. (This variable was originally an attribute choice under the variable “Other Physical Factors.”) N Prcnt Code Label 2,240 98.1 0 Absent 44 1.9 1 Present Format Type Length Variable Name AP1U Numeric 8 StrenuousNonWork Definition: Establishes whether or not the driver participates/engages in strenuous non-work activities (e.g. household chores) during the seven day interval preceding the crash. (This variable was originally an attribute choice under the variable “Other Physical Factors.”) N Prcnt Code Label 2,243 98.2 0 Absent 41 1.8 1 Present Variable Name Format Type Length AP1U Numeric 8 SleepApnea Definition: Establishes whether or not the driver has an obstructive sleep apnea disorder. (This variable was originally an attribute choice under the variable “Other Physical Factors.”) N Prcnt Code Label 2,262 99.0 0 Absent 22 1.0 1 Present LTCCS Codebook DriverHealth Data Set • 102 Codebook - DriverHealth Data Set Format Type LengthVariable Name AP1U Numeric 8 OtherFactorPhysical Definition: Establishes whether or not the driver has a relevant physical factor that is not described in the other physical factor variables. (This variable was originally an attribute choice under the variable “Other Physical Factors” and was the “Other (specify)” attribute choice.) N Prcnt Code Label 2,256 98.8 0 Absent 28 1.2 1 Present LTCCS Codebook DriverHealth Data Set • 103 Codebook - DriverRecognitionDistraction Data Set DriverRecognitionDistraction Data Set The DriverRecognitionDistraction data set contains a variety of data supporting the analyst’s assessment. It focuses particularly on the driver’s recognition and distraction. One record of this information exists for each vehicle/driver. The DriverRecognitionDistraction data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the DriverRecognitionDistraction data set with other vehicle level data sets. Format Type Length Variable Name ML734F Numeric 8 Inattention Definition: Documents driver inattention (i.e. focusing on internal thought processes) and the nature of the involved thought processes. N Prcnt Code Label 1,551 67.9 0 No Inattention Factors 11 0.5 1 Personal problem 18 0.8 2 Family problem 4 0.2 3 Financial problem 9 0.4 4 Preceding argument 11 0.5 5 Future event (vacation, wedding, etc.) 24 1.1 7 No driver present 118 5.2 8 Other (specify) 538 23.6 9 Unknown Format Type Length Variable Name ML721F Numeric 8 Conversation Definition: Documents driver participation in conversation. The conversation can be associated with a variety of sources including conversing with passengers, talking on a cell phone, or talking on a CB radio. N Prcnt Code Label 1,929 84.5 0 Not conversing 33 1.4 1 Conversing with passenger 9 0.4 2 Talking on phone 12 0.5 3 Talking on CB radio 24 1.1 7 No driver present 1 0.0 8 Other (specify) 276 12.1 9 Unknown LTCCS Codebook DriverRecognitionDistraction Data Set • 104 Codebook - DriverRecognitionDistraction Data Set Format Type Length Variable Name ML737F Numeric 8 Subject Definition: Documents the nature of the conversation the driver is involved in during the pre-crash phase. N Prcnt Code Label 1,926 84.3 0 Not conversing 13 0.6 1 Business 8 0.4 2 Social 6 0.3 3 Family matter 1 0.0 4 Argument 24 1.1 7 No driver present 16 0.7 8 Other (specify) 290 12.7 9 Unknown Format Type Length Variable Name ML2462F Numeric 8 Conversant Definition: Documents the relationship between the driver and the person the driver was conversing with during the immediate pre-crash phase. N Prcnt Code Label 1,932 84.6 0 Not conversing 6 0.3 1 No relation/stranger 13 0.6 2 Business 8 0.4 3 Social (friend) 3 0.1 4 Boyfriend/girlfriend 8 0.4 5 Husband/wife 2 0.1 6 Driver/co-driver 12 0.5 7 Parent/child 24 1.1 77 No driver present 8 0.4 88 Other (specify) 268 11.7 99 Unknown LTCCS Codebook DriverRecognitionDistraction Data Set • 105 Codebook - DriverRecognitionDistraction Data Set Variable Name Format Type Length OutsideLocation ML743F Numeric 8 Definition: Documents the location of the exterior factor with respect to the driver’s location at the time the distraction first occurred. N Prcnt Code Label 1,608 70.4 0 No exterior factors 47 2.1 1 Forward 33 1.4 2 Forward, left 29 1.3 3 Forward, right 18 0.8 4 Left 18 0.8 5 Right 21 0.9 6 Rearward 24 1.1 7 No driver present 12 0.5 8 Other (specify) 474 20.8 9 Unknown Format Type Length Variable Name ML750F Numeric 8 ADDSurveillance Definition: Establishes inadequate surveillance behavior on the part of the driver of this vehicle. N Prcnt Code Label 1,634 71.5 0 No additional surveillance factors 83 3.6 1 Failed to look far enough ahead 11 0.5 2 Failed to look to either side ahead 65 2.8 3 Failed to look to side 16 0.7 4 Failed to look to rear (mirrors) 4 0.2 5 Failed to look other (specify) 82 3.6 6 Looked, but did not see 24 1.1 77 No driver present 10 0.4 88 Other (specify) 355 15.5 99 Unknown LTCCS Codebook DriverRecognitionDistraction Data Set • 106 Codebook - DriverRecognitionDistraction Data Set Format Type Length Variable Name ML751F Numeric 8 Tracking Definition: Establishes how the driver tracked the exterior factor when this factor is located behind the vehicle. N Prcnt Code Label 1,608 70.4 0 No exterior factors 71 3.1 1 Turned head 3 0.1 2 Used rearview mirror 20 0.9 3 Used side mirror 24 1.1 7 No driver present 1 0.0 8 Other (specify) 557 24.4 9 Unknown Format Type Length Variable Name ML745F Numeric 8 ADDRecognition Definition: Establishes the occurrence of other recognition factors related to this driver. N Prcnt Code Label 1,788 78.3 0 No other recognition factors 17 0.7 1 Impending problem masked by traffic flow pattern 27 1.2 2 Driver focused on extraneous vehicle 71 3.1 3 Other recognition error (specify) 24 1.1 7 No driver present 357 15.6 9 Unknown Format Type Length Variable Name AP2U Numeric 8 InteriorDistractionCount Definition: Documents the number of interior distractions that were coded for this driver. N Prcnt Code Label 1,671 73.2 0 0 60 2.6 1 1 24 1.1 7 No Driver Present 529 23.2 9 Unknown LTCCS Codebook DriverRecognitionDistraction Data Set • 107 Codebook - DriverRecognitionDistraction Data Set Format Type LengthVariable Name AP1U Numeric 8 OccupantMovement Definition: Documents whether or not the driver is distracted by other occupants in the vehicle. (This variable was originally an attribute choice under the variable “Other Non-Driving Activities,” which had to do with distractions internal to the vehicle.) N Prcnt Code Label 2,283 100.0 0 Absent 1 0.0 1 Present Variable Name Format Type Length AP1U Numeric 8 ADDDialingPhone Definition: Documents whether or not the driver is distracted as a result of either dialing or hanging up a phone during the pre-crash phase. (This variable was originally an attribute choice under the variable “Other Non-Driving Activities,” which had to do with distractions internal to the vehicle.) N Prcnt Code Label 2,284 100.0 0 Absent Variable Name Format Type Length AP1U Numeric 8 ADDAdjustingRadio Definition: Documents whether or not the driver is distracted as a result of attempting to adjust the sound system controls during the pre-crash phase. (This variable was originally an attribute choice under the variable “Other Non-Driving Activities,” which had to do with distractions internal to the vehicle.) N Prcnt Code Label 2,281 99.9 0 Absent 3 0.1 1 Present Format Type Length Variable Name AP1U Numeric 8 OtherControls Definition: Documents whether or not the driver is distracted as a result of attempting to adjust the heat, vent or air conditioning controls during the pre-crash phase. This category also includes attempted adjustments to other OEM and after-market controls. (This variable was originally an attribute choice under the variable “Other Non-Driving Activities,” which had to do with distractions internal to the vehicle.) N Prcnt Code Label 2,283 100.0 0 Absent 1 0.0 1 Present LTCCS Codebook DriverRecognitionDistraction Data Set • 108 Codebook - DriverRecognitionDistraction Data Set Variable Name Format Type Length FloorRetrieval AP1U Numeric 8 Definition: Documents whether or not the driver is distracted as a result of trying to retrieve an object from either the floor or seat while driving. The objects in this category include everything with the exception of items related to smoking or eating, which are addressed in the “Other” category. (This variable was originally an attribute choice under the variable “Other Non-Driving Activities,” which had to do with distractions internal to the vehicle.) N Prcnt Code Label 2,273 99.5 0 Absent 11 0.5 1 Present Format Type Length Variable Name AP1U Numeric 8 OtherRetrieval Definition: Documents whether or not the driver is distracted as a result of trying to retrieve an object from a location other than the floor or seat while driving. Again, the objects in this category include everything with the exception of items related to smoking or eating, which are addressed in the “Other” category. (This variable was originally an attribute choice under the variable “Other Non-Driving Activities,” which had to do with distractions internal to the vehicle.) N Prcnt Code Label 2,283 100.0 0 Absent 1 0.0 1 Present Format Type Length Variable Name AP1U Numeric 8 OtherInternal Definition: Documents whether or not the driver is distracted by internal factors not described in the other variables. Examples include smoking, eating, drinking, and reading-related activities. (This variable was originally an attribute choice under the variable “Other Non-Driving Activities,” and was the “Other (specify)” attribute choice.) N Prcnt Code Label 2,241 98.1 0 Absent 43 1.9 1 Present LTCCS Codebook DriverRecognitionDistraction Data Set • 109 Codebook - DriverRecognitionDistraction Data Set Variable Name Format Type Length ExteriorDistractionCount AP2U Numeric 8 Definition: Documents the number of exterior distractions that were coded for this driver. N Prcnt Code Label 1,609 70.4 0 0 173 7.6 1 1 7 0.3 2 2 24 1.1 7 No Driver Present 471 20.6 9 Unknown Format Type Length Variable Name AP1U Numeric 8 ADDPreviousCrash Definition: Documents whether or not the driver removes his/her focus from the driving task to look at a previous crash (i.e. rubbernecking). (This variable was originally an attribute choice under the variable “Exterior Factors” and had to do with the driver focusing on factors that were exterior to the vehicle.) N Prcnt Code Label 2,264 99.1 0 Absent 20 0.9 1 Present Format Type Length Variable Name AP1U Numeric 8 ApproachingTraffic Definition: Documents whether or not the driver removes his/her focus from the driving task to look at approaching traffic either in an adjoining lane or across a median area. (This variable was originally an attribute choice under the variable “Exterior Factors” and had to do with the driver focusing on factors that were exterior to the vehicle.) N Prcnt Code Label 2,248 98.4 0 Absent 36 1.6 1 Present Variable Name Format Type Length AP1U Numeric 8 StreetAddress Definition: Documents whether or not the driver removes his/her focus from the driving task to search for a street address (usually searching for a specific building number). (This variable was originally an attribute choice under the variable “Exterior Factors” and had to do with the driver focusing on factors that were exterior to the vehicle.) N Prcnt Code Label 2,278 99.7 0 Absent 6 0.3 1 Present LTCCS Codebook DriverRecognitionDistraction Data Set • 110 Codebook - DriverRecognitionDistraction Data Set Variable Name Format Type Length ExternalPerson AP1U Numeric 8 Definition: Documents whether or not the driver removes his/her focus from the driving task to look at a person who is exterior to this vehicle. The person can be a pedestrian, bicyclist, skater, and an occupant of another vehicle or even a person in a building. (This variable was originally an attribute choice under the variable “Exterior Factors” and had to do with the driver focusing on factors that were exterior to the vehicle.) N Prcnt Code Label 2,278 99.7 0 Absent 6 0.3 1 Present Format Type LengthVariable Name AP1U Numeric 8 Building Definition: Documents whether or not the driver removes his/her focus from the driving task to look at a building (usually as a result of seeing a feature of interest). (This variable was originally an attribute choice under the variable “Exterior Factors” and had to do with the driver focusing on factors that were exterior to the vehicle.) N Prcnt Code Label 2,282 99.9 0 Absent 2 0.1 1 Present Variable Name Format Type Length AP1U Numeric 8 UnspecifiedExternal Definition: Documents whether or not the driver removes his/her focus from the driving task to focus on something exterior to the vehicle, but there is insufficient information to determine the direction or the specific object that is being examined. (This variable was originally an attribute choice under the variable “Exterior Factors” and had to do with the driver focusing on factors that were exterior to the vehicle.) N Prcnt Code Label 2,281 99.9 0 Absent 3 0.1 1 Present Variable Name Format Type Length AP1U Numeric 8 OtherExternal Definition: Documents whether or not the driver was distracted by something that is exterior to the vehicle and that is not adequately described by the other variables. (This variable was originally an attribute choice under the variable “Exterior Factors” and was the “Other (specify)” attribute choice.) N Prcnt Code Label 2,170 95.0 0 Absent 114 5.0 1 Present LTCCS Codebook DriverRecognitionDistraction Data Set • 111 Codebook - DriverSleep Data Set DriverSleep Data Set The DriverSleep data set contains a variety of data supporting the analyst’s assessment. It focuses particularly on the area of driver sleep patterns and fatigue. One record of this information exists for each vehicle/driver. The DriverSleep data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the DriverSleep data set with other vehicle level data sets. Format Type Length Variable Name $OT19F Char 10 LastSleepHours Definition: Represents the number of hours the driver slept (most recent sleep interval). N Prcnt Code Label 1 0.0 * 00:20 5 0.2 * 01:00 6 0.3 * 01:30 1 0.0 * 01:45 16 0.7 * 02:00 5 0.2 * 02:30 12 0.5 * 03:00 6 0.3 * 03:30 18 0.8 * 04:00 10 0.4 * 04:30 ------------------------------ 2 0.1 * 12:15 6 0.3 * 12:30 6 0.3 * 13:00 3 0.1 * 13:30 1 0.0 * 13:45 4 0.2 * 14:00 3 0.1 * 16:00 1 0.0 * 22:30 24 1.1 97:97 No driver present 726 31.8 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook DriverSleep Data Set • 112 Codebook - DriverSleep Data Set Format Type Length Variable Name $OT19F Char 10 LastSleepStart Definition: The time of day (military time) that the driver began his/her last sleep interval. N Prcnt Code Label 49 2.1 * 00:00 1 0.0 * 00:01 1 0.0 * 00:15 11 0.5 * 00:30 32 1.4 * 01:00 3 0.1 * 01:30 1 0.0 * 01:45 13 0.6 * 02:00 8 0.4 * 02:30 1 0.0 * 02:45 ------------------------------ 89 3.9 * 22:30 2 0.1 * 22:45 177 7.7 * 23:00 3 0.1 * 23:15 36 1.6 * 23:30 1 0.0 * 23:40 2 0.1 * 23:45 1 0.0 * 23:59 24 1.1 97:97 No driver present 788 34.5 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $OT19F Char 10 LastSleepEnd Definition: The time of day (military time) that the driver awoke from his/her last sleep interval. N Prcnt Code Label 16 0.7 * 00:00 2 0.1 * 00:30 2 0.1 * 00:45 13 0.6 * 01:00 1 0.0 * 01:10 2 0.1 * 01:15 1 0.0 * 01:25 10 0.4 * 01:30 1 0.0 * 01:40 LTCCS Codebook DriverSleep Data Set • 113 Codebook - DriverSleep Data Set N Prcnt Code Label 2 0.1 * 01:45 ------------------------------ 3 0.1 * 21:30 10 0.4 * 22:00 2 0.1 * 22:15 5 0.2 * 22:30 1 0.0 * 22:45 5 0.2 * 23:00 2 0.1 * 23:15 2 0.1 * 23:30 24 1.1 97:97 No driver present 777 34.0 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $OT19F Char 10 HoursSinceSleep Definition: Represents the number of hours that have passed since the driver has awoken from his/her last sleep interval. N Prcnt Code Label 1 0.0 * 00:08 1 0.0 * 00:10 2 0.1 * 00:15 3 0.1 * 00:21 1 0.0 * 00:22 1 0.0 * 00:23 1 0.0 * 00:29 3 0.1 * 00:30 3 0.1 * 00:35 2 0.1 * 00:36 ------------------------------ 1 0.0 * 20:30 1 0.0 * 20:35 1 0.0 * 22:00 1 0.0 * 22:15 2 0.1 * 22:30 1 0.0 * 36:51 1 0.0 * 38:36 24 1.1 97:97 No driver present 1 0.0 98:98 Not applicable 774 33.9 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook DriverSleep Data Set • 114 Codebook - DriverSleep Data Set Format Type Length Variable Name $OT19F Char 10 MainSleepHours Definition: If the driver’s last sleep interval was less than 4 hours, this is the number of hours that the driver slept in his/her previous sleep interval where that interval was greater than 4 hours (i.e. “main” sleep interval). N Prcnt Code Label 1 0.0 * 02:00 1 0.0 * 02:30 2 0.1 * 03:00 1 0.0 * 03:30 1 0.0 * 04:00 1 0.0 * 04:30 1 0.0 * 04:45 4 0.2 * 05:00 6 0.3 * 06:00 1 0.0 * 06:30 ------------------------------ 1 0.0 * 09:15 1 0.0 * 09:30 4 0.2 * 10:00 1 0.0 * 10:30 1 0.0 * 11:00 1 0.0 * 11:30 2 0.1 * 12:00 24 1.1 97:97 No driver present 1,482 64.9 98:98 Not applicable 735 32.2 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $OT19F Char 10 MainSleepStart Definition: The time of day (military time) that the driver’s main sleep interval began. This variable should be coded when the driver’s last sleep interval was less than 4 hours. N Prcnt Code Label 3 0.1 * 00:00 1 0.0 * 01:00 2 0.1 * 02:00 1 0.0 * 03:30 1 0.0 * 04:30 1 0.0 * 05:00 2 0.1 * 06:00 1 0.0 * 06:30 LTCCS Codebook DriverSleep Data Set • 115 Codebook - DriverSleep Data Set N Prcnt Code Label 1 0.0 * 07:30 1 0.0 * 09:00 ------------------------------ 3 0.1 * 21:00 2 0.1 * 21:30 3 0.1 * 22:00 1 0.0 * 22:30 3 0.1 * 23:00 1 0.0 * 23:15 1 0.0 * 23:30 24 1.1 97:97 No driver present 1,482 64.9 98:98 Not applicable 737 32.3 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $OT19F Char 10 MainSleepEnd Definition: The time of day (military time) that the driver’s main sleep interval ended. This variable should be coded when the driver’s last sleep interval was less than 4 hours. N Prcnt Code Label 1 0.0 * 00:00 2 0.1 * 02:00 1 0.0 * 03:00 1 0.0 * 03:30 4 0.2 * 04:00 3 0.1 * 04:30 1 0.0 * 05:30 4 0.2 * 06:00 2 0.1 * 06:30 2 0.1 * 07:00 ------------------------------ 3 0.1 * 12:00 2 0.1 * 14:00 1 0.0 * 14:30 2 0.1 * 15:00 2 0.1 * 19:30 1 0.0 * 20:45 1 0.0 * 21:00 24 1.1 97:97 No driver present 1,482 64.9 98:98 Not applicable 736 32.2 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook DriverSleep Data Set • 116 Codebook - DriverSleep Data Set Format Type Length Variable Name $OT19F Char 10 HoursDriving Definition: Represents the number of hours the driver has been driving since he/she last had a break of at least 8 hours. N Prcnt Code Label 1 0.0 * 00:00 1 0.0 * 00:01 1 0.0 * 00:04 4 0.2 * 00:05 3 0.1 * 00:08 14 0.6 * 00:10 1 0.0 * 00:12 1 0.0 * 00:13 1 0.0 * 00:14 26 1.1 * 00:15 ------------------------------ 1 0.0 * 15:15 1 0.0 * 16:00 1 0.0 * 16:30 1 0.0 * 18:00 1 0.0 * 18:30 1 0.0 * 19:30 1 0.0 * 24:00 24 1.1 97:97 No driver present 845 37.0 98:98 Not applicable 479 21.0 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $OT19F Char 10 ADSHoursOnDuty Definition: Represents the number of hours the driver has been on duty since he/she last had a break of at least 8 hours. N Prcnt Code Label 65 2.8 * 00:00 1 0.0 * 00:01 1 0.0 * 00:05 2 0.1 * 00:08 7 0.3 * 00:10 1 0.0 * 00:13 13 0.6 * 00:15 1 0.0 * 00:16 LTCCS Codebook DriverSleep Data Set • 117 Codebook - DriverSleep Data Set N Prcnt Code Label 1 0.0 * 00:18 1 0.0 * 00:19 ------------------------------ 2 0.1 * 15:00 1 0.0 * 16:30 1 0.0 * 17:30 1 0.0 * 18:00 1 0.0 * 19:00 2 0.1 * 19:30 2 0.1 * 20:00 24 1.1 97:97 No driver present 707 31.0 98:98 Not applicable 415 18.2 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $OT19F Char 10 WeekLongest Definition: Represents the number of hours the driver worked on his/her longest workday in the 7-day interval preceding the crash. N Prcnt Code Label 2 0.1 * 04:00 2 0.1 * 04:30 7 0.3 * 05:00 3 0.1 * 05:30 18 0.8 * 06:00 3 0.1 * 06:15 5 0.2 * 06:30 80 3.5 * 07:00 1 0.0 * 07:10 1 0.0 * 07:15 ------------------------------ 13 0.6 * 13:00 3 0.1 * 13:30 1 0.0 * 13:45 9 0.4 * 14:00 5 0.2 * 15:00 3 0.1 * 16:00 1 0.0 * 17:00 1 0.0 * 20:00 24 1.1 97:97 No driver present 793 34.7 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook DriverSleep Data Set • 118 Codebook - DriverSleep Data Set Variable Name Format Type Length WeekShortest $OT19F Char 10 Definition: Represents the number of hours the driver worked on his/her shortest workday in the 7-day interval preceding the crash. N Prcnt Code Label 1 0.0 * 00:30 5 0.2 * 01:00 4 0.2 * 01:30 34 1.5 * 02:00 4 0.2 * 02:30 33 1.4 * 03:00 2 0.1 * 03:30 72 3.2 * 04:00 1 0.0 * 04:15 8 0.4 * 04:30 ------------------------------ 1 0.0 * 09:45 19 0.8 * 10:00 1 0.0 * 10:30 1 0.0 * 11:00 1 0.0 * 11:30 1 0.0 * 12:00 1 0.0 * 13:45 1 0.0 * 14:00 24 1.1 97:97 No driver present 810 35.5 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $OT19F Char 10 WeekAverage Definition: Represents the average number of hours the driver worked per day in the 7-day interval preceding the crash. N Prcnt Code Label 15 0.7 * 04:00 2 0.1 * 04:30 24 1.1 * 05:00 10 0.4 * 05:30 91 4.0 * 06:00 1 0.0 * 06:20 39 1.7 * 06:30 1 0.0 * 06:40 LTCCS Codebook DriverSleep Data Set • 119 Codebook - DriverSleep Data Set N Prcnt Code Label 5 0.2 * 06:45 210 9.2 * 07:00 ------------------------------ 3 0.1 * 10:30 11 0.5 * 11:00 1 0.0 * 11:25 1 0.0 * 11:30 5 0.2 * 12:00 1 0.0 * 13:00 1 0.0 * 13:45 1 0.0 * 14:30 24 1.1 97:97 No driver present 768 33.6 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length ML674F Numeric 8 Rotation Definition: Establishes the occurrence of a rotating sleep period (i.e. beginning of sleep interval changes during the period). N Prcnt Code Label 126 5.5 1 Yes 1,451 63.5 2 No 24 1.1 7 No driver present 683 29.9 9 Unknown Variable Name Format Type Length $OT19F Char 10 HoursWorked Definition: Represents the number of hours the driver worked on the day of the crash. N Prcnt Code Label 237 10.4 * 00:00 1 0.0 * 00:01 1 0.0 * 00:03 2 0.1 * 00:05 2 0.1 * 00:08 7 0.3 * 00:10 1 0.0 * 00:13 9 0.4 * 00:15 1 0.0 * 00:16 1 0.0 * 00:18 ------------------------------ LTCCS Codebook DriverSleep Data Set • 120 Codebook - DriverSleep Data Set N Prcnt Code Label 1 0.0 * 14:45 1 0.0 * 14:50 3 0.1 * 15:00 1 0.0 * 16:30 1 0.0 * 16:48 1 0.0 * 18:00 1 0.0 * 19:00 24 1.1 97:97 No driver present 124 5.4 98:98 Not applicable 730 32.0 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $OT19F Char 10 ADSLongestDay Definition: The number of hours the driver slept in the 7-day interval preceding the crash that represents his/her longest interval of daily sleep. N Prcnt Code Label 25 1.1 * 00:00 1 0.0 * 02:00 1 0.0 * 02:45 7 0.3 * 03:00 1 0.0 * 03:30 9 0.4 * 04:00 3 0.1 * 04:30 1 0.0 * 04:38 14 0.6 * 05:00 1 0.0 * 05:30 ------------------------------ 1 0.0 * 16:48 3 0.1 * 17:00 6 0.3 * 18:00 1 0.0 * 18:18 1 0.0 * 18:30 1 0.0 * 19:00 1 0.0 * 20:00 1 0.0 * 24:00 24 1.1 97:97 No driver present 134 5.9 98:98 Not applicable 701 30.7 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook DriverSleep Data Set • 121 Codebook - DriverSleep Data Set Format Type Length Variable Name $OT19F Char 10 ADSShortestDay Definition: The number of hours the driver slept in the 7-day interval preceding the crash that represents his/her shortest interval of daily sleep. N Prcnt Code Label 164 7.2 * 00:00 2 0.1 * 00:10 6 0.3 * 00:15 10 0.4 * 00:30 2 0.1 * 00:45 15 0.7 * 01:00 3 0.1 * 01:15 1 0.0 * 01:21 2 0.1 * 01:25 6 0.3 * 01:30 ------------------------------ 3 0.1 * 13:00 1 0.0 * 13:30 2 0.1 * 14:00 1 0.0 * 14:30 1 0.0 * 15:00 2 0.1 * 18:00 1 0.0 * 24:00 24 1.1 97:97 No driver present 134 5.9 98:98 Not applicable 729 31.9 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $OT19F Char 10 ADSAverageDay Definition: Represents the average number of hours the driver slept per day in the 7-day interval preceding the crash. N Prcnt Code Label 26 1.1 * 00:00 1 0.0 * 00:45 1 0.0 * 01:06 3 0.1 * 02:00 2 0.1 * 02:45 11 0.5 * 03:00 1 0.0 * 03:25 2 0.1 * 03:30 1 0.0 * 03:50 LTCCS Codebook DriverSleep Data Set • 122 Codebook - DriverSleep Data Set N Prcnt Code Label 1 0.0 * 03:57 ------------------------------ 7 0.3 * 13:00 5 0.2 * 13:30 6 0.3 * 14:00 1 0.0 * 14:30 1 0.0 * 15:00 2 0.1 * 18:00 1 0.0 * 24:00 24 1.1 97:97 No driver present 138 6.0 98:98 Not applicable 704 30.8 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $OT20F Char 10 LastWeekHours Definition: Represents the total number of hours that the driver worked on his primary job during the 7-day interval preceding the crash. N Prcnt Code Label 24 1.1 * 00:00 1 0.0 * 00:30 1 0.0 * 02:45 1 0.0 * 03:00 1 0.0 * 04:00 1 0.0 * 04:38 1 0.0 * 05:00 1 0.0 * 05:30 4 0.2 * 06:00 1 0.0 * 06:30 ------------------------------ 1 0.0 * 79:30 2 0.1 * 80:00 1 0.0 * 82:00 1 0.0 * 84:00 1 0.0 * 90:00 1 0.0 * 91:00 1 0.0 * 97:15 24 1.1 97:97 No driver present 134 5.9 98:98 Not applicable 756 33.1 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook DriverSleep Data Set • 123 Codebook - DriverSleep Data Set Format Type Length Variable Name $OT19F Char 10 LastWeekMoonlight Definition: Represents the number of hours the driver worked on his/her second job during the 7-day interval preceding the crash. N Prcnt Code Label 11 0.5 * 00:00 1 0.0 * 00:05 1 0.0 * 05:00 2 0.1 * 06:00 1 0.0 * 09:00 5 0.2 * 10:00 1 0.0 * 10:50 1 0.0 * 12:00 2 0.1 * 14:00 1 0.0 * 15:00 ------------------------------ 2 0.1 * 32:00 1 0.0 * 35:00 1 0.0 * 38:00 2 0.1 * 40:00 1 0.0 * 45:00 1 0.0 * 54:00 1 0.0 * 57:00 24 1.1 97:97 No driver present 1,637 71.7 98:98 Not applicable 573 25.1 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook DriverSleep Data Set • 124 Codebook - Environment Data Set Environment Data Set The Environment data set contains information on the physical parameters of the roadway in the vicinity of the crash, any adverse weather conditions, how the driver was operating the vehicle and any distraction information if applicable. One record of this information is stored for each vehicle. The Environment data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the Environment data set with other vehicle level data sets. Format Type Length Variable Name ML519F Numeric 8 RoadRelation Definition: Describes the characteristics of this vehicle’s roadway environment just prior to the critical precrash event. N Prcnt Code Label 2,199 96.3 1 On roadway 49 2.1 2 Shoulder 9 0.4 3 Median 22 1.0 4 Roadside 2 0.1 5 Outside right-of-way 3 0.1 8 Gore Format Type Length Variable Name ML1422F Numeric 8 Junction Definition: Describes this vehicle’s roadway as it relates to a junction. A junction is, in general, the area formed by the connection of two roadways. It includes (1) all at-grade intersections, (2) connections between a driveway access or alley access and a roadway that is not a driveway access or an alley access, (3) connections between two alley accesses or driveway accesses, or (4) a connection between a driveway and an alley access. An interchange is an area around a grade separation that involves at least two trafficways. Included within its boundaries are: (1) all ramps that connect the roadways, and (2) each roadway entering or leaving the interchange to a point 30 meters (100 feet) beyond the gore or curb return at the outermost ramp connection for the roadway. Included within an interchange area are intersections, driveway accesses, and roadway sections that are non-junction. N Prcnt Code Label 1,336 58.5 1 Non-junction 314 13.7 2 Intersection 159 7.0 3 Intersection related 79 3.5 4 Driveway, alley access, etc. 215 9.4 5 Entrance/exit ramp related 10 0.4 6 Rail grade crossing 7 0.3 7 In crossover 161 7.0 15 Other location in interchange 3 0.1 99 Unknown LTCCS Codebook Environment Data Set • 125 Codebook - Environment Data Set Format Type LengthVariable Name ML1136F Numeric 8 Interchange Definition: Determines whether or not the crash involved an interchange. An interchange is an area around a grade separation that involves at least two trafficways. Included within its boundaries are: (1) all ramps that connect the roadways, and (2) each roadway entering or leaving the interchange to a point 30 meters (100 feet) beyond the gore or curb return at the outermost ramp connection for the roadway. Included within an interchange area are intersections, driveway accesses, and roadway sections that are non-junction. N Prcnt Code Label 1,903 83.3 0 No 378 16.5 1 Yes 3 0.1 9 Unknown Format Type Length Variable Name ML149F Numeric 8 ENVTrafficFlow Definition: Describes the flow of traffic as specified by the design of the roadway just prior to the critical precrash event. N Prcnt Code Label 448 19.6 1 Divided trafficway-median strip without positive barrier 989 43.3 2 Divided trafficway-median strip with positive barrier 154 6.7 3 One way traffic 662 29.0 4 Not physically divided (two way traffic) 31 1.4 5 Not physically divided with two-way left turn lane Format Type Length Variable Name ML520F Numeric 8 FlowRestriction Definition: Identifies preexisting trafficway flow restrictions that hindered the general flow of traffic in some way. Selection of specific attributes does not imply that the restriction contributed to crash causation. N Prcnt Code Label 1,824 79.9 0 No restrictions 152 6.7 1 Work zone 59 2.6 3 Prior crash 197 8.6 4 Congestion 52 2.3 8 Other (Specify) LTCCS Codebook Environment Data Set • 126 Codebook - Environment Data Set Format Type Length Variable Name ML1421F Numeric 8 IntersectionType Definition: Defines the intersection type for those crashes that occur in an intersection or are intersection-related. For example, if there is a stream of traffic stopped on the approach to an intersection and a vehicle at the rear of this traffic stream is struck in the rear by a second vehicle, the crash is considered intersection-related and intersection type is coded for this crash. N Prcnt Code Label 1,735 76.0 0 Non-intersection (and not intersection related) 214 9.4 1 Signalized cross intersection 14 0.6 2 Cross intersection with right turn lane(s) and stop control on minor street 29 1.3 3 Cross intersection with left turn lane(s) and stop control on minor street 16 0.7 4 Cross intersection with left/right turn lane(s) and stop control on minor 106 4.6 5 Cross intersection with no turning lanes and stop control on minor street 20 0.9 6 Signalized Tee intersection 23 1.0 7 Tee intersection with turn lanes and stop control on minor street 73 3.2 8 Tee intersection with no turn lanes and stop control on minor street 51 2.2 88 Other (specify) 3 0.1 99 Unknown Format Type Length Variable Name ML275F Numeric 8 TravelLanes Definition: Establishes the number of travel lanes that existed for this vehicle prior to the critical precrash event. The attribute related to this variable is determined from the same roadway that was used to determine the variable “Trafficway Flow.” If traffic flows in both directions and is undivided, the number of lanes in both directions is indicated. If the trafficway is divided into two or more roadways, only the number of lanes for the roadway on which this vehicle was traveling is indicated. If turn bays, acceleration, deceleration, or center two-way left turn lanes exist and are physically located within the cross section of the roadway and these lanes are the most representative of the driver’s environment just prior to the critical precrash event, then they are included in the number of lanes. N Prcnt Code Label 65 2.8 1 One 817 35.8 2 Two 498 21.8 3 Three 508 22.2 4 Four 280 12.3 5 Five 89 3.9 6 Six 25 1.1 7 Seven or more 2 0.1 9 Unknown LTCCS Codebook Environment Data Set • 127 Codebook - Environment Data Set Format Type Length Variable Name ML522F Numeric 8 AccessControl Definition: Describes the level of control maintained for vehicles attempting to enter/exit the roadway. The attribute is determined for the same roadway as described in the variable “Number Of Travel Lanes.” N Prcnt Code Label 1,393 61.0 1 Full control 890 39.0 2 No control 1 0.0 3 Other (Specify) Variable Name Format Type Length ML523F Numeric 8 Signage Definition: Describes the general class of roadway by noting the type of route signing. The attribute is determined for the same roadway described in the variable “Number Of Travel Lanes.” N Prcnt Code Label 1,156 50.6 1 Interstate 216 9.5 2 U.S. highway 425 18.6 3 State highway 170 7.4 4 County road 50 2.2 5 Township 247 10.8 6 Municipality 7 0.3 7 Frontage road 13 0.6 8 Other (Specify) Variable Name Format Type Length ML524F Numeric 8 FunctionalClass Definition: This variable is based upon the Federal Highway Administration’s classification system for identifying a roadway functional system. The basic functional systems are: (1) rural areas, (2) urbanized areas, and (3) small urban areas (under 50,000 in population). Each system is comprised of various functional categories. N Prcnt Code Label 236 10.3 1 Rural principal arterial -Interstate 186 8.1 2 Rural principal arterial -other 133 5.8 3 Rural minor arterial 65 2.8 4 Rural major collector 57 2.5 5 Rural minor collector 65 2.8 6 Rural local 14 0.6 7 Rural unknown 921 40.3 8 Urban principal arterial -Interstate 160 7.0 9 Urban principal arterial -Freeways and Expressways LTCCS Codebook Environment Data Set • 128 Codebook - Environment Data Set N Prcnt Code Label 194 8.5 10 Urban principal arterial -other 97 4.2 11 Urban minor arterial 44 1.9 12 Urban collector 104 4.6 13 Urban local 8 0.4 99 Unknown Format Type Length Variable Name ML154F Numeric 8 Daylight Definition: Establishes the light conditions of the roadway at the time of the crash and respresents both ambient and artificial sources of light. N Prcnt Code Label 1,701 74.5 1 Daylight 225 9.9 2 Dark 256 11.2 3 Dark, but lighted 84 3.7 4 Dawn 18 0.8 5 Dusk Variable Name Format Type Length ML2771F Numeric 8 TrafficControl Definition: Documents the above-ground traffic control(s) that regulate vehicular traffic in the vehicle’s environment just prior to this vehicle’s critical precrash event. The attribute is determined for the same roadway that is used to define the variable “Trafficway Flow.” N Prcnt Code Label 1,699 74.4 0 No Control Devices 122 5.3 1 Control signal (on colors) w/pedestrian signal 124 5.4 2 Control signal (on colors) w/o pedestrian signal 6 0.3 3 Control signal (on colors) unknown pedestrian signal 24 1.1 4 Flashing control signal 5 0.2 5 Flashing beacon 1 0.0 6 Flashing highway signal, unknown or other 10 0.4 7 Lane use control signal 4 0.2 8 Other highway signal 74 3.2 20 Stop sign 7 0.3 21 Yield sign 41 1.8 22 Other regulatory sign 1 0.0 31 School advance or crossing sign 108 4.7 40 Warning sign 10 0.4 50 Office, crossing guard, flagman, etc 5 0.2 60 Gates (active) 2 0.1 61 Flashing lights (active) LTCCS Codebook Environment Data Set • 129 Codebook - Environment Data Set N Prcnt Code Label 5 0.2 70 Cross-bucks (passive) 33 1.4 98 Other (specify) 3 0.1 99 Unknown Variable Name Format Type Length OT23F Numeric 8 Railroad Definition: Establishes whether or not a railroad-crossing device was present at the time of the crash. N Prcnt Code Label 2,236 97.9 0 No 12 0.5 1 Yes 36 1.6 2 Unknown Variable Name Format Type Length ML276F Numeric 8 Functioning Definition: Establishes whether or not the traffic control device that was identified in the variable “Traffic Control Device” was functioning properly (as it was designed to function). N Prcnt Code Label 1,668 73.0 0 No traffic control device 6 0.3 1 Traffic control device not functioning (specify) 550 24.1 2 Traffic control device functioning properly 60 2.6 9 Unknown Format Type Length Variable Name ML1434F Numeric 8 RoadwayClass Definition: Designates the class of roadway within rural and urban categories. The “urban” designation includes urbanized and small urban areas (under 50,000 in population). In general, the “freeways” designation includes freeways, expressways, thruways, and other controlled-access roadway segments. N Prcnt Code Label 105 4.6 1 Rural Freeway (> 4 lanes) 172 7.5 2 Rural Freeway (<= 4 lanes) 81 3.5 3 Rural multi-lane divided, non-Freeway 87 3.8 4 Rural multi-lane undivided, non-Freeway 306 13.4 5 Rural two-lane road 6 0.3 6 Rural unknown 871 38.1 7 Urban Freeway (> 4 lanes) 214 9.4 8 Urban Freeway (<= 4 lanes) 152 6.7 9 Urban multi-lane divided, non-Freeway LTCCS Codebook Environment Data Set • 130 Codebook - Environment Data Set N Prcnt Code Label 146 6.4 10 Urban multi-lane undivided, non-Freeway 140 6.1 11 Urban two-lane road 3 0.1 12 Urban unknown 1 0.0 99 Unknown Variable Name Format Type Length RoadAlignment ML206F Numeric 8 Definition: Describes the alignment of the roadway just prior to the vehicle’s critical precrash event. This element is determined from the same roadway that was used to determine the variable “Trafficway Flow.” N Prcnt Code Label 1,764 77.2 1 Straight 291 12.7 2 Curve right 229 10.0 3 Curve left Variable Name Format Type Length ML146F Numeric 8 RoadProfile Definition: Establishes the grade of the roadway just prior to the vehicle’s critical precrash event. To determine the grade, the vertical measurement is divided by the horizontal value; the result is a percentage value of the grade. This element is determined from the same roadway that was used to determine the variable “Trafficway Flow.” N Prcnt Code Label 1,590 69.6 1 Level 299 13.1 2 Uphill grade (>2%) 43 1.9 3 Hill crest 321 14.1 4 Downhill grade (>2%) 10 0.4 5 Sag 21 0.9 9 Unknown Format Type Length Variable Name ML147F Numeric 8 RoadSurface Definition: Describes the surface type of the roadway just prior to the vehicle’s critical precrash event. This element is determined from the same roadway that was used to determine the variable “Trafficway Flow.” N Prcnt Code Label 569 24.9 1 Concrete 1,706 74.7 2 Bituminous (asphalt) 3 0.1 4 Slag, gravel, or stone 1 0.0 5 Dirt LTCCS Codebook Environment Data Set • 131 Codebook - Environment Data Set N Prcnt Code Label 3 0.1 8 Other (Specify) 2 0.1 9 Unknown Variable Name Format Type Length ML207F Numeric 8 SurfaceCondition Definition: Describes the condition of the surface of the roadway just prior to the vehicle’s critical precrash event. This element is determined from the same roadway that was used to determine the variable “Trafficway Flow.” N Prcnt Code Label 1,850 81.0 1 Dry 361 15.8 2 Wet 22 1.0 3 Snow or slush 36 1.6 4 Ice 15 0.7 8 Other (Specify) Variable Name Format Type Length ML525F Numeric 8 SurfaceDefect Definition: Describes the presence of any surface defects of the roadway just prior to the vehicle’s critical precrash event, regardless of the relative contribution of the defect(s) to crash causation. This element is determined from the same roadway that was used to determine the variable “Number Of Travel Lanes.” N Prcnt Code Label 2,273 99.5 0 No defects noted 11 0.5 1 Defect noted (specify) Variable Name Format Type Length ML526F Numeric 8 DesignDefect Definition: Identifies design deficiencies of the roadway as they relate to established AASHTO standards. N Prcnt Code Label 2,225 97.4 0 No deficiencies notes 3 0.1 1 Inappropriate signage speeds 1 0.0 2 Insufficient crown 6 0.3 3 Excessive crown 1 0.0 4 Insufficient super-elevation 3 0.1 5 Excessive super-elevation 19 0.8 6 Excessive curvature 15 0.7 7 No shoulder/ Breakdown lane LTCCS Codebook Environment Data Set • 132 Codebook - Environment Data Set N Prcnt Code Label 8 0.4 8 Other (specify) 3 0.1 9 Unknown Variable Name Format Type Length ShoulderType ML1436F Numeric 8 Definition: Establishes stabilized shoulder presence at the crash site and the type of available shoulder surface. A shoulder is defined as that part of a trafficway that is (1) contiguous with the roadway for emergency use, (2) for accommodation of stopped road vehicles, and (3) for lateral support of the roadway structure. N Prcnt Code Label 551 24.1 0 No stabilized shoulder 209 9.2 1 Concrete 1,439 63.0 2 Bituminous (asphalt) 58 2.5 4 Slag, gravel, or stone 11 0.5 5 Dirt 12 0.5 8 Other (specify) 4 0.2 9 Unknown Variable Name Format Type Length OT22F Numeric 8 ShoulderWidth Definition: Establishes the width of the stabilized shoulder available to this vehicle. To qualify as a stabilized shoulder, the measured shoulder width must exceed two feet (0.61 meters). N Prcnt Code Label 551 24.1 0 No stabilized shoulder 106 4.6 1 < 1 meter 351 15.4 2 > 1 <= 2 meters 685 30.0 3 > 2 <= 3 meters 521 22.8 4 > 3 meters 70 3.1 9 Unknown Variable Name Format Type Length ML1435F Numeric 8 RumbleStrip Definition: Establishes the presence of a rumble strip, the type of rumble strip, and whether or not the rumble strip was involved in the pre-crash circumstances in terms of this vehicle either departing or not departing the roadway. N Prcnt Code Label 1,990 87.1 0 No rumble strip present 14 0.6 1 Raised rumble strip/no pre-crash departure 2 0.1 2 Raised rumble strip/partial pre-crash departure LTCCS Codebook Environment Data Set • 133 Codebook - Environment Data Set N Prcnt Code Label 1 0.0 3 Raised rumble strip/full pre-crash departure 209 9.2 4 Depressed rumble strip/no pre-crash departure 27 1.2 5 Depressed rumble strip/partial pre-crash departure 33 1.4 6 Depressed rumble strip/full pre-crash departure 8 0.4 9 Unknown Format Type Length Variable Name ML1439F Numeric 8 SightLineRestriction Definition: Establishes sight line restrictions for the driver of this vehicle after measuring the sight distance and comparing it to AASHTO standards. This determination is based on recommended sight distances as established by AASHTO. For safety on a highway, the roadway designer must provide sight distance of sufficient length that drivers can control the operation of their vehicle to avoid striking an unexpected object on the travel way. N Prcnt Code Label 2,237 97.9 1 No 27 1.2 2 Yes (specify) 20 0.9 9 Unknown Format Type Length Variable Name OT52F Numeric 8 SightLineDistance Definition: The measured sight line distance (in meters) represents the distance along the roadway that an object of specified height is continuously visible to the driver. This distance is dependent on the height of the driver’s eye above the road surface, the specified object height above the road surface, and the height of sight obstructions within the line of sight. N Prcnt Code Label 1 0.0 15 15 1 0.0 54 54 1 0.0 64 64 2 0.1 78 78 3 0.1 84 84 1 0.0 85 85 3 0.1 120 120 1 0.0 145 145 4 0.2 150 150 1 0.0 160 160 2 0.1 196 196 2,237 97.9 8887 No sight line restriction, this vehicle 20 0.9 9997 Unknown if sight line restricted, this vehicle 7 0.3 9999 Sight line restriction this vehicle, actual distance not measured. LTCCS Codebook Environment Data Set • 134 Codebook - Environment Data Set Format Type Length Variable Name OT51F Numeric 8 AASHTODistance Definition: Identifies the AASHTO-recommended sight distance (in meters) for the roadway on which the crash occurred. This variable will have a value attached to it when a sight line restriction is suspected and the actual sight distance is measured. The sight distance as measured is then compared to the recommended sight distance for that situation. N Prcnt Code Label 1 0.0 47 47 1 0.0 78 78 1 0.0 82 82 3 0.1 83 83 2 0.1 93 93 1 0.0 109 109 1 0.0 110 110 1 0.0 122 122 1 0.0 130 130 4 0.2 150 150 1 0.0 168 168 2 0.1 174 174 1 0.0 197 197 2 0.1 208 208 2,238 98.0 8887 No sight line restriction, this vehicle 20 0.9 9997 Unknown if sight line restricted, this vehicle 4 0.2 9999 Sight line restriction this vehicle, recommended distance Variable Name Format Type Length AP1U Numeric 8 ENVNoConditions Definition: Documents whether or not there were no adverse atmospheric-related driving conditions just prior to the critical event. (This variable was originally an attribute choice under the variable “Atmospheric Conditions.”) N Prcnt Code Label 358 15.7 0 Absent 1,926 84.3 1 Present Format Type Length Variable Name AP1U Numeric 8 ENVRain Definition: Documents whether or not it was raining just prior to the critical event. (This variable was originally an attribute choice under the variable “Atmospheric Conditions.”) N Prcnt Code Label 2,029 88.8 0 Absent 255 11.2 1 Present LTCCS Codebook Environment Data Set • 135 Codebook - Environment Data Set Variable Name Format Type Length AP1U Numeric 8 ENVSnow Definition: Documents whether or not it was snowing just prior to the critical event. (This variable was originally an attribute choice under the variable “Atmospheric Conditions.”) N Prcnt Code Label 2,242 98.2 0 Absent 42 1.8 1 Present Variable Name Format Type Length AP1U Numeric 8 ENVFog Definition: Documents whether or not fog was present just prior to the critical event. (This variable was originally an attribute choice under the variable “Atmospheric Conditions.”) N Prcnt Code Label 2,243 98.2 0 Absent 41 1.8 1 Present Format Type Length Variable Name AP1U Numeric 8 ENVWindGusts Definition: Documents whether or not heavy wind gusts were present just prior to the critical event. (This variable was originally an attribute choice under the variable “Atmospheric Conditions.”) N Prcnt Code Label 2,279 99.8 0 Absent 5 0.2 1 Present Variable Name Format Type Length AP1U Numeric 8 ENVHail Definition: Documents whether or not hail was falling just prior to the critical event. (This variable was originally an attribute choice under the variable “Atmospheric Conditions.”) N Prcnt Code Label 2,284 100.0 0 Absent LTCCS Codebook Environment Data Set • 136 Codebook - Environment Data Set Format Type Length Variable Name AP1U Numeric 8 ENVSleet Definition: Documents whether or not sleet (frozen or partially frozen raindrops) was falling just prior to the critical event. (This variable was originally an attribute choice under the variable “Atmospheric Conditions.”) N Prcnt Code Label 2,280 99.8 0 Absent 4 0.2 1 Present Variable Name Format Type Length AP1U Numeric 8 ENVDust Definition: Documents whether or not heavy dust (with corresponding limited visibility) was present just prior to the critical event. (This variable was originally an attribute choice under the variable “Atmospheric Conditions.”) N Prcnt Code Label 2,284 100.0 0 Absent Variable Name Format Type Length AP1U Numeric 8 ENVOtherConditions Definition: Documents whether or not there were other adverse atmospheric-related driving conditions present just prior to the critical event that were not identified in the other atmospheric condition variables. (This variable was originally an attribute choice under the variable “Atmospheric Conditions.”) N Prcnt Code Label 2,265 99.2 0 Absent 19 0.8 1 Present LTCCS Codebook Environment Data Set • 137 Codebook – Events Data Set Events Data Set The Events data set contains all details that describe the events occurring during the crash. A record exists for each crash event. The Events data set contains the variables CaseID, PSU, PSUStrat, RATWeight, VehicleNumber and EventSequence. EventSequence identifies a particular event in a sequence in the accident. CaseID and EventSequence uniquely identify each record in this data set. CaseID and EventSequence should be used to merge the Events data set with the CDCCrush data set. CaseID and VehicleNumber should be used to merge the Events data set with vehicle level data sets. Format Type Length Variable Name $2 Char 2 Stratum Definition: Stratum is the letter identifying the CDS sampling classification to which the case is assigned. N Prcnt Code Label 45 1.6 * A 143 5.1 * B 10 0.4 * C 13 0.5 * D 6 0.2 * E 6 0.2 * F 2 0.1 * G 2 0.1 * H 47 1.7 * J 118 4.2 * K 2,385 85.9 * S Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name BEST8 Numeric 8 EventSequence Definition Identifies a particular event in a sequence of the accident. N Prcnt Code Label 1,070 38.5 1 1 709 25.5 2 2 419 15.1 3 3 231 8.3 4 4 126 4.5 5 5 76 2.7 6 6 47 1.7 7 7 27 1.0 8 8 14 0.5 9 9 11 0.4 10 10 7 0.3 11 11 LTCCS Codebook Events Data Set • 138 Codebook – Events Data Set N Prcnt Code Label 5 0.2 12 12 4 0.1 13 13 3 0.1 14 14 2 0.1 15 15 1 0.0 16 16 1 0.0 17 17 1 0.0 18 18 1 0.0 19 19 1 0.0 20 20 1 0.0 21 21 1 0.0 22 22 1 0.0 23 23 1 0.0 24 24 1 0.0 25 25 1 0.0 26 26 1 0.0 27 27 1 0.0 28 28 1 0.0 29 29 1 0.0 30 30 1 0.0 31 31 1 0.0 32 32 1 0.0 33 33 1 0.0 34 34 1 0.0 35 35 1 0.0 36 36 1 0.0 37 37 1 0.0 38 38 1 0.0 39 39 1 0.0 40 40 1 0.0 41 41 Format Type Length Variable Name ML31F Numeric 8 ClassVehicle Definition: Describes the class of vehicle for the first vehicle listed on the Case Form Events tab. This represents the same attribute as that found in the General Vehicle Data Set (“Class Of Vehicle” variable) and that found in the Vehicle Exterior Data Set (“Class Of Vehicle” variable). This classification is based on the size of the vehicle. N Prcnt Code Label 192 6.9 1 Subcompact/mini (wheelbase < 254 cm) 304 10.9 2 Compact (wheelbase >= 254 but < 265 cm) 295 10.6 3 Intermediate (wheelbase >= 265 but < 278 cm) LTCCS Codebook Events Data Set • 139 Codebook – Events Data Set N Prcnt Code Label 90 3.2 4 Full Size (wheelbase >= 278 but < 291 cm) 30 1.1 5 Largest (wheelbase >= 291 cm) 14 0.5 9 Unknown passenger car size 136 4.9 14 Compact utility vehicle 21 0.8 15 Large utility vehicle ( <= 4,536 kgs GVWR) 7 0.3 16 Utility station wagon ( <= 4,536 kgs GVWR) 1 0.0 19 Unknown utility type 82 3.0 20 Minivan ( <= 4,536 kgs GVWR) 55 2.0 21 Large van ( <= 4,536 kgs GVWR) 3 0.1 28 Other van type ( <= 4,536 kgs GVWR) 1 0.0 29 Unknown van type ( <= 4,536 kgs GVWR) 91 3.3 30 Compact pickup truck ( <= 4,536 kgs GVWR) 127 4.6 31 Large pickup truck ( <= 4,536 kgs GVWR) 2 0.1 38 Other pickup truck type ( <= 4,536 kgs GVWR) 9 0.3 45 Other light truck ( <= 4,536 kgs GVWR) 3 0.1 58 Other bus (>4,536 kgs GVWR) 358 12.9 60 Truck (>4,536 kgs GVWR) 41 1.5 67 Tractor without trailer 901 32.4 68 Tractor-trailer(s) 2 0.1 78 Unknown medium/heavy truck type 12 0.4 80 Motored cycle Format Type Length Variable Name $OT24F Char 1 DamageArea Definition: Describes the general area of damage on the first vehicle. N Prcnt Code Label 20 0.7 9 Unknown 172 6.2 B Back/Bk of unit with cargo area=rear of trailer of straight truck 1 0.0 C Rear of cab 9 0.3 D Back (rear of tractor) 1,216 43.8 F Front 504 18.1 L Left Side 168 6.0 N Noncollision 496 17.9 R Right Side 149 5.4 T Top 33 1.2 U Undercarriage 9 0.3 V Front of cargo area LTCCS Codebook Events Data Set • 140 Codebook – Events Data Set Format Type Length Variable Name ML34F Numeric 8 EVEObjectContact Definition: Dscribes the object or vehicle that was contacted by each vehicle in the case. N Prcnt Code Label 180 6.5 1 Vehicle#1 779 28.1 2 Vehicle#2 252 9.1 3 Vehicle#3 80 2.9 4 Vehicle#4 40 1.4 5 Vehicle#5 15 0.5 6 Vehicle#6 1 0.0 7 Vehicle#7 5 0.2 8 Vehicle#8 1 0.0 11 Vehicle#11 2 0.1 13 Vehicle#13 2 0.1 14 Vehicle#14 2 0.1 16 Vehicle#16 2 0.1 17 Vehicle#17 2 0.1 18 Vehicle#18 1 0.0 19 Vehicle#19 1 0.0 20 Vehicle#20 1 0.0 23 Vehicle#23 1 0.0 25 Vehicle#25 1 0.0 26 Vehicle#26 2 0.1 27 Vehicle#27 1 0.0 28 Vehicle#28 5 0.2 30 Vehicle#30 313 11.3 31 Overturn->rollover(excludes end-over-end) 1 0.0 32 Rollover->end-over-end 66 2.4 33 Fire or explosion 67 2.4 34 Jackknife 19 0.7 35 Other intraunit damage (specify) 1 0.0 36 Noncollision injury 15 0.5 38 Other noncollision (specify) 14 0.5 41 Tree(<= 10 cm in diameter) 44 1.6 42 Tree(> 10 cm in diameter) 9 0.3 43 Shrubbery or bush 23 0.8 44 Embankment 24 0.9 45 Breakaway pole or post (any diameter) 34 1.2 50 Nonbreakaway pole or post (<=10cm in diameter) 38 1.4 51 Nonbreakaway pole or post(>10 cm but <= 30 cm in diameter) 13 0.5 52 Nonbreakaway pole or post(>30 cm in diameter) LTCCS Codebook Events Data Set • 141 Codebook – Events Data Set N Prcnt Code Label 6 0.2 53 Nonbreakaway pole or post(diameter unknown) 195 7.0 54 Concrete traffic barrier 6 0.2 55 Impact attenuator 163 5.9 56 Other traffic barrier(includes guardrail) (specify) 31 1.1 57 Fence 20 0.7 58 Wall 4 0.1 59 Building 14 0.5 60 Ditch or culvert 20 0.7 61 Ground 2 0.1 62 Fire hydrant 27 1.0 63 Curb 30 1.1 64 Bridge 24 0.9 68 Other fixed object (specify) 1 0.0 69 Unknown fixed object 23 0.8 70 Pass. car,light truck,van,or other vehicle not in-transport 1 0.0 71 Medium/heavy truck or bus not in-transport 39 1.4 72 Pedestrian 9 0.3 73 Cyclist or cycle 2 0.1 75 Vehicle occupant 1 0.0 76 Animal 8 0.3 77 Train 4 0.1 78 Trailer, disconnected in transport 39 1.4 79 Object fell from vehicle in-transport 26 0.9 88 Other nonfixed object (specify) 14 0.5 98 Other event (specify) 11 0.4 99 Unknown event or object Variable Name Format Type Length ML31F Numeric 8 ClassVehicle2 Definition: Describes the class of vehicle for the second vehicle listed on the Case Form Events tab (if the collision was between two vehicles). This represents the same attribute as that found in the General Vehicle Data Set (“Class Of Vehicle” variable) and that found in the Vehicle Exterior Data Set (“Class Of Vehicle” variable). This classification is based on the size of the vehicle. N Prcnt Code Label 1,401 50.5 0 Not a motor vehicle 56 2.0 1 Subcompact/mini (wheelbase < 254 cm) 77 2.8 2 Compact (wheelbase >= 254 but < 265 cm) 59 2.1 3 Intermediate (wheelbase >= 265 but < 278 cm) 23 0.8 4 Full Size (wheelbase >= 278 but < 291 cm) 14 0.5 5 Largest (wheelbase >= 291 cm) 8 0.3 9 Unknown passenger car size LTCCS Codebook Events Data Set • 142 Codebook – Events Data Set N Prcnt Code Label 56 2.0 14 Compact utility vehicle 6 0.2 15 Large utility vehicle ( <= 4,536 kgs GVWR) 7 0.3 16 Utility station wagon ( <= 4,536 kgs GVWR) 28 1.0 20 Minivan ( <= 4,536 kgs GVWR) 14 0.5 21 Large van ( <= 4,536 kgs GVWR) 1 0.0 24 Van Based school bus ( <= 4,536 kgs GVWR) 1 0.0 28 Other van type ( <= 4,536 kgs GVWR) 18 0.6 30 Compact pickup truck ( <= 4,536 kgs GVWR) 48 1.7 31 Large pickup truck ( <= 4,536 kgs GVWR) 1 0.0 39 Unknown pick up truck (<=4,536 kgs GVWR) 6 0.2 45 Other light truck ( <= 4,536 kgs GVWR) 1 0.0 48 Unknown light truck type ( <= 4,536 kgs GVWR) 1 0.0 50 School bus (excludes van based)(>4,536 kgs GVWR) 4 0.1 58 Other bus (>4,536 kgs GVWR) 254 9.1 60 Truck (>4,536 kgs GVWR) 32 1.2 67 Tractor without trailer 648 23.3 68 Tractor-trailer(s) 4 0.1 78 Unknown medium/heavy truck type 1 0.0 79 Unknown light/medium/heavy truck type 5 0.2 80 Motored cycle 3 0.1 90 Other vehicle Format Type Length Variable Name $OT24F Char 1 DamageArea2 Definition: Describes the general area of damage on the second vehicle (if the collision was between two vehicles). N Prcnt Code Label 919 33.1 0 Not a motor vehicle 3 0.1 9 Unknown 389 14.0 B Back/Bk of unit with cargo area=rear of trailer of straight truck 15 0.5 D Back (rear of tractor) 400 14.4 F Front 314 11.3 L Left Side 482 17.4 N Noncollision 213 7.7 R Right Side 14 0.5 T Top 21 0.8 U Undercarriage 7 0.3 V Front of cargo area LTCCS Codebook Events Data Set • 143 Codebook – FactorAssessment Data Set FactorAssessment Data Set The FactorAssessment data set contains a variety of data supporting the analyst’s assessment. It focuses particularly on roadway, environment, and vehicle-related factors. One record of this information exists for each vehicle. The FactorAssessment data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the FactorAssessment data set with other vehicle level data sets. Format Type Length Variable Name AP1U Numeric 8 NoTraffic Definition: Establishes whether or not there are no traffic flow interruption factors relevant to the crash. (This variable was originally an attribute choice under the variable “Traffic Flow Interruption Factors.”) N Prcnt Code Label 755 33.1 0 Absent 1,529 66.9 1 Present Variable Name Format Type Length AP1U Numeric 8 AFTPreviousCrash Definition: Establishes whether or not traffic flow at the crash site is interrupted by a previous crash located near this site. (This variable was originally an attribute choice under the variable “Traffic Flow Interruption Factors.”) N Prcnt Code Label 2,167 94.9 0 Absent 117 5.1 1 Present Format Type Length Variable Name AP1U Numeric 8 ConstructionZone Definition: Establishes whether or not traffic flow at the crash site is interrupted as a result of the crash site being located in a construction work zone. (This variable was originally an attribute choice under the variable “Traffic Flow Interruption Factors.”) N Prcnt Code Label 2,084 91.2 0 Absent 200 8.8 1 Present LTCCS Codebook FactorAssessment Data Set • 144 Codebook – FactorAssessment Data Set Format Type LengthVariable Name AP1U Numeric 8 EmergencyVehicle Definition: Establishes whether or not traffic flow at the crash site is interrupted as a result of an emergency vehicle approaching from either direction. (This variable was originally an attribute choice under the variable “Traffic Flow Interruption Factors.”) N Prcnt Code Label 2,270 99.4 0 Absent 14 0.6 1 Present Variable Name Format Type Length AP1U Numeric 8 RushHour Definition: Establishes whether or not traffic flow at the crash site is interrupted as a result of rush hour traffic congestion. (This variable was originally an attribute choice under the variable “Traffic Flow Interruption Factors.”) N Prcnt Code Label 2,065 90.4 0 Absent 219 9.6 1 Present Format Type Length Variable Name AP1U Numeric 8 OtherTraffic Definition: Establishes whether or not traffic flow at the crash site is interrupted as a result of a factor not described in the other traffic flow variables. (This variable was originally an attribute choice under the variable “Traffic Flow Interruption Factors” and was the “Other (specify):” attribute choice.) N Prcnt Code Label 2,024 88.6 0 Absent 260 11.4 1 Present Variable Name Format Type Length $50 Char 50 OtherTrafficSpecify Definition: Documents the “specify” text that was included where the “Other Traffic Flow Interruption” variable (above) was coded as being present for this driver. N Prcnt Code Label 2,024 88.6 * 1 0.0 * A bycycle had fallen off of a polce vehicle and wa 2 0.1 * A surrogate interview with the passenger of vehicl 3 0.1 * As v3 came to rest, it blocked all 3 travel lanes 1 0.0 * As v3 came to rest, it blocked all 3 travel lanes. 4 0.2 * Congested traffic not during rush hour. Unknown r LTCCS Codebook FactorAssessment Data Set • 145 Codebook – FactorAssessment Data Set N Prcnt Code Label 2 0.1 * Congested traffic, not during rush hour. Reason f 1 0.0 * Congested traffic, reason unknown. 4 0.2 * Congested traffic, unknown reason for the congesti 3 0.1 * Congested traffic, unknown reason. ------------------------------ 1 0.0 * traffic stopped to allow non-contact vehicle with 1 0.0 * travelling in a school zone with pedestrians on th 1 0.0 * truck (V2) created traffic flow interruption 1 0.0 * truck blocked travel lanes 1 0.0 * truck blocking travel lanes 1 0.0 * truck was stopped, blocking sole northbound lane o 1 0.0 * vehicle in his traffic lane stopped to turn left a 1 0.0 * vehicle one (police car with lights activated) leg 2 0.1 * vehicle two was backing into roadway without a fla 1 0.0 * vehicles stopped in lane Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length AP3U Numeric 8 VehicleDefectCount Definition: Documents the total number of vehicle condition-related factors coded to this vehicle. N Prcnt Code Label 1,652 72.3 0 0 383 16.8 1 1 107 4.7 2 2 32 1.4 3 3 6 0.3 4 4 1 0.0 6 6 103 4.5 99 Unknown Format Type Length Variable Name AP1U Numeric 8 LoadObstructedView Definition: Establishes whether or not the driver experiences a view obstruction that is related to the vehicle’s load. Typically in this circumstance, the obstruction is related to oversize cargo. Less frequently occurring however, is the circumstance where the obstruction is related to improper loading of the cargo. Both of these situations are included in this designation. (This variable was originally an attribute choice under the variable “Vehicle Condition Related Factors.”) N Prcnt Code Label 2,284 100.0 0 Absent LTCCS Codebook FactorAssessment Data Set • 146 Codebook – FactorAssessment Data Set Format Type LengthVariable Name AP1U Numeric 8 DesignedObstructedView Definition: Establishes whether or not the driver experiences a view obstruction that is related to vehicle design (e.g. view blocked by upper A-pillar). (This variable was originally an attribute choice under the variable “Vehicle Condition Related Factors.”) N Prcnt Code Label 2,272 99.5 0 Absent 12 0.5 1 Present Variable Name Format Type Length AP1U Numeric 8 OtherViewObstruction Definition: Establishes whether or not the driver experiences a view obstruction that is related to a factor not described in the other view obstruction variables. (This variable was originally an attribute choice under the variable “Vehicle Condition Related Factors.”) N Prcnt Code Label 2,274 99.6 0 Absent 10 0.4 1 Present Format Type Length Variable Name AP1U Numeric 8 TireFailure Definition: Establishes whether or not the vehicle experiences a tire malfunction (e.g. blowout, airout, etc.) during the precrash phase. (This variable was originally an attribute choice under the variable “Vehicle Condition Related Factors.”) N Prcnt Code Label 2,264 99.1 0 Absent 20 0.9 1 Present Variable Name Format Type Length AP1U Numeric 8 BrakeFailure Definition: Establishes whether or not the vehicle experiences a braking system malfunction during the precrash phase. NOTE: Degraded braking performance (i.e. out-of-adjustment) is coded under the “Brakes Out-Of-Adjustment” variable. (This variable was originally an attribute choice under the variable “Vehicle Condition Related Factors.”) N Prcnt Code Label 2,272 99.5 0 Absent 12 0.5 1 Present LTCCS Codebook FactorAssessment Data Set • 147 Codebook – FactorAssessment Data Set Format Type Length Variable Name AP1U Numeric 8 TransmissionFailure Definition: Establishes whether or not the vehicle experiences a transmission malfunction during the precrash phase. (This variable was originally an attribute choice under the variable “Vehicle Condition Related Factors.”) N Prcnt Code Label 2,257 98.8 0 Absent 27 1.2 1 Present Variable Name Format Type Length AP1U Numeric 8 EngineProblem Definition: Establishes whether or not the vehicle experiences an engine-related problem during the precrash phase. Examples of engine-related problems include stalling, missing, and throttle problems. (This variable was originally an attribute choice under the variable “Vehicle Condition Related Factors.”) N Prcnt Code Label 2,276 99.6 0 Absent 8 0.4 1 Present Variable Name Format Type Length AP1U Numeric 8 OtherDefect Definition: Establishes whether or not the vehicle experiences a problem/exhibits a condition during the precrash phase that is relevant to crash occurrence, but is not described by other vehicle condition variables. (This variable was originally an attribute choice under the variable “Vehicle Condition Related Factors” and was the “Other (specify):” attribute choice.) N Prcnt Code Label 2,271 99.4 0 Absent 13 0.6 1 Present Format Type Length Variable Name $50 Char 50 OtherDefectSpecify Definition: Documents the “specify” text that was included where the “Other Vehicle Condition” variable (above) was coded as being present for this driver. N Prcnt Code Label 2,271 99.4 * 1 0.0 * Driver had stopped to find the source of a dash li 1 0.0 * Driver said he was going slow (7-10 MPH) to save h 1 0.0 * Intersecting cracks in windshield 1 0.0 * Per driver, the speedometer not working. LTCCS Codebook FactorAssessment Data Set • 148 Codebook – FactorAssessment Data Set N Prcnt Code Label 1 0.0 * Valve operating the dump trailer became engaged. 1 0.0 * Vehicle decelerated on interstate for an unknown m 1 0.0 * air conditioner not working 1 0.0 * airline rubbing on deck between tractor and traile 1 0.0 * hood flew up; caused previous crash 1 0.0 * hood latch failure 1 0.0 * out of gas 1 0.0 * tailgate not securred 1 0.0 * trailer damaged, top piece loose Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name AP1U Numeric 8 TireDeficiency Definition: Establishes whether or not the vehicle had a tire deficiency prior to the crash event (e.g. low tread depth on one or more tires). N Prcnt Code Label 2,213 96.9 0 Absent 71 3.1 1 Present Format Type Length Variable Name AP1U Numeric 8 BrakesOutOfAdjustment Definition: Establishes whether or not any of the vehicle’s brakes were out-of-adjustment during the precrash phase. This variable applies only to heavy trucks. N Prcnt Code Label 2,060 90.2 0 Absent 224 9.8 1 Present Variable Name Format Type Length AP1U Numeric 8 BrakesInoperative Definition: Establishes whether or not any of the vehicle’s brakes were inoperative during the precrash phase. This variable applies only to heavy trucks. N Prcnt Code Label 2,258 98.9 0 Absent 26 1.1 1 Present LTCCS Codebook FactorAssessment Data Set • 149 Codebook – FactorAssessment Data Set Format Type LengthVariable Name AP1U Numeric 8 Definition: Establishes whether or not there were any braking system deficiencies prior to the crash that are not described in the other braking variables. BrakesSystemDeficiency N Prcnt Code Label 2,145 93.9 0 Absent 139 6.1 1 Present Variable Name Format Type Length AP1U Numeric 8 VehicleOverweight Definition: Establishes whether or not the vehicle was overweight prior to the precrash phase. This variable applies to heavy trucks only, and has to do with local ordinances as they relate to a truck’s GVWR (gross vehicle weight rating). N Prcnt Code Label 2,246 98.3 0 Absent 38 1.7 1 Present Format Type LengthVariable Name AP1U Numeric 8 VehicleLightingDeficiency Definition: Establishes whether or not the vehicle had a lighting system deficiency during the precrash phase (e.g. a turn signal or headlight out). N Prcnt Code Label 2,245 98.3 0 Absent 39 1.7 1 Present Variable Name Format Type Length AP1U Numeric 8 CargoLoadSecurement Definition: Establishes whether or not the vehicle’s cargo was improperly secured prior to the crash event. N Prcnt Code Label 2,254 98.7 0 Absent 30 1.3 1 Present LTCCS Codebook FactorAssessment Data Set • 150 Codebook – FactorAssessment Data Set Format Type Length Variable Name AP1U Numeric 8 Definition: Establishes whether or not the vehicle had a suspension or frame deficiency prior to the SuspensionFrameDeficiency crash event. N Prcnt Code Label 2,264 99.1 0 Absent 20 0.9 1 Present Variable Name Format Type Length AP1U Numeric 8 TowingUnitProblem Definition: Establishes whether or not the there was a problem with the towing unit of an articulated vehicle (this variable usually applies only to trucks). N Prcnt Code Label 2,273 99.5 0 Absent 11 0.5 1 Present Format Type LengthVariable Name AP1U Numeric 8 ReflectiveTapeMissingObscured Definition: Establishes whether or not the vehicle’s reflective tape was missing or obscured in some manner. This variable only applies to heavy trucks and has to do with FMCSA reflective tape requirements. N Prcnt Code Label 2,277 99.7 0 Absent 7 0.3 1 Present Variable Name Format Type Length AP1U Numeric 8 FuelSystemProblem Definition: Establishes whether or not the vehicle experienced a problem that is related to its fuel system during the precrash phase. N Prcnt Code Label 2,280 99.8 0 Absent 4 0.2 1 Present LTCCS Codebook FactorAssessment Data Set • 151 Codebook – FactorAssessment Data Set Format Type Length Variable Name AP1U Numeric 8 ExhaustLeak Definition: Establishes whether or not the vehicle experienced an exhaust leak during the precrash phase. N Prcnt Code Label 2,277 99.7 0 Absent 7 0.3 1 Present Variable Name Format Type Length AP1U Numeric 8 SteeringWheelProblem Definition: Establishes whether or not the vehicle experienced a steering-related problem during the precrash phase. N Prcnt Code Label 2,276 99.6 0 Absent 8 0.4 1 Present Format Type Length Variable Name OT21F Numeric 8 MedianWidth Definition: Documents the measured median width (in meters) when a roadway geometry factor has been identified involving a crossover. This value is provided when the “Roadway Geometry” variable is coded as being present. N Prcnt Code Label 7 0.3 8887 Not applicable 2,277 99.7 9999 Unknown Variable Name Format Type Length OT21F14.1 Numeric 8 AFTCurveRadius Definition: Documents the measured radius of curvature (in meters) for the roadway on which the crash occurred. This value is specified when the “Roadway Geometry (Curve)” variable is coded as being present. N Prcnt Code Label 1 0.0 22.1 22.1 1 0.0 40.2 40.2 1 0.0 40.5 40.5 1 0.0 43 43.0 2 0.1 54.6 54.6 1 0.0 57.1 57.1 1 0.0 63.4 63.4 LTCCS Codebook FactorAssessment Data Set • 152 Codebook – FactorAssessment Data Set N Prcnt Code Label 1 0.0 71 71.0 1 0.0 81 81.0 1 0.0 94 94.0 1 0.0 94.3 94.3 1 0.0 94.4 94.4 2 0.1 102 102.0 1 0.0 104 104.0 1 0.0 108 108.0 1 0.0 112 112.0 1 0.0 141 141.0 1 0.0 161 161.0 1 0.0 187 187.0 1 0.0 225 225.0 2 0.1 281 281.0 3 0.1 300 300.0 1 0.0 375 375.0 2,256 98.8 9999 Unknown Variable Name Format Type Length SightDistance OT21F Numeric 8 Definition: Documents the measured sight distance in meters when the “Road Sight Distance Insufficient” variable is coded as being present. N Prcnt Code Label 1 0.0 54 54 1 0.0 70 70 1 0.0 78 78 2 0.1 84 84 1 0.0 85 85 1 0.0 120 120 1 0.0 160 160 2,276 99.6 9999 Unknown Format Type Length Variable Name OT21F14.1 Numeric 8 AASHTORecommended Definition: Documents the AASHTO recommended sight distance in meters for this vehicle in the precrash phase. This value is specified when the “Road Sight Distance Insufficient” variable is coded as being present. N Prcnt Code Label 1 0.0 72.2 72.2 1 0.0 78 78.0 LTCCS Codebook FactorAssessment Data Set • 153 Codebook – FactorAssessment Data Set N Prcnt Code Label 1 0.0 82 82.0 1 0.0 83 83.0 2 0.1 93 93.0 1 0.0 130 130.0 1 0.0 168 168.0 2,276 99.6 9999 Unknown Format Type Length Variable Name AP3U Numeric 8 RoadwayFactorCount Definition: Documents the number of roadway-related factors that were coded for this vehicle. N Prcnt Code Label 1,832 80.2 0 0 395 17.3 1 1 17 0.7 2 2 7 0.3 3 3 1 0.0 4 4 22 1.0 77 No Driver Present 10 0.4 99 Unknown Format Type Length Variable Name AP1U Numeric 8 SignsMissing Definition: Documents whether or not traffic signs/signals have been removed from the designated location and are not physically present. The removal can be associated with either a repair function or vandalism. (This variable was originally an attribute choice under the variable “Roadway Related Factors.”) N Prcnt Code Label 2,265 99.2 0 Absent 19 0.8 1 Present Variable Name Format Type Length AP1U Numeric 8 ObjectObscured Definition: Documents whether or not there is a view obstruction associated with roadway design including such added devices as signal boxes, signal light support poles, guardrails, and crash cushions. (This variable was originally an attribute choice under the variable “Roadway Related Factors.”) N Prcnt Code Label 2,281 99.9 0 Absent 3 0.1 1 Present LTCCS Codebook FactorAssessment Data Set • 154 Codebook – FactorAssessment Data Set Format Type Length Variable Name AP1U Numeric 8 VehicleObscured Definition: Documents whether or not the driver’s view is obstructed by an intervening vehicle. (This variable was originally an attribute choice under the variable “Roadway Related Factors.”) N Prcnt Code Label 2,275 99.6 0 Absent 9 0.4 1 Present Variable Name Format Type Length AP1U Numeric 8 RoadGeometry Definition: Documents whether or not roadway geometry, usually in the form of a curve, is relevant to the crash. (This variable was originally an attribute choice under the variable “Roadway Related Factors.”) N Prcnt Code Label 2,254 98.7 0 Absent 30 1.3 1 Present Format Type LengthVariable Name AP1U Numeric 8 InsufficientSight Definition: Documents whether or not the measured sight distance on this roadway does not meet the standard as specified in AASHTO. (This variable was originally an attribute choice under the variable “Roadway Related Factors.”) N Prcnt Code Label 2,276 99.6 0 Absent 8 0.4 1 Present Variable Name Format Type Length AP1U Numeric 8 BadLaneMarkings Definition: Documents whether or not the driver encounters difficulty as a result of lane delineation. The delineation markings in this circumstance may not be present, may be worn (i.e. reduced visibility), or may be covered in some manner (e.g. gravel, debris, etc.). (This variable was originally an attribute choice under the variable “Roadway Related Factors.”) N Prcnt Code Label 2,274 99.6 0 Absent 10 0.4 1 Present LTCCS Codebook FactorAssessment Data Set • 155 Codebook – FactorAssessment Data Set Format Type Length Variable Name AP1U Numeric 8 NarrowShoulders Definition: Documents whether or not the driver experiences a problem as a result of the shoulder, which is not sufficiently wide. While circumstances will vary depending on location, shoulder width should be less than 1.5 meters to qualify for this designation. (This variable was originally an attribute choice under the variable “Roadway Related Factors.”) N Prcnt Code Label 2,279 99.8 0 Absent 5 0.2 1 Present Format Type Length Variable Name AP1U Numeric 8 NarrowRoad Definition: Documents whether or not the driver experiences a problem as a result of insufficient roadway width. While circumstances will vary depending on the type of roadway, two-lane roadways should be less than 20 feet (6.1 meters) in width to qualify for this designation. (This variable was originally an attribute choice under the variable “Roadway Related Factors.”) N Prcnt Code Label 2,284 100.0 0 Absent Variable Name Format Type Length AP1U Numeric 8 RampSpeed Definition: Documents whether or not the posted ramp entrance/exit speed is inappropriate. This includes circumstances where the posted speed is adequate for one class of vehicle, but is too high for another class of vehicle (e.g. adequate for automobiles, but too high for large trucks). (This variable was originally an attribute choice under the variable “Roadway Related Factors.”) N Prcnt Code Label 2,280 99.8 0 Absent 4 0.2 1 Present Variable Name Format Type Length AP1U Numeric 8 PoorCondition Definition: Documents whether or not the driver encounters a problem as a result of a roadway maintenance condition. Specific areas of concern include potholes, deteriorated/broken road edges, washboard areas, and depressions where a localized area of the surface has sunk several inches or more. (This variable was originally an attribute choice under the variable “Roadway Related Factors.”) N Prcnt Code Label 2,278 99.7 0 Absent 6 0.3 1 Present LTCCS Codebook FactorAssessment Data Set • 156 Codebook – FactorAssessment Data Set Format Type Length Variable Name AP1U Numeric 8 SlickSurface Definition: Documents whether or not the driver encounters a low friction surface most commonly associated with an icy condition. There are several other circumstances that can be associated with a pronounced reduction of friction values. These include loose gravel/sand spread over a paved surface and oil build-ups. Typically, wet surfaces are not included in this designation unless moisture adds to an existing condition such as an oil build-up. (This variable was originally an attribute choice under the variable “Roadway Related Factors.”) N Prcnt Code Label 2,029 88.8 0 Absent 255 11.2 1 Present Format Type Length Variable Name AP1U Numeric 8 UnderWater Definition: Documents whether or not one or more travel lane is completely covered with water. (This variable was originally an attribute choice under the variable “Roadway Related Factors.”) N Prcnt Code Label 2,282 99.9 0 Absent 2 0.1 1 Present Variable Name Format Type Length AP1U Numeric 8 WashedOut Definition: Documents whether or not a portion of the roadway collapses/washes away as a result of exposure to running water. (This variable was originally an attribute choice under the variable “Roadway Related Factors.”) N Prcnt Code Label 2,284 100.0 0 Absent Format Type Length Variable Name AP1U Numeric 8 OtherProblem Definition: Documents whether or not the driver encounters a roadway problem that is not described by the other roadway-related variables. (This variable was originally an attribute choice under the variable “Roadway Related Factors” and was the “Other (specify):” attribute choice.) N Prcnt Code Label 2,181 95.5 0 Absent 103 4.5 1 Present LTCCS Codebook FactorAssessment Data Set • 157 Codebook – FactorAssessment Data Set Format Type Length Variable Name $50 Char 50 OtherProblemSpecify Definition: Documents the “specify” text that was included where the “Other Roadway Related Factor” variable (above) was coded as being present for this driver. N Prcnt Code Label 2,181 95.5 * 2 0.1 * A right hand passing lane versus a plain T interse 1 0.0 * Curve warning sign not posted 1 0.0 * Debris (piece of metal) lying in roadway 1 0.0 * Dip in road located at the end of a downhill grade 3 0.1 * Due to ongoing construction, shoulders were being 1 0.0 * Flatbed tarp lying in roadway (debris) 1 0.0 * GRADE. 1 0.0 * INSUFFICIENT DISTANCE BETWEEN R.R. TRACKS AND 1 0.0 * Inappropriate speed advisory sign 3 0.1 * Insufficient median width (10.1-meters) for length 1 0.0 * Insufficient signage for curve 1 0.0 * Lack of curve warning signs 1 0.0 * Lack of overhead street light illumination. 1 0.0 * Lack of street light illumination 4 0.2 * Lane drop 5 0.2 * Lane restriction due to construction. 1 0.0 * Low hanging utility cable 2 0.1 * No overhead lighting. 1 0.0 * No overhead street lights in vicinity of crash. 1 0.0 * No ramp speed reduction signage 1 0.0 * No roadway overhead roadway illunination. 1 0.0 * No signs to indicate the double s-curve 2 0.1 * POOR ROAD DESIGN IF TRUCKS MUST CROSS 2 0.1 * Per design standards on rural hi-speed divided hig 1 0.0 * ROAD VIEW OBSTRUCTION DUE TO CONSTRUCTION 1 0.0 * Road was in a work zone with cones, missing signs, 3 0.1 * Road was wet 1 0.0 * Roadway not illuminated with street lighting, driv 1 0.0 * Roadway under construction. 2 0.1 * Roadway was reportedly wet, but it was not raining 1 0.0 * Roadway was underconstruction with no lane marking 1 0.0 * Roadway was wet. It is also unknown if sight line 1 0.0 * There was no improved shoulder adjacent to the rig 2 0.1 * Though it was daytime, the inside of the tunnel wa 1 0.0 * Unstabilized and soft shoulder 1 0.0 * Weed covered fence blocks view of driveway LTCCS Codebook FactorAssessment Data Set • 158 Codebook – FactorAssessment Data Set N Prcnt Code Label 2 0.1 * entrance ramp merges from left into fast lane 2 0.1 * exit ramp located on left 1 0.0 * flatbed tarp lying in roadway 1 0.0 * incorrect bridge height sign; lack of "out" once o 1 0.0 * incorrect bridge height sign; lack of an "out" onc 2 0.1 * incorrect overpass height sign 1 0.0 * insufficient distance form railroad track to main 1 0.0 * insufficient distance from northbound lane to rail 1 0.0 * insufficient distance from railroad tracks to main 2 0.1 * left merge into high speed lane 2 0.1 * narrow bridge 1 0.0 * negative superelevation. 1 0.0 * no curve warning signs posted on this ramp. Shoul 2 0.1 * overhead lights not working 2 0.1 * road was wet 1 0.0 * roadway was wet 2 0.1 * roadway wet with heavy rain 1 0.0 * short (3-second) left turn arrow 1 0.0 * sight line distance barely met AASHTO requirement 1 0.0 * stop sign with crossbucks is insufficient for a TC 2 0.1 * through lane was snow-covered 1 0.0 * unstabilized and soft shoulder 2 0.1 * unusual sequencing of traffic signal 15 0.7 * wet roadway Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length AP2U Numeric 8 WeatherCount Definition: Documents the number of weather related factors that were coded for this vehicle. N Prcnt Code Label 1,922 84.2 0 0 331 14.5 1 1 9 0.4 2 2 22 1.0 7 No Driver Present LTCCS Codebook FactorAssessment Data Set • 159 Codebook – FactorAssessment Data Set Format Type Length Variable Name AP1U Numeric 8 AFTRain Definition: Establishes whether or not it was raining at the time of the crash. (This variable was originally an attribute choice under the variable “Weather Related Factors.”) N Prcnt Code Label 2,040 89.3 0 Absent 244 10.7 1 Present Variable Name Format Type Length AP1U Numeric 8 AFTSnow Definition: Establishes whether or not it was snowing at the time of the crash. (This variable was originally an attribute choice under the variable “Weather Related Factors.”) N Prcnt Code Label 2,250 98.5 0 Absent 34 1.5 1 Present Format Type LengthVariable Name AP1U Numeric 8 AFTFog Definition: Establishes whether or not the driver was operating in fog at the time of the crash. (This variable was originally an attribute choice under the variable “Weather Related Factors.”) N Prcnt Code Label 2,242 98.2 0 Absent 42 1.8 1 Present Format Type LengthVariable Name AP1U Numeric 8 WindGust Definition: Establishes whether or not a wind gust occurs prior to the crash and has some relevance to the crash. (This variable was originally an attribute choice under the variable “Weather Related Factors.”) N Prcnt Code Label 2,278 99.7 0 Absent 6 0.3 1 Present LTCCS Codebook FactorAssessment Data Set • 160 Codebook – FactorAssessment Data Set Format Type Length Variable Name AP1U Numeric 8 AFTHail Definition: Establishes whether or not the driver was operating in hail at the time of the crash. (This variable was originally an attribute choice under the variable “Weather Related Factors.”) N Prcnt Code Label 2,284 100.0 0 Absent Variable Name Format Type Length AP1U Numeric 8 AFTSleet Definition: Establishes whether or not the driver was operating in sleet at the time of the crash. (This variable was originally an attribute choice under the variable “Weather Related Factors.”) N Prcnt Code Label 2,274 99.6 0 Absent 10 0.4 1 Present Format Type Length Variable Name AP1U Numeric 8 OtherWeather Definition: Establishes whether or not there is a relevant weather related factor that is not described in the other weather variables. (This variable was originally an attribute choice under the variable “Weather Related Factors” and was the “Other (specify):” attribute choice.) N Prcnt Code Label 2,271 99.4 0 Absent 13 0.6 1 Present Variable Name Format Type Length $50 Char 50 OtherWeatherSpecify Definition: Documents the “specify” text that was included where the “Other Weather Related Factor” variable (above) was coded as being present for this driver. N Prcnt Code Label 2,271 99.4 * 1 0.0 * It was cloudy outside and the roadway was wet from 1 0.0 * Misting and roadway wet from prior rain. 1 0.0 * Temperature at 30 degrees could have been causing 2 0.1 * There was a prior hail storm that caused the roads 1 0.0 * Windy conditions 1 0.0 * misting and road wet from prior rain. LTCCS Codebook FactorAssessment Data Set • 161 Codebook – FactorAssessment Data Set N Prcnt Code Label 4 0.2 * rain-soaked roadway 2 0.1 * temperature at 30 degrees could have been causing Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length AP2U Numeric 8 EnvironmentCount Definition: Documents the number of environmental factors that were coded for this vehicle. N Prcnt Code Label 2,264 99.1 0 0 15 0.7 1 1 5 0.2 9 Unknown Variable Name Format Type Length AP1U Numeric 8 Glare Definition: Establishes whether or not glare in some form is relevant to the crash for this driver. Examples include headlight glare, sun glare, and reflected glare (i.e. sun reflecting off a windshield or other metal component). (This variable was originally an attribute choice under the variable “Other Environmental Factors.”) N Prcnt Code Label 2,271 99.4 0 Absent 13 0.6 1 Present Format Type Length Variable Name AP1U Numeric 8 BlowingDebris Definition: Establishes whether or not this driver is exposed to some form of blowing debris. Examples include paper, cardboard boxes, and tree limbs. (This variable was originally an attribute choice under the variable “Other Environmental Factors.”) N Prcnt Code Label 2,284 100.0 0 Absent Format Type Length Variable Name AP1U Numeric 8 Smoke Definition: Establishes whether or not the driver’s view is obscured by the presence of smoke (e.g. smoke from a grass fire, house fire, or forest fire). (This variable was originally an attribute choice under the variable “Other Environmental Factors.”) N Prcnt Code Label 2,284 100.0 0 Absent LTCCS Codebook FactorAssessment Data Set • 162 Codebook – FactorAssessment Data Set Format Type Length Variable Name AP1U Numeric 8 AFTNoDriver Definition: Establishes whether or not there was no driver in the driver’s seated position at the time of the crash. (This variable was originally an attribute choice under the variable “Weather Related Factors.”) N Prcnt Code Label 2,284 100.0 0 Absent Format Type Length Variable Name AP1U Numeric 8 OtherChangeSpecify Definition: Establishes whether or not the driver experiences a problem as a result of a sudden change in ambience. (This variable was originally an attribute choice under the variable “Other Environmental Factors” and was the “Other Sudden Change In Ambience (specify):” attribute choice.) N Prcnt Code Label 2,282 99.9 0 Absent 2 0.1 1 Present LTCCS Codebook FactorAssessment Data Set • 163 Codebook – GeneralVehicle Data Set GeneralVehicle Data Set The GeneralVehicle data set contains general information about the vehicle. This material is provided as one record per vehicle. The GeneralVehicle data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the GeneralVehicle data set with other vehicle level data sets. Format Type Length Variable Name ML241F Numeric 8 GVEMake Definition: Identifies the vehicle make for this vehicle. N Prcnt Code Label 18 0.8 2 JEEP / KAISER-JEEP 11 0.5 6 CHRYSLER 64 2.8 7 DODGE 28 1.2 9 PLYMOUTH 2 0.1 10 EAGLE 266 11.6 12 FORD 12 0.5 13 LINCOLN 23 1.0 14 MERCURY 16 0.7 18 BUICK 18 0.8 19 CADILLAC 174 7.6 20 CHEVROLET 17 0.7 21 OLDSMOBILE 29 1.3 22 PONTIAC 73 3.2 23 GMC 10 0.4 24 SATURN 1 0.0 25 GRUMMAN 10 0.4 30 VOLKSWAGEN 3 0.1 32 AUDI 8 0.4 34 BMW 57 2.5 35 NISSAN / DATSUN 85 3.7 37 HONDA 25 1.1 38 ISUZU 16 0.7 41 MAZDA 7 0.3 42 MERCEDES BENZ 2 0.1 47 SAAB 6 0.3 48 SUBARU 96 4.2 49 TOYOTA 100 4.4 51 VOLVO 30 1.3 52 MITSUBISHI 3 0.1 53 SUZUKI 11 0.5 54 ACURA LTCCS Codebook GeneralVehicle Data Set • 164 Codebook – GeneralVehicle Data Set N Prcnt Code Label 13 0.6 55 HYUNDAI 1 0.0 56 MERKUR 5 0.2 58 INFINITI 6 0.3 59 LEXUS 1 0.0 62 LAND ROVER 6 0.3 63 KIA 4 0.2 72 HARLEY-DAVIDSON 2 0.1 73 KAWASAKI 1 0.0 79 OTHER MAKE MOTORED CYCLE 1 0.0 80 BROCKWAY 319 14.0 82 FREIGHTLINER/WHITE 177 7.7 84 INTERNATIONAL HARVESTER/NAVISTAR 154 6.7 85 KENWORTH 159 7.0 86 MACK 148 6.5 87 PETERBILT 54 2.4 98 OTHER MAKE (med/heavy truck/bus or "other") 12 0.5 99 UNKNOWN MANUFACTURER Format Type Length Variable Name BEST8 Numeric 8 GVEModel Definition: Identifies the vehicle model for this vehicle. N Prcnt Code Label 14 0.6 1 1 17 0.7 2 2 27 1.2 3 3 6 0.3 4 4 8 0.4 5 5 8 0.4 6 6 7 0.3 7 7 1 0.0 8 8 13 0.6 9 9 3 0.1 10 10 ------------------------------ 8 0.4 880 880 1,062 46.5 881 881 27 1.2 882 882 73 3.2 883 883 5 0.2 884 884 5 0.2 890 890 19 0.8 898 898 LTCCS Codebook GeneralVehicle Data Set • 165 Codebook – GeneralVehicle Data Set N Prcnt Code Label 9 0.4 899 899 7 0.3 988 988 2 0.1 998 998 Variable Name Format Type Length OT28F Numeric 8 GVEYear Definition: Establishes the model year that the vehicle was manufactured. N Prcnt Code Label 1 0.0 1957 1957 1 0.0 1967 1967 1 0.0 1971 1971 1 0.0 1972 1972 1 0.0 1973 1973 3 0.1 1974 1974 1 0.0 1975 1975 5 0.2 1976 1976 2 0.1 1977 1977 7 0.3 1978 1978 13 0.6 1979 1979 5 0.2 1980 1980 9 0.4 1981 1981 8 0.4 1982 1982 13 0.6 1983 1983 28 1.2 1984 1984 35 1.5 1985 1985 31 1.4 1986 1986 51 2.2 1987 1987 60 2.6 1988 1988 85 3.7 1989 1989 88 3.9 1990 1990 70 3.1 1991 1991 89 3.9 1992 1992 97 4.2 1993 1993 135 5.9 1994 1994 146 6.4 1995 1995 150 6.6 1996 1996 157 6.9 1997 1997 194 8.5 1998 1998 201 8.8 1999 1999 244 10.7 2000 2000 LTCCS Codebook GeneralVehicle Data Set • 166 Codebook – GeneralVehicle Data Set N Prcnt Code Label 171 7.5 2001 2001 93 4.1 2002 2002 64 2.8 2003 2003 9 0.4 2004 2004 15 0.7 9999 Unknown Format Type Length Variable Name ML281F Numeric 8 GVEBodyType Definition: Identifies the body type for this vehicle. N Prcnt Code Label 14 0.6 1 Convertible 124 5.4 2 2-door sedan, hardtop, coupe 40 1.8 3 3-door/2-door hatchback 397 17.4 4 4-door sedan, hardtop 12 0.5 5 5-door/4-door hatchback 16 0.7 6 Station Wagon 10 0.4 9 Unknown automobile type 105 4.6 14 Compact utility 18 0.8 15 Large utility 7 0.3 16 Utility station wagon 2 0.1 17 3-door coupe 1 0.0 19 Utility, unknown body type 65 2.8 20 Minivan 36 1.6 21 Large van 1 0.0 24 Van based school bus 2 0.1 28 Other van type 2 0.1 29 Unknown van type 62 2.7 30 Compact pickup 96 4.2 31 Large pickup 1 0.0 32 Pickup with slide-in camper 1 0.0 39 Unknown pickup style light conventional truck type 7 0.3 40 Cab chassis based 1 0.0 48 Unknown light truck type 1 0.0 50 School bus 6 0.3 58 Other bus type 3 0.1 60 Step van 56 2.5 61 Single unit straight truck(4500kg 12,000 kgs) 14 0.6 64 Single unit straight truck (GVWR unknown) LTCCS Codebook GeneralVehicle Data Set • 167 Codebook – GeneralVehicle Data Set N Prcnt Code Label 1 0.0 65 Medium/heavy truck based motorhome 30 1.3 67 Truck-tractor with no cargo trailer 794 34.8 68 Truck-tractor pulling one trailer 58 2.5 69 Truck-tractor pulling two or more trailers 5 0.2 78 Unknown medium/heavy truck type 1 0.0 79 Unknown truck type (light/medium/heavy) 11 0.5 80 Motorcycle 1 0.0 88 Other motored cycle (minibike, motorscooter) 1 0.0 93 Construction equipment other than trucks 1 0.0 97 Other vehicle type Format Type Length Variable Name ML31F Numeric 8 GVEVehicleClass Definition: Establishes the class of vehicle. This classification is largely based on size. N Prcnt Code Label 130 5.7 1 Subcompact/mini (wheelbase < 254 cm) 203 8.9 2 Compact (wheelbase >= 254 but < 265 cm) 185 8.1 3 Intermediate (wheelbase >= 265 but < 278 cm) 56 2.5 4 Full Size (wheelbase >= 278 but < 291 cm) 30 1.3 5 Largest (wheelbase >= 291 cm) 11 0.5 9 Unknown passenger car size 105 4.6 14 Compact utility vehicle 18 0.8 15 Large utility vehicle ( <= 4,536 kgs GVWR) 7 0.3 16 Utility station wagon ( <= 4,536 kgs GVWR) 1 0.0 19 Unknown utility type 65 2.8 20 Minivan ( <= 4,536 kgs GVWR) 36 1.6 21 Large van ( <= 4,536 kgs GVWR) 1 0.0 24 Van Based school bus ( <= 4,536 kgs GVWR) 2 0.1 28 Other van type ( <= 4,536 kgs GVWR) 2 0.1 29 Unknown van type ( <= 4,536 kgs GVWR) 62 2.7 30 Compact pickup truck ( <= 4,536 kgs GVWR) 96 4.2 31 Large pickup truck ( <= 4,536 kgs GVWR) 1 0.0 38 Other pickup truck type ( <= 4,536 kgs GVWR) 1 0.0 39 Unknown pick up truck (<=4,536 kgs GVWR) 7 0.3 45 Other light truck ( <= 4,536 kgs GVWR) 1 0.0 48 Unknown light truck type ( <= 4,536 kgs GVWR) 1 0.0 50 School bus (excludes van based)(>4,536 kgs GVWR) 6 0.3 58 Other bus (>4,536 kgs GVWR) 357 15.6 60 Truck (>4,536 kgs GVWR) 30 1.3 67 Tractor without trailer LTCCS Codebook GeneralVehicle Data Set • 168 Codebook – GeneralVehicle Data Set N Prcnt Code Label 850 37.2 68 Tractor-trailer(s) 5 0.2 78 Unknown medium/heavy truck type 1 0.0 79 Unknown light/medium/heavy truck type 12 0.5 80 Motored cycle 2 0.1 90 Other vehicle Format Type Length Variable Name OT29F Numeric 8 GVECurbWeight Definition: Establishes the weight in kilograms of the vehicle as specified by the manufacturer. N Prcnt Code Label 1 0.0 349 349 1 0.0 696 696 1 0.0 710 710 1 0.0 820 820 1 0.0 831 831 3 0.1 885 885 1 0.0 890 890 1 0.0 893 893 1 0.0 912 912 1 0.0 921 921 ------------------------------ 1 0.0 17010 17010 1 0.0 17237 17237 1 0.0 17350 17350 1 0.0 17950 17950 1 0.0 18280 18280 1 0.0 18300 18300 1 0.0 19573 19573 1 0.0 19913 19913 1 0.0 28576 28576 201 8.8 999999 Unknown Format Type Length Variable Name ML282F Numeric 8 GVEWeightSource Definition: Establishes the source for the weight of the vehicle as reported in the variable “Curb Weight.” N Prcnt Code Label 201 8.8 0 Curb weight unknown 27 1.2 1 AAMA LTCCS Codebook GeneralVehicle Data Set • 169 Codebook – GeneralVehicle Data Set N Prcnt Code Label 558 24.4 2 Automotive News 204 8.9 3 Branham Automobile Reference Book 139 6.1 4 Gasoline Truck, Import Truck, and Diesel Truck Index 55 2.4 8 Other (specify) 1,100 48.2 99 Unknown curb weight source Format Type Length Variable Name OT29F Numeric 8 GVECargoWeight Definition: Documents the weight in kilograms of any cargo that is present in the vehicle at the time of the crash. This number does not include the weight of any occupants in the vehicle. For CDS vehicles that are towing a trailer, this weight represents the weight of the trailer plus its cargo. To obtain the cargo weight (only) of cargo being transported by heavy trucks, the variable CMBDCargoWeight (Total Cargo Weight) in the TruckExterior Data Set should be used. N Prcnt Code Label 919 40.2 0 0 5 0.2 1 1 6 0.3 2 2 1 0.0 3 3 39 1.7 5 5 9 0.4 7 7 26 1.1 9 9 3 0.1 10 10 16 0.7 11 11 1 0.0 13 13 ------------------------------ 1 0.0 39009 39009 1 0.0 39010 39010 1 0.0 39508 39508 1 0.0 41822 41822 1 0.0 43872 43872 1 0.0 45360 45360 1 0.0 48988 48988 1 0.0 49743 49743 1 0.0 63504 63504 449 19.7 999999 Unknown LTCCS Codebook GeneralVehicle Data Set • 170 Codebook – GeneralVehicle Data Set Format Type Length Variable Name ML283F Numeric 8 GVECargoSource Definition: Establishes the source from which the value reported in the variable “Cargo Weight” was obtained. N Prcnt Code Label 447 19.6 0 Cargo weight unknown 798 34.9 1 Vehicle inspection 72 3.2 2 Interview 1 0.0 4 Tow Yard Operator 9 0.4 8 Other (specify) 957 41.9 99 Unknown cargo weight source Format Type Length Variable Name $10 Char 10 GVEVIN Definition: Identifies the Vehicle Identification Number (VIN) for this vehicle. N Prcnt Code Label 1 0.0 * 107294N 1 0.0 * 10T3R0HT5T 1 0.0 * 10T3R2LA4E 1 0.0 * 10T9P1B26H 1 0.0 * 133671 1 0.0 * 1582028838 1 0.0 * 168182S 1 0.0 * 19UUA566X1 1 0.0 * 1A9TAC6M6X 1 0.0 * 1B3AP6436R ------------------------------ 1 0.0 * WVWMA23B4Y 1 0.0 * WVWRB11G3K 1 0.0 * YS3CN65M6R 1 0.0 * YS3DD58B3V 1 0.0 * YV1AX8842G 1 0.0 * YV1FX8845K 1 0.0 * YV1GA8746L 1 0.0 * YV1LS5574W 1 0.0 * YV1LS5826V 1 0.0 * YV1LZ5648W Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook GeneralVehicle Data Set • 171 Codebook – GeneralVehicle Data Set Format Type Length Variable Name ML1326F Numeric 8 GVESpecialUse Definition: Establishes any uses for the vehicle outside of personal use. N Prcnt Code Label 1,003 43.9 0 No Special Use 5 0.2 1 Taxi 2 0.1 2 Vehicle used as a school bus 5 0.2 5 Police 2 0.1 6 Ambulance 4 0.2 9 Unknown 1,263 55.3 88 Not a light motor vehicle Format Type Length Variable Name ML177F Numeric 8 GVEInspection Definition: Documents the type of inspection completed for this vehicle. N Prcnt Code Label 125 5.5 0 No Inspection 2 0.1 1 Vehicle fully repaired -no damage evident 626 27.4 2 Partial inspection (specify) 1,519 66.5 3 Complete Inspection 12 0.5 8 Non qualifying vehicle Variable Name Format Type Length $OT32F Char 10 GVEInspectionDate Definition: Documents the date that the vehicle was inspected by the researcher. N Prcnt Code Label 44 1.9 * 2001-01-01 34 1.5 * 2001-02-01 56 2.5 * 2001-03-01 59 2.6 * 2001-04-01 59 2.6 * 2001-05-01 68 3.0 * 2001-06-01 52 2.3 * 2001-07-01 58 2.5 * 2001-08-01 41 1.8 * 2001-09-01 81 3.5 * 2001-10-01 56 2.5 * 2001-11-01 39 1.7 * 2001-12-01 67 2.9 * 2002-01-01 LTCCS Codebook GeneralVehicle Data Set • 172 Codebook – GeneralVehicle Data Set N Prcnt Code Label 67 2.9 * 2002-02-01 94 4.1 * 2002-03-01 84 3.7 * 2002-04-01 72 3.2 * 2002-05-01 67 2.9 * 2002-06-01 41 1.8 * 2002-07-01 68 3.0 * 2002-08-01 59 2.6 * 2002-09-01 63 2.8 * 2002-10-01 88 3.9 * 2002-11-01 52 2.3 * 2002-12-01 59 2.6 * 2003-01-01 55 2.4 * 2003-02-01 86 3.8 * 2003-03-01 62 2.7 * 2003-04-01 62 2.7 * 2003-05-01 69 3.0 * 2003-06-01 56 2.5 * 2003-07-01 45 2.0 * 2003-08-01 30 1.3 * 2003-09-01 59 2.6 * 2003-10-01 43 1.9 * 2003-11-01 48 2.1 * 2003-12-01 3 0.1 * 2004-01-01 1 0.0 * 2004-05-01 12 0.5 7777-77-77 Not qualifying vehicle 125 5.5 8888-88-88 Not inspected Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length ML196F Numeric 8 GVEPARSevCode Definition: Documents the highest injury severity code in the vehicle, as reported by police on the Police Accident Report (PAR). N Prcnt Code Label 886 38.8 0 O -No injury 296 13.0 1 C -Possible injury 430 18.8 2 B -Non-incapacitating injury 365 16.0 3 A -Incapacitating injury 214 9.4 4 K -Killed 11 0.5 5 U -Injury, severity unknown LTCCS Codebook GeneralVehicle Data Set • 173 Codebook – GeneralVehicle Data Set N Prcnt Code Label 3 0.1 6 Died prior to crash 79 3.5 9 Unknown Variable Name Format Type Length ML196F Numeric 8 GVERESSevCode Definition: Documents the highest injury severity code in the vehicle, as determined by injury coding and case narratives. This code is based on information obtained from medical records and/or case narratives and may differ from the police-reported injury severity code. N Prcnt Code Label 878 38.4 0 O -No injury 40 1.8 1 C -Possible injury 754 33.0 2 B -Non-incapacitating injury 320 14.0 3 A -Incapacitating injury 221 9.7 4 K -Killed 66 2.9 5 U -Injury, severity unknown 5 0.2 6 Died prior to crash Variable Name Format Type Length $OT31F Char 10 VINMake Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 162 7.1 999999999 Unknown 10 0.4 * ACUR 1 0.0 * AMER 3 0.1 * AUDI 1 0.0 * AUTO 7 0.3 * BMW 16 0.7 * BUIC 17 0.7 * CADI 152 6.7 * CHEV 12 0.5 * CHRY 1 0.0 * DATS 61 2.7 * DODG 2 0.1 * EGIL 245 10.7 * FORD 308 13.5 * FRHT 10 0.4 * GEO 55 2.4 * GMC 4 0.2 * HD LTCCS Codebook GeneralVehicle Data Set • 174 Codebook – GeneralVehicle Data Set N Prcnt Code Label 1 0.0 * HINO 78 3.4 * HOND 13 0.6 * HYUN 4 0.2 * INFI 169 7.4 * INTL 25 1.1 * ISU 17 0.7 * JEEP 2 0.1 * KAWK 5 0.2 * KIA 147 6.4 * KW 6 0.3 * LEXS 12 0.5 * LINC 1 0.0 * LNDR 146 6.4 * MACK 15 0.7 * MAZD 22 1.0 * MERC 1 0.0 * MERK 7 0.3 * MERZ 28 1.2 * MITS 51 2.2 * NISS 16 0.7 * OLDS 3 0.1 * OSHK 28 1.2 * PLYM 28 1.2 * PONT 137 6.0 * PTRB 2 0.1 * SAA 16 0.7 * STRG 10 0.4 * STRN 6 0.3 * SUBA 2 0.1 * SUZI 84 3.7 * TOYT 8 0.4 * VOLK 75 3.3 * VOLV 34 1.5 * WHGM 5 0.2 * WHIT 13 0.6 * WSTR Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook GeneralVehicle Data Set • 175 Codebook – GeneralVehicle Data Set Format Type Length Variable Name $OT31F Char 10 VINModel Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 1 0.0 * 19E 2 0.1 * 200 7 0.3 * 20S 1 0.0 * 240 1 0.0 * 250 1 0.0 * 28S 1 0.0 * 2SE 1 0.0 * 2SS 1 0.0 * 3/5 1 0.0 * 30C ------------------------------ 4 0.2 * WIN 1 0.0 * XGU 1 0.0 * XGX 2 0.1 * XLE 7 0.3 * XPD 1 0.0 * XR4 2 0.1 * Z28 1 0.0 * Z9B 2 0.1 * ZCH 2 0.1 * ZXS Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name OT28F Numeric 8 VINYear Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 8 0.4 1981 1981 8 0.4 1982 1982 11 0.5 1983 1983 26 1.1 1984 1984 34 1.5 1985 1985 31 1.4 1986 1986 46 2.0 1987 1987 58 2.5 1988 1988 LTCCS Codebook GeneralVehicle Data Set • 176 Codebook – GeneralVehicle Data Set N Prcnt Code Label 81 3.5 1989 1989 83 3.6 1990 1990 67 2.9 1991 1991 86 3.8 1992 1992 94 4.1 1993 1993 125 5.5 1994 1994 142 6.2 1995 1995 147 6.4 1996 1996 148 6.5 1997 1997 190 8.3 1998 1998 197 8.6 1999 1999 236 10.3 2000 2000 163 7.1 2001 2001 88 3.9 2002 2002 63 2.8 2003 2003 7 0.3 2004 2004 145 6.3 9999 Unknown Format Type Length Variable Name $OT66F Char 3 Series Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 5 0.2 * 150 5 0.2 * 15V 1 0.0 * 211 1 0.0 * 22S 1 0.0 * 237 3 0.1 * 250 4 0.2 * 257 1 0.0 * 25B 6 0.3 * 25V 2 0.1 * 267 ------------------------------ 21 0.9 * WGM 24 1.1 * WIA 3 0.1 * WLX 2 0.1 * WSD 1 0.0 * WWG 2 0.1 * XLL 3 0.1 * XLS LTCCS Codebook GeneralVehicle Data Set • 177 Codebook – GeneralVehicle Data Set N Prcnt Code Label 2 0.1 * XSC 2 0.1 * XTR 5 0.2 * XWX Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $OT31F Char 10 VINBodyType Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 14 0.6 * 2D 38 1.7 * 2H 2 0.1 * 2L 1 0.0 * 2P 1 0.0 * 2T 12 0.5 * 2W 2 0.1 * 3C 1 0.0 * 3P 1 0.0 * 4B 26 1.1 * 4C 370 16.2 * 4D 8 0.4 * 4H 7 0.3 * 4P 98 4.3 * 4W 166 7.3 999999999 Unknown 1 0.0 * AC 2 0.1 * BU 20 0.9 * CB 122 5.3 * CC 13 0.6 * CG 2 0.1 * CM 96 4.2 * CP 11 0.5 * CV 9 0.4 * CW 16 0.7 * DP 712 31.2 * DS 4 0.2 * EC 16 0.7 * ES 3 0.1 * FB 3 0.1 * FC 3 0.1 * GL LTCCS Codebook GeneralVehicle Data Set • 178 Codebook – GeneralVehicle Data Set N Prcnt Code Label 12 0.5 * IC 3 0.1 * MP 3 0.1 * MY 24 1.1 * PC 80 3.5 * PK 13 0.6 * PS 2 0.1 * RD 9 0.4 * RS 44 1.9 * SV 16 0.7 * SW 33 1.4 * TB 30 1.3 * TL 217 9.5 * TM 11 0.5 * UT 4 0.2 * VN 3 0.1 * YY Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $40 Char 40 Roof1 Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 2 0.1 * Manual sun/ moon roof 876 38.4 * None/not available 3 0.1 * Other/unknown 44 1.9 * Power sun/moon roof 4 0.2 * Removable panels 1 0.0 * Removable roof 1 0.0 * Retractable roof panel 1,353 59.2 * Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $40 Char 40 Roof2 Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 66 2.9 * Manual sun/ moon roof 3 0.1 * None/not available 4 0.2 * Other/unknown LTCCS Codebook GeneralVehicle Data Set • 179 Codebook – GeneralVehicle Data Set N Prcnt Code Label 278 12.2 * Power sun/moon roof 10 0.4 * Removable panels 2 0.1 * Removable roof 1,921 84.1 * Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $40 Char 40 Roof3 Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 3 0.1 * Power sun/moon roof 2 0.1 * Removable panels 2,279 99.8 * Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $OT67F Char 5 FrontWheelDrive Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 1,582 69.3 8 Not Applicable/No value returned by PCVINA 145 6.3 9 Unknown 93 4.1 N N 464 20.3 Y Y Variable Name Format Type Length $OT67F Char 5 FourWheelDrive Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 1 0.0 * * 1,582 69.3 8 Not Applicable/No value returned by PCVINA 145 6.3 9 Unknown 549 24.0 N N 7 0.3 Y Y LTCCS Codebook GeneralVehicle Data Set • 180 Codebook – GeneralVehicle Data Set Format Type Length Variable Name $50 Char 50 GVERestraintType Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 147 6.4 * Active (manual) belts 78 3.4 * Driver front air bag/passenger side active belt 6 0.3 * Driver front air bag/passenger side belt unknown 20 0.9 * Driver front air bag/passenger side passive belt 36 1.6 * Dual air bag front/active belts w/passenger side d 7 0.3 * Dual air bags front and side/active belts w/automa 43 1.9 * Dual air bags front and sides/active belts 2 0.1 * Dual air bags front, head and sides/active belts 6 0.3 * Dual air bags front, head, and side/active belts w 1 0.0 * Dual air bags front, head, and side/active belts/r 1 0.0 * Dual air bags front/side air bag, driver-side only 317 13.9 * Dual front air bags/active belts 6 0.3 * Dual front air bags/belt system unknown 1 0.0 * Dual front air bags/passive belts 67 2.9 * No restraint information available 77 3.4 * Passive (automatic) belts 1,469 64.3 * Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $OT66F Char 3 Carburetion Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 1 0.0 1 1 17 0.7 2 2 2 0.1 3 3 4 0.2 4 4 1,572 68.8 888 Not Applicable/No value returned by PCVINA 147 6.4 999 Unknown 522 22.9 F F 1 0.0 J J 1 0.0 S S 13 0.6 T T 4 0.2 Z Z LTCCS Codebook GeneralVehicle Data Set • 181 Codebook – GeneralVehicle Data Set Format Type Length Variable Name $15 Char 15 FuelType Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 1,169 51.2 * Diesel 934 40.9 * Gas 181 7.9 * Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length BEST8 Numeric 8 VINWeight Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 739 32.4 0 0 243 10.6 1 1 132 5.8 2 2 17 0.7 3 3 21 0.9 4 4 3 0.1 5 5 68 3.0 6 6 99 4.3 7 7 962 42.1 8 8 Format Type Length Variable Name $20 Char 20 VehicleType Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 9 0.4 * Motorcycle 566 24.8 * Passenger Vehicle 1,547 67.7 * Truck 162 7.1 * Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook GeneralVehicle Data Set • 182 Codebook – GeneralVehicle Data Set Format Type Length Variable Name OT25F Numeric 8 WheelConfig Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 472 20.7 42 42 152 6.7 44 44 3 0.1 62 62 895 39.2 64 64 1 0.0 66 66 4 0.2 84 84 1 0.0 86 86 756 33.1 999 Unknown Format Type Length Variable Name $20 Char 20 DayRunningLights Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 699 30.6 * Not available 49 2.1 * Optional 154 6.7 * Standard 1,382 60.5 * Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name OT28F Numeric 8 BaseWeight Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. In kilograms. N Prcnt Code Label 1 0.0 383 383 1 0.0 397 397 1 0.0 450 450 1 0.0 593 593 1 0.0 598 598 4 0.2 999 999 1 0.0 1565 1565 1 0.0 1830 1830 1 0.0 1860 1860 1 0.0 1867 1867 LTCCS Codebook GeneralVehicle Data Set • 183 Codebook – GeneralVehicle Data Set N Prcnt Code Label ------------------------------ 2 0.1 3911 3911 1 0.0 3948 3948 1 0.0 3958 3958 1 0.0 3996 3996 1 0.0 4001 4001 1 0.0 4024 4024 2 0.1 4028 4028 1 0.0 4128 4128 1 0.0 4145 4145 1,728 75.7 9999 Unknown Variable Name Format Type Length OT30F Numeric 8 GVEMotorcycleDisplacement Definition: Created by running the vehicle’s Vehicle Identification Number (VIN) through the PCVINA computer program. N Prcnt Code Label 2 0.1 600 600 1 0.0 700 700 1 0.0 900 900 1 0.0 1200 1200 2 0.1 1340 1340 1 0.0 1450 1450 1 0.0 1500 1500 2,272 99.5 88888887 Not applicable 3 0.1 99999999 Unknown Variable Name Format Type Length OT28F Numeric 8 GVETravelSpeed Definition: Documents the travel speed (kph) of the vehicle (prior to the crash) as reported by police on the Police Accident Report (PAR). N Prcnt Code Label 220 9.6 0 0 1 0.0 5 5 15 0.7 8 8 4 0.2 11 11 2 0.1 13 13 27 1.2 16 16 1 0.0 19 19 1 0.0 20 20 LTCCS Codebook GeneralVehicle Data Set • 184 Codebook – GeneralVehicle Data Set N Prcnt Code Label 1 0.0 22 22 1 0.0 23 23 ------------------------------ 2 0.1 124 124 1 0.0 126 126 5 0.2 129 129 1 0.0 137 137 1 0.0 145 145 1 0.0 153 153 1 0.0 156 156 1 0.0 161 161 1 0.0 177 177 1 0.0 241 241 1,406 61.6 9999 Unknown Variable Name Format Type Length OT28F Numeric 8 GVEPostedSpeed Definition: Establishes the posted speed limit in effect for the crash location (kph). N Prcnt Code Label 6 0.3 0 0 1 0.0 16 16 4 0.2 24 24 4 0.2 32 32 44 1.9 40 40 58 2.5 48 48 174 7.6 56 56 135 5.9 64 64 278 12.2 72 72 163 7.1 80 80 694 30.4 89 89 236 10.3 97 97 344 15.1 105 105 99 4.3 113 113 31 1.4 121 121 13 0.6 9999 Unknown LTCCS Codebook GeneralVehicle Data Set • 185 Codebook – GeneralVehicle Data Set Variable Name DriverPresent Format ML274F Type Numeric Length 8 Definition: Serves as a flag to identify driverless motor vehicles in-transport. N Prcnt Code Label 24 1.1 0 No Driver Present 2,260 98.9 1 Yes Variable Name PARAlcoholPresent Format ML191F Type Numeric Length 8 Definition: Establishes whether or not the police report indicates that the driver had consumed an alcoholic beverage. Presence is not an indication that alcohol was in any way a cause of the crash, even though it might have been. Finding opened or unopened alcoholic beverages in the vehicle does not by itself constitute presence. N Prcnt Code Label 1,963 85.9 0 No alcohol present 67 2.9 1 Yes alcohol present 106 4.6 7 Not reported 24 1.1 8 No driver present 124 5.4 9 Unknown Format Type Length Variable Name ML189F Numeric 8 PARAlcoholTest Definition: Establishes whether or not an alcohol test was administered to this driver. N Prcnt Code Label 534 23.4 0 Test Performed 2 0.1 95 Test Refused 1,520 66.5 96 None Given 121 5.3 97 BAC test performed, results unknown 24 1.1 98 No driver present 83 3.6 99 Unknown Format Type Length Variable Name OT28F Numeric 8 PARAlcoholTestResult Definition: Reports the results of any analytical alcohol test conducted on the driver. Sources of information include the police report, medical records, and other official sources. (In percent times 100.) N Prcnt Code Label 457 20.0 0 0 1 0.0 1 1 LTCCS Codebook GeneralVehicle Data Set • 186 Codebook – GeneralVehicle Data Set N Prcnt Code Label 1 0.0 3 3 1 0.0 10 10 1 0.0 15 15 1 0.0 16 16 1 0.0 40 40 1 0.0 60 60 1 0.0 68 68 1 0.0 70 70 ------------------------------ 1 0.0 282 282 1 0.0 290 290 1 0.0 292 292 2 0.1 320 320 1 0.0 321 321 1 0.0 350 350 1 0.0 362 362 1 0.0 369 369 24 1.1 8888 Not applicable 1,740 76.2 9999 Unknown Format Type Length Variable Name $OT62F Char 10 PARTestDelay Definition: Documents the time delay between the time of the crash and the administration of an alcohol test. N Prcnt Code Label 1 0.0 * 00:25 1 0.0 * 00:28 1 0.0 * 00:29 2 0.1 * 00:30 1 0.0 * 00:31 1 0.0 * 00:33 2 0.1 * 00:36 1 0.0 * 00:37 1 0.0 * 00:39 1 0.0 * 00:41 ------------------------------ 1 0.0 * 39:14 1 0.0 * 47:10 1 0.0 * 48:00 1 0.0 * 55:00 1 0.0 * 58:48 LTCCS Codebook GeneralVehicle Data Set • 187 Codebook – GeneralVehicle Data Set N Prcnt Code Label 1 0.0 * 68:12 1 0.0 * 68:30 1,447 63.4 97:97 Not Applicable 6 0.3 98:98 No BAC Test 547 23.9 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name ML1207F Numeric 8 PARTestSource Definition: Establishes the source of the data provided in the variable “Alcohol Test Results.” N Prcnt Code Label 1,518 66.5 0 No BAC test/Not applicable 205 9.0 1 Police reported 72 3.2 2 Company reported 231 10.1 3 Medical Record 134 5.9 4 Autopsy 7 0.3 5 Lay Coroner 24 1.1 6 No driver present 20 0.9 8 Other (specify) 73 3.2 9 Unknown Format Type Length Variable Name ML192F Numeric 8 PARDrugsPresent Definition: Establishes whether or not the police report indicated that the driver had ingested an “other” drug prior to the crash. An “other” drug includes all prescription, over-the-counter medications, as well as “illicit” (illegal) drugs. Police-reported presence of an “other” drug is not an indication that the drug usage was in any way the cause of the crash, even though it might have been. Finding other drugs in the vehicle does not by itself constitute presence. N Prcnt Code Label 1,671 73.2 0 No other drug(s) present 30 1.3 1 Yes other drug(s) present 453 19.8 7 Not reported 24 1.1 8 No driver present 106 4.6 9 Unknown LTCCS Codebook GeneralVehicle Data Set • 188 Codebook – GeneralVehicle Data Set Format Type Length Variable Name $OT33F Char 5 ZipCode Definition: Documents the 5-digit zip code for the driver’s primary residence. N Prcnt Code Label 1 0.0 * 01607 1 0.0 * 02842 1 0.0 * 03431 1 0.0 * 04730 1 0.0 * 05676 1 0.0 * 06040 1 0.0 * 06812 1 0.0 * 07055 1 0.0 * 07073 1 0.0 * 07109 ------------------------------ 1 0.0 * 98901 1 0.0 * 98902 2 0.1 * 98926 1 0.0 * 98951 1 0.0 * 99114 1 0.0 * 99115 1 0.0 * 99216 1 0.0 * 99357 24 1.1 99998 No driver present 27 1.2 99999 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name ML273F Numeric 8 EthnicOrigin Definition: Documents the self-identification of race/ethnic origin by the driver. N Prcnt Code Label 1,264 55.3 1 White (non-Hispanic) 278 12.2 2 Black (non-Hispanic) 252 11.0 3 White (Hispanic) 14 0.6 4 Black (Hispanic) 13 0.6 5 American Indian, Eskimo or Aleut 50 2.2 6 Asian or Pacific Islander 18 0.8 7 Other (specify) 24 1.1 8 No driver present 371 16.2 9 Unknown LTCCS Codebook GeneralVehicle Data Set • 189 Codebook – GeneralVehicle Data Set Format Type Length Variable Name OT27F Numeric 8 CMVCrashes Definition: Reports the number of crashes this driver has been involved in while driving a Commercial Motor Vehicle (CMV) in the past 5 years, as reported by the Department of Motor Vehicles (DMV). N Prcnt Code Label 716 31.3 0 0 73 3.2 1 1 15 0.7 2 2 7 0.3 3 3 584 25.6 88 No official records found 24 1.1 97 No driver present 835 36.6 98 Not a CMV driver 30 1.3 99 Unknown Format Type Length Variable Name OT27F Numeric 8 CMVViolations Definition: Reports the number of Commercial Motor Vehicle (CMV) violations received by this driver in the past 5 years, as reported by the Department of Motor Vehicles (DMV). N Prcnt Code Label 420 18.4 0 0 132 5.8 1 1 65 2.8 2 2 46 2.0 3 3 24 1.1 4 4 18 0.8 5 5 10 0.4 6 6 7 0.3 7 7 6 0.3 8 8 1 0.0 9 9 4 0.2 10 10 1 0.0 11 11 1 0.0 13 13 690 30.2 88 No official records found 24 1.1 97 No driver present 835 36.6 98 Not a CMV driver LTCCS Codebook GeneralVehicle Data Set • 190 Codebook – GeneralVehicle Data Set Format Type Length Variable Name OT27F Numeric 8 NonCMVCrashes Definition: Reports the number of crashes this driver has been involved in while driving a non-commercial motor vehicle in the past 5 years, as reported by the Department of Motor Vehicles (DMV). N Prcnt Code Label 700 30.6 0 0 78 3.4 1 1 26 1.1 2 2 4 0.2 3 3 2 0.1 4 4 1 0.0 5 5 584 25.6 88 No official records found 24 1.1 97 No driver present 835 36.6 98 Not a CMV driver 30 1.3 99 Unknown Format Type Length Variable Name OT27F Numeric 8 NonCMVViolations Definition: Reports the number of violations received by this driver while driving a non-commercial motor vehicle in the past 5 years, as reported by the Department of Motor Vehicles (DMV). N Prcnt Code Label 229 10.0 0 0 227 9.9 1 1 113 4.9 2 2 57 2.5 3 3 41 1.8 4 4 22 1.0 5 5 18 0.8 6 6 6 0.3 7 7 7 0.3 8 8 3 0.1 9 9 3 0.1 10 10 3 0.1 11 11 1 0.0 12 12 2 0.1 13 13 1 0.0 14 14 1 0.0 16 16 1 0.0 22 22 690 30.2 88 No official records found LTCCS Codebook GeneralVehicle Data Set • 191 Codebook – GeneralVehicle Data Set N Prcnt Code Label 24 1.1 97 No driver present 835 36.6 98 Not a CMV driver Variable Name Format Type Length TotalCrashes OT27F Numeric 8 Definition: Reports the total number of crashes this driver has been involved in while driving any type of vehicle in the past 5 years, as reported by the Department of Motor Vehicles (DMV). N Prcnt Code Label 617 27.0 0 0 135 5.9 1 1 38 1.7 2 2 14 0.6 3 3 3 0.1 4 4 2 0.1 5 5 584 25.6 88 No official records found 24 1.1 97 No driver present 841 36.8 98 Not a CMV driver 26 1.1 99 Unknown Format Type Length Variable Name OT27F Numeric 8 GVETotalViolations Definition: Reports the total number of violations received by this driver (both CMV and non-CMV) in the past 5 years, as reported by the Department of Motor Vehicles (DMV). N Prcnt Code Label 495 21.7 0 0 262 11.5 1 1 175 7.7 2 2 102 4.5 3 3 78 3.4 4 4 50 2.2 5 5 31 1.4 6 6 37 1.6 7 7 19 0.8 8 8 15 0.7 9 9 8 0.4 10 10 4 0.2 11 11 3 0.1 12 12 5 0.2 13 13 6 0.3 14 14 LTCCS Codebook GeneralVehicle Data Set • 192 Codebook – GeneralVehicle Data Set N Prcnt Code Label 1 0.0 16 16 1 0.0 18 18 2 0.1 21 21 2 0.1 22 22 1 0.0 23 23 7 0.3 88 No official records found 24 1.1 97 No driver present 937 41.0 98 Not a CMV driver 19 0.8 99 Unknown Format Type Length Variable Name OT27F Numeric 8 PrevViolations Definition: Reports the total number of violations received by this driver (both CMV and non-CMV) in the years previous to the last 5 years, as reported by the Department of Motor Vehicles (DMV). N Prcnt Code Label 368 16.1 0 0 118 5.2 1 1 71 3.1 2 2 47 2.1 3 3 35 1.5 4 4 25 1.1 5 5 10 0.4 6 6 12 0.5 7 7 5 0.2 8 8 13 0.6 9 9 4 0.2 10 10 4 0.2 11 11 4 0.2 12 12 5 0.2 13 13 3 0.1 14 14 1 0.0 15 15 2 0.1 16 16 2 0.1 17 17 2 0.1 20 20 2 0.1 21 21 1 0.0 22 22 1 0.0 26 26 690 30.2 88 No official records found 24 1.1 97 No driver present 835 36.6 98 Not a CMV driver LTCCS Codebook GeneralVehicle Data Set • 193 Codebook – GeneralVehicle Data Set Format Type Length Variable Name OT27F Numeric 8 UnkTypeCrashes Definition: Reports the number of crashes this driver has been involved in while driving an unknown type vehicle in the past 5 years, as reported by the Department of Motor Vehicles (DMV). N Prcnt Code Label 15 0.7 0 0 1,406 61.6 88 No official records found 24 1.1 97 No driver present 835 36.6 98 Not a CMV driver 4 0.2 99 Unknown Variable Name Format Type Length OT27F Numeric 8 MCMIScrashes Definition: Reports the number of crashes this driver has been involved in while driving a commercial motor vehicle (CMV), as reported to the Motor Carrier Management Information System (MCMIS). N Prcnt Code Label 261 11.4 0 0 292 12.8 1 1 48 2.1 2 2 5 0.2 3 3 582 25.5 88 No official records found 24 1.1 97 No driver present 1,072 46.9 98 Not a CMV driver Variable Name Format Type Length OT27F Numeric 8 MCMIScmvViolations Definition: Represents the total number of types of inspection violations cited to this driver (not including local violations), as reported by the Motor Carrier Management Information System (MCMIS). N Prcnt Code Label 15 0.7 0 0 66 2.9 1 1 44 1.9 2 2 52 2.3 3 3 55 2.4 4 4 46 2.0 5 5 38 1.7 6 6 36 1.6 7 7 LTCCS Codebook GeneralVehicle Data Set • 194 Codebook – GeneralVehicle Data Set N Prcnt Code Label 38 1.7 8 8 23 1.0 9 9 18 0.8 10 10 17 0.7 11 11 13 0.6 12 12 11 0.5 13 13 8 0.4 14 14 8 0.4 15 15 3 0.1 16 16 5 0.2 17 17 4 0.2 18 18 1 0.0 19 19 2 0.1 20 20 5 0.2 21 21 2 0.1 22 22 1 0.0 23 23 1 0.0 25 25 2 0.1 26 26 1 0.0 30 30 582 25.5 88 No official records found 24 1.1 97 No driver present 1,163 50.9 98 Not a CMV driver Format Type Length Variable Name OT27F Numeric 8 MCMIScmvNonViolations Definition: Represents the total number of types of “local” inspection violations cited to this driver, as reported by the Motor Carrier Management Information System (MCMIS). N Prcnt Code Label 203 8.9 0 0 198 8.7 1 1 88 3.9 2 2 22 1.0 3 3 3 0.1 4 4 1 0.0 5 5 582 25.5 88 No official records found 24 1.1 97 No driver present 1,163 50.9 98 Not a CMV driver LTCCS Codebook GeneralVehicle Data Set • 195 Codebook – HazMat Data Set HazMat Data Set The HazMat data set contains information on hazardous material cargo for trucks carrying such material at the time of the crash. There is a record for each hazardous material. The HazMat data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID, VehicleNumber and Material uniquely identify each record in this data set. CaseID and VehicleNumber should be used to merge the HazMat data set with vehicle level data sets. Format Type Length Variable Name ML644F Numeric 8 Material Definition: Establishes the type of hazardous material that the vehicle was transporting at the time of the crash, as reported by the Truck Inspector. The attributes are FMCSA-generated designations. N Prcnt Code Label 7 12.3 7 2.1 Flammable Gas 4 7.0 8 2.2 Nonflammable Gas 1 1.8 10 2.1 LPG 21 36.8 17 3 Flammable 2 3.5 20 6.1 (Liquids) 6 10.5 21 3 Combustible Liquid 1 1.8 22 4.1 Flammable Solid 1 1.8 24 4.3 Dangerous wn/Wet 1 1.8 25 5.1 Oxidizer 1 1.8 28 6.1 Zone A 7 12.3 33 8 Corrosive Material 1 1.8 34 8 (PIH) Zone A 2 3.5 36 9 Miscellaneous HM 1 1.8 37 9 (Elev Temp Materl) 1 1.8 41 9 (Hazardous Waste) Variable Name Format Type Length ML645F Numeric 8 Reportable Definition: Establishes whether or not the hazardous material that was being transported was a reportable quantity, as reported by the Truck Inspector. This is an FMCSA-generated variable. N Prcnt Code Label 44 77.2 1 Yes 11 19.3 2 No 2 3.5 99 Unknown LTCCS Codebook HazMat Data Set • 196 Codebook – HazMat Data Set Format Type Length Variable Name ML646F Numeric 8 Waiver Definition: Establishes whether or not the carrier had a waiver in place for the hazardous material that was being transported at the time of the crash, as reported by the Truck Inspector. This is an FMCSA-generated variable. N Prcnt Code Label 1 1.8 1 Yes 50 87.7 2 No 6 10.5 99 Unknown LTCCS Codebook HazMat Data Set • 197 Codebook – HazMatinsp Data Set HazMatinsp Data Set The HazMatInsp data set contains information about hazardous material inspections for trucks carrying such material at the time of the crash. There is a record for each hazardous material inspection. The HazMatInsp data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID, VehicleNumber and HMIInspection uniquely identify each record in this data set. CaseID and VehicleNumber should be used to merge the HazMatInsp data set with vehicle level data sets. Format Type LengthVariable Name $3 Char 3 InspectionExists Definition: Establishes whether or not the truck was inspected by a certified North American Commercial Vehicle Inspector, and that an official truck inspection document exists. N Prcnt Code Label 206 5.0 N/A N/A 2,052 50.0 NO NO 1,849 45.0 YES YES Variable Name Format Type Length ML641F Numeric 8 HMIInspection Definition: A listing of the inspection items required by FMCSA, to be completed by the Truck Inspector, when the truck is transporting hazardous materials. This is an FMCSA-generated variable. N Prcnt Code Label 172 4.2 1 Ship paper/manifest (HA) 169 4.1 2 HM license (HB) 167 4.1 3 HW registration (HC) 170 4.1 4 Placards (HD) 168 4.1 5 Packaging (HE) 170 4.1 6 Markings (HF) 168 4.1 7 Labels (HG) 169 4.1 8 Loading/securement (HH) 168 4.1 9 Cargo/portable tanks (HI) 170 4.1 10 Safety equipment (HJ) 206 5.0 11 Not applicable 158 3.8 12 (Inspection not required) 2,052 50.0 99 Unknown LTCCS Codebook HazMatinsp Data Set • 198 Codebook – HazMatinsp Data Set Variable Name Format Type Length HMIViolation ML642F Numeric 8 Definition: Indicates whether or not the items listed in the variable “Hazardous Material Inspection” are in violation of FMCSA standards. This is an FMCSA-generated variable. N Prcnt Code Label 111 2.7 1 Yes 1,483 36.1 2 No 2,513 61.2 9 Unknown Variable Name Format Type Length ML642F Numeric 8 HMIOutOfService Definition: Establishes whether or not a particular violation is classified as “out-of-service.” This variable is related to the “Violation” variable, which is related to the “Hazardous Material Inspection” variable. This is an FMCSA-generated variable. N Prcnt Code Label 39 0.9 1 Yes 1,381 33.6 2 No 2,687 65.4 9 Unknown Format Type LengthVariable Name ML640F Numeric 8 HMIDisposition Definition: Documents the disposition of each violation (how it was handled) by the Truck Inspector. This variable is related to the “Violation” variable, which is related to the “Hazardous Material Inspection” variable. This is an FMCSA-generated variable. N Prcnt Code Label 87 2.1 2 Towed/Escorted 3 0.1 3 Other (Specify) 1,644 40.0 8 Not Applicable 2,373 57.8 9 Unknown LTCCS Codebook HazMatinsp Data Set • 199 Codebook – Injuries Data Set Injuries Data Set The Injuries data set contains all the injury information for occupants of vehicles involved in the crash. Each occupant injury is assigned a sequential injury number. This material is provided as one record per injury. The Injuries data set contains the variables CaseID, PSU, PSUStrat, RATWeight, VehicleNumber, OccupantNumber and InjuryNumber. OccupantNumber is assigned to each occupant in a vehicle. InjuryNumber is assigned to each occupant’s injuries. CaseID, VehicleNumber, OccupantNumber and InjuryNumber uniquely identify each record in this data set. CaseID, VehicleNumber and OccupantNumber should be used to merge the Injuries data set with the Occupant data sets. Variable Name Format Type Length BEST8 Numeric 8 OccupantNumber Definition: Number assigned to each occupant in a vehicle. N Prcnt Code Label 7,110 79.6 1 1 1,284 14.4 2 2 305 3.4 3 3 145 1.6 4 4 54 0.6 5 5 23 0.3 6 6 8 0.1 7 7 3 0.0 8 8 1 0.0 9 9 2 0.0 10 10 2 0.0 11 11 Format Type Length Variable Name BEST8 Numeric 8 InjuryNumber Definition: Number assigned to each occupant’s injuries. N Prcnt Code Label 1,544 17.3 1 1 1,237 13.8 2 2 964 10.8 3 3 751 8.4 4 4 580 6.5 5 5 479 5.4 6 6 391 4.4 7 7 334 3.7 8 8 294 3.3 9 9 252 2.8 10 10 ------------------------------ LTCCS Codebook Injuries Data Set • 200 Codebook – Injuries Data Set N Prcnt Code Label 8 0.1 40 40 8 0.1 41 41 7 0.1 42 42 4 0.0 43 43 4 0.0 44 44 4 0.0 45 45 3 0.0 46 46 2 0.0 47 47 1 0.0 48 48 1 0.0 49 49 Format Type Length Variable Name $100 Char 100 OINDescription Definition: Provides a description of each injury. N Prcnt Code Label 1 0.0 * Abdomen Laceration NFS 104 1.2 * Abdomen Skin abrasion 1 0.0 * Abdomen Skin avulsion blood loss > 20% by volume 126 1.4 * Abdomen Skin contusion 2 0.0 * Abdomen Skin laceration major 3 0.0 * Abdomen Skin laceration minor 8 0.1 * Acromioclavicular joint dislocation 1 0.0 * Acromion fracture 11 0.1 * Adrenal gland contusion NFS 2 0.0 * Adrenal gland contusion minor ------------------------------ 17 0.2 * Vault skull fracture complex 1 0.0 * Vault skull fracture massively depressed 3 0.0 * Vena Cava laceration major 3 0.0 * Vena Cava laceration NFS 1 0.0 * Vena cava, inferior laceration NFS 1 0.0 * Vulva contusion (OIS Grade I) 7 0.1 * Wrist (carpus) joint dislocation 1 0.0 * Wrist (carpus) joint crush 9 0.1 * Wrist (carpus) joint sprain 11 0.1 * Zygoma/malar fracture Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook Injuries Data Set • 201 Codebook – Injuries Data Set Variable Name Format Type Length BEST8 Numeric 8 AISCode Definition: A listing of the Abbreviated Injury Scale (AIS) codes. The AIS is a numerical method for ranking and comparing injuries by severity. N Prcnt Code Label 95 1.1 1102021 1102021 216 2.4 1104021 1104021 16 0.2 1106001 1106001 188 2.1 1106021 1106021 4 0.0 1106042 1106042 1 0.0 1108001 1108001 2 0.0 1108021 1108021 14 0.2 1130006 1130006 8 0.1 1150999 1150999 2 0.0 1159997 1159997 ------------------------------ 6 0.1 9106001 9106001 1 0.0 9192002 9192002 10 0.1 9192023 9192023 2 0.0 9192044 9192044 1 0.0 9920001 9920001 1 0.0 9920021 9920021 1 0.0 9920163 9920163 1 0.0 9920285 9920285 11 0.1 9920305 9920305 16 0.2 9920326 9920326 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name ML77F Numeric 8 Aspect Definition: Documents the location on the body where the injury occurred. N Prcnt Code Label 469 5.2 0 Whole Region 2,284 25.6 1 Right 2,665 29.8 2 Left 738 8.3 3 Bilateral 410 4.6 4 Central 244 2.7 5 Anterior/Front/Ventral 544 6.1 6 Posterior/Back/Dorsal 566 6.3 7 Superior/Upper LTCCS Codebook Injuries Data Set • 202 Codebook – Injuries Data Set N Prcnt Code Label 681 7.6 8 Inferior/Lower 336 3.8 9 Unknown/Multiple Regions Variable Name Format Type Length InjurySourceCat OT35F Numeric 8 Definition: Documents the general area of the vehicle in which the source of injury is located. N Prcnt Code Label 2,007 22.5 1 Front 700 7.8 2 Left Side 278 3.1 3 Right Side 1,086 12.2 4 Interior 178 2.0 5 Air Bag 373 4.2 6 Roof 250 2.8 7 Floor 16 0.2 8 Rear 70 0.8 10 Exterior of Occupant's Vehicle 324 3.6 11 Exterior of Other Motor Vehicle 468 5.2 12 Other Vehicle or Object in the Environment 538 6.0 13 Noncontact Injury 1,044 11.7 14 Injured, unknown source 1,605 18.0 99 Unknown Variable Name Format Type Length ML73F Numeric 8 InjurySource Definition: Documents the object that caused a particular injury. N Prcnt Code Label 158 1.8 1 Windshield 9 0.1 3 Sunvisor 315 3.5 4 Steering wheel rim 12 0.1 5 Steering wheel hub/spoke 429 4.8 6 Steering wheel (combination of codes 004 and 005) 21 0.2 7 Steering column, transmission selector lever, other attachment 21 0.2 8 Cellular telepone or CB radio 493 5.5 10 Left instrument panel and below 69 0.8 11 Center instrument panel and below 166 1.9 12 Right instrument panel and below 11 0.1 13 Glove compartment door 213 2.4 14 Knee bolster 65 0.7 15 Win. incl. 1/+:fr header,A(A1/A2)-pillar,instr. panel,mirror,or LTCCS Codebook Injuries Data Set • 203 Codebook – Injuries Data Set N Prcnt Code Label 10 0.1 16 Win. incl. 1/+:fr header,A(A1/A2)-pillar,instr. panel,or 13 0.1 17 Windshield reinforced by exterior object(specify) 2 0.0 19 Other front object(specify) 377 4.2 51 Left side interior surface, excluding hardware or armrests 95 1.1 52 Left side hardware or armrest 50 0.6 53 Left A(A1/A2)-pillar 106 1.2 54 Left B-pillar 27 0.3 56 Left side window glass 32 0.4 57 Left side window frame 11 0.1 59 Lt side win. glass incl. 1/+:frame,win. 2 0.0 60 Other left side object (specify) 149 1.7 101 Right side interior surface, excluding hardware or armrests 9 0.1 102 Right side hardware or armrest 5 0.1 103 Right A (A1/A2)-pillar 84 0.9 104 Right B-pillar 1 0.0 105 Other right pillar (specify) 16 0.2 106 Right side window glass 7 0.1 107 Right side window frame 3 0.0 108 RIght side window sill 3 0.0 109 Rt side win. glass incl. 1/+:frame,win. 1 0.0 110 Other right side object (specify) 330 3.7 151 Seat, back support 581 6.5 152 Belt restraint webbing/buckle 8 0.1 153 Belt restraint B-pillar or door frame attachment point 35 0.4 155 Head restraint system 50 0.6 160 Other occupants(specify) 7 0.1 161 Interior loose objects (specify) 15 0.2 162 Child safety seat (specify) 23 0.3 163 Other interior object (specify) 18 0.2 164 Center console first row 17 0.2 167 Fold down armrest first row 42 0.5 170 Air bag-driver side 5 0.1 171 Air bag-driver side and eyewear 5 0.1 180 Air bag-passenger side 2 0.0 195 Other air bag compartment cover (specify) 107 1.2 201 Front header 10 0.1 202 Rear header 79 0.9 203 Roof left side rail 23 0.3 204 Roof right side rail 140 1.6 205 Roof or convertible top 13 0.1 206 Roof maplight/console 1 0.0 208 Roll-bar 135 1.5 251 Floor (including toe pan) LTCCS Codebook Injuries Data Set • 204 Codebook – Injuries Data Set N Prcnt Code Label 56 0.6 252 Floor or console mounted transmission lever, including console 2 0.0 253 Parking brake handle 57 0.6 254 Foot controls including parking brake 9 0.1 301 Backlight (rear window) 7 0.1 303 Other rear object(specify) 105 1.2 320 Air bag 11 0.1 321 Air bag and eyewear 1 0.0 322 Air bag and jewelry 7 0.1 325 Air bag compartment cover 20 0.2 451 Hood 2 0.0 452 Outside hardware(e.g., outside mirror, antenna) 40 0.4 453 Other exterior surface or tires (specify) 19 0.2 454 Unknown exterior objects 30 0.3 501 Front bumper 38 0.4 502 Hood edge 53 0.6 503 Other front of vehicle (specify) 3 0.0 506 Windshield, roof rail, A-pillar 46 0.5 507 Side surface 60 0.7 510 Rear surface 25 0.3 511 Undercarriage 5 0.1 512 Tires and wheels 11 0.1 513 Other exterior of other motor vehicle (specify) 42 0.5 514 Unknown exterior of other motor vehicle 339 3.8 551 Ground 2 0.0 570 Same occupant contact (specify) [ex-knee] 129 1.4 598 Other vehicle or object (specify) 48 0.5 601 Fire in vehicle 152 1.7 602 Flying glass 90 1.0 603 Other noncontact injury source (specify) 2 0.0 604 Air bag exhaust gases 246 2.8 697 Injured, unknown source 2,649 29.6 999 Unknown injury source LTCCS Codebook Injuries Data Set • 205 Codebook – Injuries Data Set Variable Name IntrusionRowFormat ML53F Type Numeric Length 8 Definition: Documents the seat row of the vehicle where the intrusion occurred. N Prcnt Code Label 598 6.7 1 Front Seat 34 0.4 2 Second Seat 12 0.1 3 Third Seat 8,293 92.8 99 Unknown Variable Name IntrusionLocation Format ML54F Type Numeric Length 8 Definition: Describes the location within a particular seat row of the vehicle into which the intrusion occurred. N Prcnt Code Label 462 5.2 1 Left 20 0.2 2 Middle 162 1.8 3 Right 8,293 92.8 99 Unknown Variable Name Format Type Length ML60F Numeric 8 CrushDirection Definition: Documents the direction of the intrusion of a particular component into the passenger compartment. N Prcnt Code Label 56 0.6 1 Vertical 309 3.5 2 Longitudinal 279 3.1 3 Lateral 8,293 92.8 9 Unknown Variable Name Format Type Length ML455F Numeric 8 CrushMagnitude Definition: Documents a component’s magnitude of intrusion into the passenger compartment. N Prcnt Code Label 6 0.1 0 <= 2 cms 34 0.4 1 >= 3 to < 8 cms 139 1.6 2 >= 8 to < 15 cms 160 1.8 3 >= 15 to < 30 cms LTCCS Codebook Injuries Data Set • 206 Codebook – Injuries Data Set N Prcnt Code Label 117 1.3 4 >= 30 to < 46 cms 76 0.9 5 >= 46 to < 61 cms 85 1.0 6 >= 61 cms 8,320 93.1 9 Unknown Variable Name Format Type Length OT34F Numeric 8 Component Definition: Documents the vehicle component that intruded into the passenger compartment and caused a particular injury. N Prcnt Code Label 52 0.6 1 Steering Assembly 114 1.3 2 Instrument panel left 6 0.1 3 Instrument panel center 57 0.6 4 Instrument panel right 28 0.3 5 Toe pan 10 0.1 6 A (A1/A2)-pillar 58 0.6 7 B-pillar 127 1.4 11 Door panel (side) 19 0.2 12 Side panel -rear of the B-pillar 21 0.2 13 Roof (or convertible top) 1 0.0 14 Roof side rail 16 0.2 15 Windshield 14 0.2 16 Windshield header 4 0.0 18 Floor pan (includes sill) 2 0.0 19 Backlight header 34 0.4 20 Front seat back 1 0.0 25 Seat cushion 4 0.0 27 Other interior component (specify): 76 0.9 32 Other exterior object in the environment (specify): 8,293 92.8 99 Unknown Format Type Length Variable Name ML76F Numeric 8 InformationSource Definition: Identifies the source of information used to complete AIS coding for each injury. N Prcnt Code Label 2,941 32.9 1 Autopsy 1,955 21.9 2 Post-ER Medical Record 2,718 30.4 8 Emergency Room Records 50 0.6 9 Private Physician LTCCS Codebook Injuries Data Set • 207 Codebook – Injuries Data Set N Prcnt Code Label 22 0.2 10 Lay Coroner 23 0.3 11 EMS Record 1,130 12.6 12 Interviewee 95 1.1 13 Police Report 3 0.0 99 Unknown LTCCS Codebook Injuries Data Set • 208 Codebook – JackknifeAssessments Data Set JackknifeAssessments Data Set The JackknifeAssessments data set contains jackknife information on all vehicles. This material is provided as one record per vehicle. The JackknifeAssessments data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the JackknifeAssessments data set with other vehicle level data sets. Format Type Length Variable Name ML1613F Numeric 8 AJKType Definition: Establishes the type of precrash jackknife event that is experienced by the subject vehicle. In general, the type of jackknife event is determined by the unit of the articulated combination that begins to rotate first. For example, if the tractor/cab unit is the first unit to begin rotating, the event is generally considered a tractor jackknife. If, on the other hand, the trailer unit is the first unit to begin rotating, the event is generally considered to be trailer swing. N Prcnt Code Label 855 37.4 0 No pre-crash jackknife 19 0.8 1 Tractor jackknife 42 1.8 2 Trailer swing 1,366 59.8 7 Not applicable 2 0.1 9 Unknown Variable Name Format Type Length ML1611F Numeric 8 AJKSource Definition: Establishes the source of the jackknife impetus. N Prcnt Code Label 851 37.3 0 No pre-crash jackknife 15 0.7 1 Steering input 12 0.5 2 Braking input 18 0.8 3 Steering and braking input 6 0.3 4 Environmental condition (specify) 1 0.0 5 Vehicle condition (specify) 1,370 60.0 7 Not applicable 9 0.4 8 Combination of sources (specify) 2 0.1 9 Unknown LTCCS Codebook JackknifeAssessments Data Set • 209 Codebook – JackknifeAssessments Data Set Format Type Length Variable Name ML1612F Numeric 8 AJKLocation Definition: Establishes the location of the vehicle at the start of the jackknife sequence. N Prcnt Code Label 851 37.3 0 No pre-crash event 54 2.4 1 On roadway 4 0.2 2 On shoulder 2 0.1 3 On roadside 1 0.0 4 On median 1,370 60.0 7 Not applicable 2 0.1 9 Unknown Format Type Length Variable Name ML1610F Numeric 8 AJKDirection Definition: Establishes the direction of rotation of the first unit within the articulated vehicle configuration to begin jackknifing. N Prcnt Code Label 851 37.3 0 No pre-crash jackknife 33 1.4 1 Clockwise 28 1.2 2 Counterclockwise 1,364 59.7 7 Not applicable 8 0.4 9 Unknown Format Type Length Variable Name BEST8 Numeric 8 WhileCount Definition: Documents the number of circumstances in which the jackknife occurred that were coded to this vehicle. N Prcnt Code Label 2,224 97.4 0 0 9 0.4 1 1 24 1.1 2 2 26 1.1 3 3 1 0.0 4 4 LTCCS Codebook JackknifeAssessments Data Set • 210 Codebook – JackknifeAssessments Data Set Format Type Length Variable Name AP1U Numeric 8 AJKConstant Definition: Establishes whether or not the driver is attempting to maintain a constant velocity at the time the vehicle begins to jackknife. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,266 99.2 0 Absent 18 0.8 1 Present Variable Name Format Type Length AP1U Numeric 8 AJKCurve Definition: Establishes whether or not the driver is traversing a curve at the time the vehicle begins to jackknife. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,264 99.1 0 Absent 20 0.9 1 Present Format Type Length Variable Name AP1U Numeric 8 AJKTurn Definition: Establishes whether or not the driver is attempting to turn at the time the vehicle begins to jackknife. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,282 99.9 0 Absent 2 0.1 1 Present Variable Name Format Type Length AP1U Numeric 8 AJKLightBraking Definition: Establishes whether or not the driver is decelerating using light braking effort at the time the vehicle begins to jackknife. While the term “light braking” is a subjective evaluation, it generally implies that the level of braking effort is less than the level typically associated with a normal traffic stop. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,278 99.7 0 Absent 6 0.3 1 Present LTCCS Codebook JackknifeAssessments Data Set • 211 Codebook – JackknifeAssessments Data Set Format Type LengthVariable Name AP1U Numeric 8 Definition: Establishes whether or not the driver is accelerating at the time the vehicle begins to jackknife. (This variable was originally an attribute choice under the variable “Circumstances In AJKAccelerating Which Event Occurred.”) N Prcnt Code Label 2,283 100.0 0 Absent 1 0.0 1 Present Variable Name Format Type Length AP1U Numeric 8 AJKAvoidance Definition: Establishes whether or not the driver initiates a precrash avoidance maneuver at or prior to the time the vehicle begins to jackknife. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,255 98.7 0 Absent 29 1.3 1 Present Format Type Length Variable Name AP1U Numeric 8 AJKOther Definition: Establishes whether or not the circumstance associated with the jackknife is not described by the other jackknife event variables. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred” and was the “Other (specify):” attribute.) N Prcnt Code Label 2,276 99.6 0 Absent 8 0.4 1 Present Format Type LengthVariable Name AP1U Numeric 8 AJKDecelerating Definition: Establishes whether or not the driver is decelerating and decelerates solely by reducing throttle input at the time the vehicle begins to jackknife. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,283 100.0 0 Absent 1 0.0 1 Present LTCCS Codebook JackknifeAssessments Data Set • 212 Codebook – JackknifeAssessments Data Set Format Type LengthVariable Name AP1U Numeric 8 AJKModerateBraking Definition: Establishes whether or not the driver is decelerating using a moderate level of braking effort at the time the vehicle begins to jackknife. A moderate level of braking effort generally implies that the level of braking effort is similar to the level typically associated with a normal traffic stop. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,276 99.6 0 Absent 8 0.4 1 Present Format Type LengthVariable Name AP1U Numeric 8 AJKHeavyBraking Definition: Establishes whether or not the driver is decelerating using a heavy level of braking effort (e.g. panic stop) at the time the vehicle begins to jackknife. The vehicle will typically experience wheel “lock-up” in this circumstance; however, wheel lock is not a requirement for using this designation. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,263 99.1 0 Absent 21 0.9 1 Present Format Type LengthVariable Name AP1U Numeric 8 AJKStraight Definition: Establishes whether or not the driver is traversing a straight roadway segment at the time the vehicle begins to jackknife. (This variable was originally an attribute choice under the variable “Circumstances In Which Event Occurred.”) N Prcnt Code Label 2,259 98.9 0 Absent 25 1.1 1 Present LTCCS Codebook JackknifeAssessments Data Set • 213 Codebook – MCMISdriverData Data Set MCMISdriverData Data Set The MCMISdriverData data set contains the number of prior crashes, vehicle inspections and inspection violations associated with this driver as reported by the Motor Carrier Management Information System. One record is stored for each vehicle/driver where this information is available. The MCMISdriverData data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the MCMISdriverData data set with vehicle level data sets. Format Type Length Variable Name OT41F Numeric 8 Crashes Definition: Represents the total number of crashes for this driver, as reported by the Motor Carrier Management Information System (MCMIS). N Prcnt Code Label 300 29.5 0 0 363 35.7 1 1 57 5.6 2 2 6 0.6 3 3 290 28.5 99 Unknown Format Type Length Variable Name OT41F Numeric 8 Inspections Definition: Represents the total number of inspections performed on a vehicle driven by this driver, as reported by the Motor Carrier Management Information System (MCMIS). N Prcnt Code Label 33 3.2 0 0 168 16.5 1 1 99 9.7 2 2 92 9.1 3 3 76 7.5 4 4 64 6.3 5 5 37 3.6 6 6 38 3.7 7 7 23 2.3 8 8 19 1.9 9 9 16 1.6 10 10 12 1.2 11 11 6 0.6 12 12 10 1.0 13 13 6 0.6 14 14 6 0.6 15 15 1 0.1 16 16 LTCCS Codebook MCMISdriverData Data Set • 214 Codebook – MCMISdriverData Data Set N Prcnt Code Label 6 0.6 17 17 2 0.2 18 18 2 0.2 20 20 1 0.1 21 21 1 0.1 22 22 1 0.1 24 24 1 0.1 29 29 4 0.4 30 30 2 0.2 50 50 290 28.5 99 Unknown Variable Name Format Type Length InspDriverOOS OT41F Numeric 8 Definition: Represents the total number of “driver” out-of-service violations for this driver, as reported by the Motor Carrier Management Information System (MCMIS). N Prcnt Code Label 553 54.4 0 0 126 12.4 1 1 32 3.1 2 2 7 0.7 3 3 4 0.4 4 4 2 0.2 5 5 1 0.1 8 8 1 0.1 9 9 290 28.5 99 Unknown Variable Name Format Type Length OT41F Numeric 8 InspVehOOS Definition: Represents the total number of “vehicle” out-of-service violations for this driver, as reported by the Motor Carrier Management Information System (MCMIS). N Prcnt Code Label 322 31.7 0 0 242 23.8 1 1 102 10.0 2 2 34 3.3 3 3 13 1.3 4 4 3 0.3 5 5 5 0.5 6 6 4 0.4 7 7 LTCCS Codebook MCMISdriverData Data Set • 215 Codebook – MCMISdriverData Data Set N 1 290 Prcnt 0.1 28.5 Code 8 99 Label 8 Unknown Variable Name LocalViols Format OT41F Type Numeric Length 8 Definition: Represents the total number of types of “local” inspection violations cited to this driver, as reported by the Motor Carrier Management Information System (MCMIS). N Prcnt Code Label 252 24.8 0 0 223 21.9 1 1 107 10.5 2 2 28 2.8 3 3 4 0.4 4 4 1 0.1 5 5 401 39.5 99 Unknown Variable Name Format Type Length OT41F Numeric 8 InspViols Definition: Represents the total number of types of inspection violations cited to this driver (not including local violations), as reported by the Motor Carrier Management Information System (MCMIS). N Prcnt Code Label 20 2.0 0 0 81 8.0 53 5.2 63 6.2 67 6.6 51 5.0 45 4.4 41 4.0 45 4.4 29 2.9 21 2.1 20 2.0 16 1.6 12 1.2 10 1.0 8 0.8 5 0.5 6 0.6 LTCCS Codebook MCMISdriverData Data Set • 216 Codebook – MCMISdriverData Data Set N Prcnt Code Label 6 0.6 18 18 1 0.1 19 19 3 0.3 20 20 5 0.5 21 21 2 0.2 22 22 1 0.1 23 23 1 0.1 25 25 2 0.2 26 26 1 0.1 30 30 401 39.5 99 Unknown LTCCS Codebook MCMISdriverData Data Set • 217 Codebook – MCMISviolation Data Set MCMISviolation Data Set The MCMISviolation data set contains information on the specific inspection violations issued to a driver for previous inspections as reported by the Motor Carrier Management Information System. One record of this information exists for each violation. The MCMISviolation data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID, VehicleNumber and Code uniquely identify each record in this data set. CaseID and VehicleNumber should be used to merge the MCMISviolation data set with the MCMISdriverData data set and vehicle level data sets. Format Type Length Variable Name OT41F Numeric 8 NumViols Definition: Represents the number of violation codes cited to this driver, as reported by the Motor Carrier Management Information System (MCMIS). N Prcnt Code Label 3,199 74.2 1 1 745 17.3 2 2 187 4.3 3 3 85 2.0 4 4 48 1.1 5 5 16 0.4 6 6 11 0.3 7 7 5 0.1 8 8 5 0.1 9 9 2 0.0 10 10 2 0.0 11 11 1 0.0 13 13 1 0.0 14 14 2 0.0 99 Unknown Variable Name Format Type Length OT41F Numeric 8 NumOOSViols Definition: Represents the number of out-of-service codes cited to this driver, as reported by the Motor Carrier Management Information System (MCMIS). N Prcnt Code Label 3,289 76.3 0 0 865 20.1 1 1 117 2.7 2 2 21 0.5 3 3 3 0.1 4 4 2 0.0 5 5 12 0.3 99 Unknown LTCCS Codebook MCMISviolation Data Set • 218 Codebook – MCMISviolation Data Set Format Type Length Variable Name $12 Char 12 Code Definition: Represents the violation codes cited to this driver, as reported by the Motor Carrier Management Information System (MCMIS). This coding structure was established by the Federal Motor Carrier Safety Administration. N Prcnt Code Label 6 0.1 * 107.620B 1 0.0 * 13906 1 0.0 * 171.2A 1 0.0 * 171.2B 1 0.0 * 172.201D 1 0.0 * 172.202A1 1 0.0 * 172.202A3 1 0.0 * 172.202A4 1 0.0 * 172.203A 1 0.0 * 172.304A4 ------------------------------ 193 4.5 * 396.3A1BA 14 0.3 * 396.3A1BC 1 0.0 * 396.3A1BD 21 0.5 * 396.3A1BL 22 0.5 * 396.3A1T 25 0.6 * 396.5 39 0.9 * 396.5B 2 0.0 * 396.7 1 0.0 * 397.3 2 0.0 * 399.207 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $80 Char 80 ViolDesc Definition: Provides a description of each type of violation received by this driver. N Prcnt Code Label 64 1.5 * 10 hour rule violation 15 0.3 * 15 hour rule violation 3 0.1 * 15,20,70/80 hours of service violations (AK) 16 0.4 * 60/70 hour rule violation 1 0.0 * Adj axle locking pin missing/disengaged 5 0.1 * Air suspension pressure loss 52 1.2 * Axle positioning parts defective/missing 1 0.0 * Bolts securing cab broken/loose/missing LTCCS Codebook MCMISviolation Data Set • 219 Codebook – MCMISviolation Data Set N Prcnt Code Label 33 0.8 * Brake connections with leaks/constrictions 9 0.2 * Brake hose/tube connection ------------------------------ 2 0.0 * Unsafe operations forbidden 4 0.1 * Use of vision reducing matter on windows 15 0.3 * Using or equiping a CMV with radar detector 2 0.0 * Vehicle access requirements violations 5 0.1 * Vehicle not placarded as required 1 0.0 * Violating airbrake restriction 33 0.8 * Wheel fasteners loose and/or missing 22 0.5 * Wheel/rim cracked or broken 11 0.3 * Windshield wipers inoperative/defective 1 0.0 * Wrong or no id number Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook MCMISviolation Data Set • 220 Codebook – NonMotorists Data Set NonMotorists Data Set The NonMotorists data set contains information on nonmotorists who were involved in the crash. One record is stored for each nonmotorist. The NonMotorists data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and NonMotoristNumber. NonMotoristNumber is assigned to each non-motorist (i.e., pedestrian, pedal cyclist, etc.) involved in the crash. CaseID and NonMotoristNumber uniquely identify each record in this data set and should be used to merge the NonMotorists data set with the crash data set. Format Type Length Variable Name BEST8 Numeric 8 ANMAge Definition: Establishes the nonmotorist’s age at the time of the crash. Age is recorded with respect to the nonmotorist’s last birthday. N Prcnt Code Label 2 3.8 1 1 1 1.9 2 2 1 1.9 3 3 2 3.8 5 5 1 1.9 6 6 1 1.9 14 14 1 1.9 16 16 1 1.9 18 18 1 1.9 19 19 1 1.9 20 20 2 3.8 21 21 2 3.8 23 23 1 1.9 24 24 2 3.8 25 25 1 1.9 26 26 1 1.9 28 28 3 5.7 31 31 1 1.9 32 32 3 5.7 34 34 1 1.9 40 40 1 1.9 41 41 1 1.9 43 43 2 3.8 44 44 1 1.9 45 45 1 1.9 46 46 1 1.9 47 47 1 1.9 48 48 1 1.9 49 49 2 3.8 50 50 2 3.8 52 52 LTCCS Codebook NonMotorists Data Set • 221 Codebook – NonMotorists Data Set N Prcnt Code Label 2 3.8 56 56 1 1.9 59 59 1 1.9 61 61 2 3.8 62 62 1 1.9 67 67 1 1.9 68 68 1 1.9 69 69 1 1.9 70 70 1 1.9 73 73 Format Type Length Variable Name OT28F Numeric 8 ANMHeight Definition: Establishes the height of the nonmotorist, recorded in centimeters. N Prcnt Code Label 1 1.9 122 122 1 1.9 137 137 1 1.9 152 152 3 5.7 157 157 1 1.9 163 163 6 11.3 165 165 1 1.9 166 166 6 11.3 168 168 3 5.7 170 170 1 1.9 173 173 5 9.4 175 175 2 3.8 178 178 1 1.9 180 180 5 9.4 183 183 2 3.8 185 185 1 1.9 191 191 1 1.9 203 203 12 22.6 9999 Unknown LTCCS Codebook NonMotorists Data Set • 222 Codebook – NonMotorists Data Set Format Type Length Variable Name OT28F Numeric 8 ANMWeight Definition: Establishes the weight of the nonmotorist, recorded in kilograms. N Prcnt Code Label 1 1.9 22 22 1 1.9 34 34 1 1.9 41 41 1 1.9 54 54 1 1.9 57 57 2 3.8 59 59 2 3.8 61 61 1 1.9 62 62 2 3.8 64 64 2 3.8 66 66 2 3.8 68 68 1 1.9 71 71 1 1.9 72 72 1 1.9 74 74 2 3.8 75 75 2 3.8 77 77 1 1.9 79 79 1 1.9 82 82 1 1.9 83 83 2 3.8 84 84 1 1.9 85 85 2 3.8 86 86 1 1.9 88 88 1 1.9 91 91 1 1.9 93 93 1 1.9 95 95 1 1.9 103 103 1 1.9 104 104 1 1.9 106 106 1 1.9 109 109 1 1.9 114 114 1 1.9 116 116 1 1.9 118 118 11 20.8 9999 Unknown LTCCS Codebook NonMotorists Data Set • 223 Codebook – NonMotorists Data Set Variable Name ANMGender Format ML1052F Type Numeric Length 8 Definition: Reports the gender of the nonmotorist. N Prcnt Code Label 38 71.7 1 Male 15 28.3 2 Female - not reported pregnant Variable Name ANMType Format ML1055F Type Numeric Length 8 Definition: Establishes the specific type of nonmotorist involved in the crash. N Prcnt Code Label 44 83.0 0 Pedestrian 7 13.2 1 Pedal cyclist 2 3.8 3 Other (specify) Variable Name ANMPosition Format ML1050F Type Numeric Length 8 Definition: Describes the nonmotorist’s vertical orientation just prior to the nonmotorist’s first avoidance action. If there was no avoidance action, this variable represents the nonmotorist’s vertical orientation just prior to first impact. Individuals who are standing in a stationary position, walking, or running are all classified as standing. N Prcnt Code Label 28 52.8 1 Standing 2 3.8 2 Crouching 1 1.9 3 Kneeling 1 1.9 4 Bending at waist 1 1.9 6 Sitting 3 5.7 11 Sitting upright, pedaling/coasting 5 9.4 88 Other (specify) 12 22.6 99 Unknown Variable Name Format Type Length ML1048F Numeric 8 Motion Definition: Describes the motion of the nonmotorist just prior to the nonmotorist’s first avoidance action. If there was no avoidance action, this respresents the nonmotorist’s motion just prior to the first impact. N Prcnt Code Label 16 30.2 0 Not Moving LTCCS Codebook NonMotorists Data Set • 224 Codebook – NonMotorists Data Set N Prcnt Code Label 8 15.1 1 Walking slowly 1 1.9 2 Walking rapidly 6 11.3 3 Running or jogging 2 3.8 10 Pedaling at a rapid rate 1 1.9 28 Starting from a stopped position 1 1.9 30 Jumping 2 3.8 31 Falling/stumbling/rising 1 1.9 88 Other (specify) 15 28.3 99 Unknown Format Type Length Variable Name ML1038F Numeric 8 Action Definition: Describes the direction of the nonmotorist’s motion with respect to the vehicle, prior to the first avoidance action. If there was no avoidance action, this variable represents the nonmotorist’s motion with respect to the vehicle, just prior to first impact. N Prcnt Code Label 10 18.9 0 Stopped 16 30.2 1 Crossing road, straight 4 7.5 2 Crossing road, diagonally 2 3.8 4 Moving in road with traffic (straight) 1 1.9 5 Moving in road with traffic (weaving) 1 1.9 6 Moving in road against traffic (straight) 2 3.8 8 Off road, approaching road 1 1.9 10 Off road, moving parallel 9 17.0 98 Other (specify) 7 13.2 99 Unknown Variable Name Format Type Length ML1042F Numeric 8 Orientation Definition: Describes the nonmotorist’s body orientation with respect to the striking vehicle prior to avoidance actions. “Facing vehicle” indicates the nonmotorist’s body (chest) is facing the path of travel of the striking vehicle (which may be tracking or yawing). N Prcnt Code Label 12 22.6 1 Facing vehicle 6 11.3 2 Facing away 14 26.4 3 Left side to vehicle 5 9.4 4 Right side to vehicle 1 1.9 8 Other (specify) 15 28.3 99 Unknown LTCCS Codebook NonMotorists Data Set • 225 Codebook – NonMotorists Data Set Format Type LengthVariable Name ML1053F Numeric 8 Definition: Establishes nonmotorist sight impairments. An individual is considered sight impaired if the corrected vision level exceeds 20/70 on a standard measurement scale. SightImpaired N Prcnt Code Label 28 52.8 0 Not sight impaired 6 11.3 1 Sight impaired (specify) 19 35.8 9 Unknown Variable Name Format Type Length ML1054F Numeric 8 SightRestricted Definition: Establishes nonmotorist sight restrictions with respect to the nonmotorist’s pre-crash view of the striking vehicle. Specifically, did the nonmotorist have an unobstructed view regardless of whether or not the nonmotorist actually checked for approaching traffic? N Prcnt Code Label 41 77.4 0 No sight restrictions 1 1.9 7 Headlight glare 2 3.8 9 Other Obstruction (specify) 9 17.0 99 Unknown Variable Name Format Type Length ML1045F Numeric 8 HearingImpaired Definition: Establishes nonmotorist hearing impairments. Total deafness is considered a hearing impairment. N Prcnt Code Label 26 49.1 0 No hearing impairment 3 5.7 1 Hearing impairment (specify) 24 45.3 9 Unknown Format Type Length Variable Name ML1046F Numeric 8 HearingRestricted Definition: Establishes nonmotorist hearing restrictions. This information is important with respect to the nonmotorist hearing the approaching vehicle and/or warnings (horn) attempted by the vehicle driver. N Prcnt Code Label 32 60.4 0 No hearing restrictions 1 1.9 1 Use of radio/cassette/CD 3 5.7 8 Other (specify) 17 32.1 9 Unknown LTCCS Codebook NonMotorists Data Set • 226 Codebook – NonMotorists Data Set Variable Name Format Type Length ML1043F Numeric 8 Distraction Definition: Documents nonmotorist pre-crash distraction as a result of engaging in a variety of activities. N Prcnt Code Label 11 20.8 0 Not distracted 1 1.9 1 Conversing with another pedal cyclist 3 5.7 4 Conversing with pedestrian 1 1.9 7 Talking on cell phone 1 1.9 11 Looking at other vehicles 6 11.3 88 Other (specify) 30 56.6 99 Unknown Variable Name Format Type Length ML1041F Numeric 8 ANMDecision Definition: Documents decision errors made by the nonmotorist during the pre-crash phase. N Prcnt Code Label 18 34.0 0 No decision error involved 2 3.8 1 Assumed striking vehicle would stop/yield right-of-way 2 3.8 2 Assumed driver was aware of presence 1 1.9 4 Misjudged velocity/gap distance of vehicle 6 11.3 8 Other decision error (specify) 24 45.3 9 Unknown Format Type Length Variable Name ML1051F Numeric 8 RiskTaking Definition: Documents pre-crash risk-taking behavior by the nonmotorist. This is a subjective evaluation based on the preponderance of evidence. Examples of risk-taking behavior would include crossing the street in a mid-block area without the benefit of a defined pedestrian crosswalk and associated TCD, crossing against a “Don’t Walk” pedestrian signal warning, and walking in the traffic lane. N Prcnt Code Label 23 43.4 0 Did not exhibit risk taking behavior 23 43.4 1 Exhibited risk taking behavior (specify) 7 13.2 9 Unknown LTCCS Codebook NonMotorists Data Set • 227 Codebook – NonMotorists Data Set Format Type Length Variable Name ML1040F Numeric 8 ANMAvoidance Definition: Documents the nonmotorist’s first pre-crash avoidance action. To be considered an avoidance action, the nonmotorist activity must be a conscious or instinctive action and not a kinematic response to the impact. N Prcnt Code Label 21 39.6 0 No avoidance action 1 1.9 1 Stopped (froze) 1 1.9 8 Jumped 1 1.9 10 Turned toward vehicle 1 1.9 88 Other (specify) 28 52.8 99 Unknown Variable Name Format Type Length ML1044F Numeric 8 HandsUsed Definition: Describes the nonmotorist’s attempted use of his or her hands in completing the avoidance action. The primary categories for attempted hand use are vaulting and bracing. These actions may or may not be successful and may or may not be appropriate. The primary factor here is nonmotorist intent. N Prcnt Code Label 17 32.1 0 Did not use hands 1 1.9 8 Other (specify) 35 66.0 9 Unknown Format Type Length Variable Name ML196F Numeric 8 ANMPARSevCode Definition: Represents the police-reported injury severity code for the nonmotorist. N Prcnt Code Label 4 7.5 2 B -Non-incapacitating injury 14 26.4 3 A -Incapacitating injury 35 66.0 4 K - Killed LTCCS Codebook NonMotorists Data Set • 228 Codebook – NonMotorists Data Set Format Type Length Variable Name ML196F Numeric 8 ANMRESSevCode Definition: Represents the nonmotorist’s injury severity code, as determined by injury coding and case narratives. This code is based on occupant medical records and/or case narratives and may differ from the police-reported injury severity code. N Prcnt Code Label 1 1.9 0 O -No injury 8 15.1 2 B -Non-incapacitating injury 17 32.1 3 A -Incapacitating injury 26 49.1 4 K -Killed 1 1.9 5 U - Injury, severity unknown LTCCS Codebook NonMotorists Data Set • 229 Codebook – Occupants Data Set Occupants Data Set The Occupants data set contains all the information related to each of the occupants in the vehicles involved in the crash. Not all occupants in the vehicle are researched in detail, so for many occupant records these values are “Unknown.” This material is provided as one record per occupant. The Occupants data set contains the variables CaseID, PSU, PSUStrat, RATWeight, VehicleNumber and OccupantNumber. OccupantNumber is assigned to each occupant in a vehicle. CaseID, VehicleNumber and OccupantNumber uniquely identify each record in this data set. CaseID and VehicleNumber should be used to merge the Occupant data set with vehicle level data sets. Variable Name Format Type Length BEST8 Numeric 8 OccupantNumber Definition: OccupantNumber is assigned to each occupant in a vehicle. N Prcnt Code Label 2,269 75.3 1 1 493 16.4 2 2 135 4.5 3 3 65 2.2 4 4 25 0.8 5 5 11 0.4 6 6 5 0.2 7 7 3 0.1 8 8 3 0.1 9 9 3 0.1 10 10 2 0.1 11 11 Format Type Length Variable Name OT28F Numeric 8 OCCAge Definition: Documents the age of the occupant at the time of the crash with respect to the occupant’s last birthday. N Prcnt Code Label 8 0.3 0 0 9 0.3 1 1 8 0.3 2 2 11 0.4 3 3 16 0.5 4 4 9 0.3 5 5 11 0.4 6 6 11 0.4 7 7 11 0.4 8 8 7 0.2 9 9 LTCCS Codebook Occupants Data Set • 230 Codebook – Occupants Data Set N Prcnt Code Label ------------------------------- 5 0.2 82 82 4 0.1 83 83 3 0.1 85 85 1 0.0 86 86 2 0.1 87 87 1 0.0 88 88 1 0.0 89 89 2 0.1 90 90 1 0.0 92 92 42 1.4 9999 Unknown Variable Name Format Type Length OT28F Numeric 8 OCCHeight Definition: Documents the height of the occupant to the nearest centimeter. N Prcnt Code Label 1 0.0 58 58 2 0.1 61 61 2 0.1 64 64 2 0.1 66 66 1 0.0 69 69 1 0.0 71 71 4 0.1 76 76 1 0.0 79 79 1 0.0 81 81 1 0.0 84 84 ------------------------------- 147 4.9 185 185 116 3.8 188 188 50 1.7 191 191 33 1.1 193 193 14 0.5 196 196 6 0.2 198 198 2 0.1 201 201 2 0.1 203 203 1 0.0 206 206 475 15.8 9999 Unknown LTCCS Codebook Occupants Data Set • 231 Codebook – Occupants Data Set Format Type Length Variable Name OT28F Numeric 8 OCCWeight Definition: Documents the weight of the occupant to the nearest kilogram. N Prcnt Code Label 1 0.0 6 6 2 0.1 8 8 4 0.1 9 9 3 0.1 11 11 1 0.0 12 12 2 0.1 13 13 4 0.1 14 14 4 0.1 15 15 7 0.2 16 16 ------------------------------- 3 0.1 17 17 2 0.1 171 171 2 0.1 172 172 2 0.1 175 175 2 0.1 177 177 1 0.0 181 181 1 0.0 193 193 1 0.0 200 200 1 0.0 204 204 1 0.0 254 254 488 16.2 9999 Unknown Format Type Length Variable Name ML87F Numeric 8 OCCGender Definition: Identifies the gender of the occupant and includes information regarding pregnancy. N Prcnt Code Label 2,272 75.4 1 Male 685 22.7 2 Female, not reported pregnant 10 0.3 3 Female, pregnant -1st trimester (1st-3rd month) 6 0.2 4 Female, pregnant -2nd trimester (4th-6th month) 7 0.2 5 Female, pregnant -3rd trimester (7th-9th month) 1 0.0 6 Female, pregnant -term unknown 33 1.1 9 Unknown LTCCS Codebook Occupants Data Set • 232 Codebook – Occupants Data Set Variable Name Format Type Length Role ML88F Numeric 8 Definition: Describes the role of the occupant within the vehicle – driver or passenger. N Prcnt Code Label 2,258 74.9 1 Driver 742 24.6 2 Passenger 14 0.5 9 Unknown Format Type Length Variable Name ML273F Numeric 8 Race Definition: Represents the occupant’s self-identification of his/her race or ethnic origin. Self-identification represents self-classification by people according to the race with which they identify themselves. N Prcnt Code Label 1,535 50.9 1 White (non-Hispanic) 345 11.4 2 Black (non-Hispanic) 360 11.9 3 White (Hispanic) 17 0.6 4 Black (Hispanic) 14 0.5 5 American Indian, Eskimo or Aleut 84 2.8 6 Asian or Pacific Islander 28 0.9 7 Other (specify) 631 20.9 9 Unknown Format Type Length Variable Name ML184F Numeric 8 EyeWear Definition: Documents whether or not the occupant was wearing any type of eyewear, including contact lenses, at the time of the crash. N Prcnt Code Label 1,386 46.0 0 No 530 17.6 1 Eyeglasses/sunglasses 75 2.5 2 Contact lenses 5 0.2 3 Contact lenses w/ sunglasses 1,018 33.8 9 Unknown LTCCS Codebook Occupants Data Set • 233 Codebook – Occupants Data Set Format Type Length Variable Name ML186F Numeric 8 AirbagAvail Definition: Captures what was documented on the police report regarding the availability and functioning of any air bag system. N Prcnt Code Label 1,250 41.5 0 No airbag available 852 28.3 1 Police did not indicate airbag availability/function 275 9.1 2 Deployed 313 10.4 3 Not deployed 16 0.5 4 Unknown if deployed 308 10.2 9 Police indicated 'unknown' Format Type Length Variable Name ML187F Numeric 8 ParBeltUsed Definition: Captures what was documented on the police report regarding occupant use of available vehicle restraints (i.e. manual belts, child safety seat, or automatic restraints). N Prcnt Code Label 434 14.4 0 None Used 140 4.6 1 Police did not indicate belt use 20 0.7 2 Shoulder Belt 111 3.7 3 Lap Belt 1,645 54.6 4 Lap and shoulder belt 443 14.7 5 Belt used, type not specified 30 1.0 6 Child safety seat 4 0.1 8 Other type belt (specify) 187 6.2 9 Police indicated 'unknown' Format Type Length Variable Name ML218F Numeric 8 EjectionType Definition: Describes the type of occupant ejection that was involved during the crash sequence. Ejection refers to the person being completely or partially thrown from the vehicle as a result of the impact or rollover. N Prcnt Code Label 2,012 66.8 0 No Ejection 53 1.8 1 Complete Ejection 49 1.6 2 Partial Ejection 1 0.0 3 Ejection, unknown degree 899 29.8 9 Unknown LTCCS Codebook Occupants Data Set • 234 Codebook – Occupants Data Set Format Type Length Variable Name ML203F Numeric 8 EjectionArea Definition: Describes the general area of the vehicle from where the occupant ejection occurred during the crash sequence. Ejection refers to the person being completely or partially thrown from the vehicle as a result of the impact or rollover. N Prcnt Code Label 1,526 50.6 0 No Ejection 9 0.3 1 Windshield 42 1.4 2 Left Front 14 0.5 3 Right Front 3 0.1 4 Left Rear 4 0.1 5 Right Rear 6 0.2 6 Rear 6 0.2 7 Roof 6 0.2 8 Other area 1,398 46.4 9 Unknown Format Type Length Variable Name ML204F Numeric 8 Medium Definition: Describes the component of the vehicle from which the occupant was ejected during the crash sequence. Ejection refers to the person being completely or partially thrown from the vehicle as a result of the impact or rollover. N Prcnt Code Label 1,526 50.6 0 No Ejection 18 0.6 1 Door/hatch/tailgate 1 0.0 2 Non-fixed Roof Structure 11 0.4 3 Fixed Glazing 41 1.4 4 Non-fixed Glazing (specify) 10 0.3 5 Integral Structure 5 0.2 8 Other medium (specify) 1,402 46.5 9 Unknown Format Type Length Variable Name ML219F Numeric 8 MediumStatus Definition: Describes the status of the component of the vehicle from which the occupant was ejected during the crash sequence. This variable represents the status of the component immediately prior to the impact. N Prcnt Code Label 1,526 50.6 0 No Ejection 12 0.4 1 Open 60 2.0 2 Closed LTCCS Codebook Occupants Data Set • 235 Codebook – Occupants Data Set N Prcnt Code Label 11 0.4 3 Integral Structure 1,405 46.6 9 Unknown Variable Name MultiEjection Format ML536F Type Numeric Length 8 Definition: Indicates whether or not there were multiple ejections associated with a particular vehicle. N Prcnt Code Label 3,014 100.0 0 No Format Type Length Variable Name ML89F Numeric 8 Entrapment Definition: Documents whether or not the occupant was physically trapped inside the vehicle by an integral part of the vehicle (e.g. intruding component). N Prcnt Code Label 2,438 80.9 0 Not trapped/exit not inhibited 240 8.0 1 Trapped/pinned -mechanically restrained 145 4.8 2 Could not exit vehicle due to jammed doors, fire, etc (specify) 191 6.3 9 Unknown Format Type Length Variable Name ML185F Numeric 8 Mobility Definition: Documents the mobility of the occupant (how the occupant exited the vehicle) after the crash. N Prcnt Code Label 150 5.0 0 Occupant fatal before removed from vehicle 127 4.2 1 Removed from vehicle while unconscious or not oriented to time 284 9.4 2 Removed from vehicle due to perceived serious injuries 278 9.2 3 Exited vehicle with some assistance 1,596 53.0 4 Exited vehicle under own power 58 1.9 5 Occupant fully ejected 10 0.3 8 Removed from vehicle for other reasons (specify) 511 17.0 9 Unknown LTCCS Codebook Occupants Data Set • 236 Codebook – Occupants Data Set Variable Name Format Type Length BEST8 Numeric 8 Intrusions Definition: Documents the number of vehicle components that intruded into the passenger compartment of the vehicle as a result of the crash. N Prcnt Code Label 2,814 93.4 0 0 12 0.4 1 1 10 0.3 2 2 19 0.6 3 3 25 0.8 4 4 16 0.5 5 5 11 0.4 6 6 10 0.3 7 7 22 0.7 8 8 8 0.3 9 9 15 0.5 10 10 3 0.1 11 11 5 0.2 12 12 6 0.2 13 13 2 0.1 14 14 11 0.4 15 15 3 0.1 16 16 2 0.1 17 17 6 0.2 18 18 3 0.1 19 19 3 0.1 20 20 2 0.1 21 21 3 0.1 22 22 1 0.0 30 30 1 0.0 31 31 1 0.0 33 33 Variable Name Format Type Length OT42F Numeric 8 Row Definition: Identifies in which row in the vehicle the occupant was seated. N Prcnt Code Label 2,687 89.2 1 First row 197 6.5 2 Second row 15 0.5 3 Third row 4 0.1 4 Fourth row 1 0.0 5 Fifth row LTCCS Codebook Occupants Data Set • 237 Codebook – Occupants Data Set N Prcnt Code Label 61 2.0 8 Other 49 1.6 9 Unknown Variable Name OCCLocation Format OT43F Type Numeric Length 8 Definition: Identifies in which seat in the vehicle the occupant was located. This variable is used in conjunction with the variable “Row” to determine the exact seating location for a particular occupant. N Prcnt Code Label 2,342 77.7 1 First location 37 1.2 2 Second location 522 17.3 3 Third location 3 0.1 4 Fourth location 61 2.0 8 Other position 49 1.6 9 Unknown Variable Name Format Type Length ML188F Numeric 8 Posture Definition: Describes the occupant’s last known position in the vehicle just prior to impact. This variable is designed to capture those instances where an occupant was not in the usual upright, forward-facing seated position prior to the crash. N Prcnt Code Label 1,954 64.8 0 Normal Posture 22 0.7 2 Lying on or across seat 2 0.1 3 Kneeling, standing or sitting in front of seat 3 0.1 4 Sitting Sideways/turned to talk with anoth occ/look out rear 5 0.2 6 Lying back in a reclined seat position 7 0.2 7 Bracing with feet or hands on a surface in front of seat 2 0.1 8 In the lap of another occupant 16 0.5 10 In a Child Seat 64 2.1 88 Other posture (specify) 939 31.2 99 Unknown Format Type Length Variable Name ML90F Numeric 8 OCCRestraintType Definition: Describes the type of head restraint available for a particular seating position. N Prcnt Code Label 424 14.1 1 No head restraints 1,173 38.9 2 Integral LTCCS Codebook Occupants Data Set • 238 Codebook – Occupants Data Set N Prcnt Code Label 831 27.6 3 Adjustable 1 0.0 4 Add-on 585 19.4 9 Unknown Variable Name Format Type Length RestraintDamage ML260F Numeric 8 Definition: Describes any type of damage to the head restraint by the occupant at a particular seating position. N Prcnt Code Label 142 4.7 1 No head restraints 2,136 70.9 2 No damage 113 3.7 3 Damaged during crash 623 20.7 9 Unknown Variable Name Format Type Length ML182F Numeric 8 SeatType Definition: Describes the type of seat available for a particular occupant position. N Prcnt Code Label 778 25.8 1 Bucket 187 6.2 2 Bucket with folding back 185 6.1 3 Bench 31 1.0 4 Bench with separate back cushions 68 2.3 5 Bench with folding back(s) 98 3.3 6 Split bench with separate back cushions 53 1.8 7 Split bench with folding back(s) 8 0.3 8 Pedestal (i.e., column supported) 169 5.6 9 Box mounted seat (i.e., van type) 894 29.7 10 Other seat type (specify) 543 18.0 99 Unknown Format Type Length Variable Name ML180F Numeric 8 SeatOrientation Definition: Describes the orientation (the direction that it is facing) of a particular seat in the vehicle. N Prcnt Code Label 2,419 80.3 1 Forward facing seat 3 0.1 3 Side facing seat (inward) 1 0.0 8 Other (specify) 591 19.6 9 Unknown LTCCS Codebook Occupants Data Set • 239 Codebook – Occupants Data Set Variable Name Format Type Length TrackPosition ML183F Numeric 8 Definition: Describes the seat position (on its track) at the time of impact. N Prcnt Code Label 377 12.5 1 Non-adjustable seat track 44 1.5 2 Seat at forward most track position 124 4.1 3 Seat between forward most and middle track positions 553 18.3 4 Seat at middle track position 275 9.1 5 Seat between middle and rear most track positions 455 15.1 6 Seat at rear most track position 1,186 39.3 9 Unknown Format Type Length Variable Name ML181F Numeric 8 SeatPerformance Definition: Assesses the performance of the seat during the crash sequence. The attributes are indications of whether the seat failed or was deformed in any way. N Prcnt Code Label 1,959 65.0 1 No seat performance failure(s) 9 0.3 2 Seat adjusters failed 4 0.1 3 Seat back folding locks or 'seat back' failed (specify) 8 0.3 4 Seat track/anchors failed 90 3.0 5 Deformed by impact of occupant 162 5.4 6 Deformed by passenger compartment intrusion (specify) 17 0.6 7 Combination of above (specify) 12 0.4 8 Other (specify) 753 25.0 9 Unknown Format Type Length Variable Name ML111F Numeric 8 IntegratedRestraints Definition: Indicates whether or not the seat belts associated with a particular seat are an integral part of the seat. In other words, the belts are a part of the seat itself. N Prcnt Code Label 2,343 77.7 0 No 31 1.0 1 Yes 640 21.2 99 Unknown LTCCS Codebook Occupants Data Set • 240 Codebook – Occupants Data Set Variable Name Format Type Length PriorInclination ML179F Numeric 8 Definition: Describes the pre-crash position of the seat back for a particular seat in the vehicle and is relevant only for adjustable (reclining) seat backs. N Prcnt Code Label 586 19.4 1 Not Adjustable 736 24.4 2 Upright 871 28.9 3 Slightly Reclined 5 0.2 4 Completely Reclined 816 27.1 9 Unknown Format Type Length Variable Name ML178F Numeric 8 PostInclination Definition: Describes the post-impact position of the seat back for a particular seat in the vehicle and is relevant only for adjustable (reclining) seat backs. This variable reflects the change in the seat back incline position as a result of forces upon it during the crash sequence. N Prcnt Code Label 582 19.3 1 Not Adjustable 40 1.3 11 Moved to completely rearward position 50 1.7 12 Moved to rearward midrange position 11 0.4 13 Moved to slightly rearward position 1,472 48.8 14 Retained pre-impact position 17 0.6 15 Moved to slightly forward position 11 0.4 16 Moved to forward midrange position 7 0.2 24 Moved to upright position 2 0.1 27 Moved to completely forward position 822 27.3 99 Unknown Format Type Length Variable Name ML110F Numeric 8 ChildSeatAvailable Definition: Indicates whether or not a particular occupant was seated in a child safety seat. N Prcnt Code Label 2,843 94.3 0 No 31 1.0 1 Yes 140 4.6 99 Unknown LTCCS Codebook Occupants Data Set • 241 Codebook – Occupants Data Set Variable Name Format Type Length BEST8 Numeric 8 AirbagAvailable Definition: Identifies whether an airbag was available for a particular seating position. N Prcnt Code Label 1,966 65.2 0 0 779 25.8 1 1 269 8.9 9 9 Variable Name Format Type Length ML129F Numeric 8 ManualBeltAvailable Definition: Identifies the type of manual belt system available for a particular seating position. N Prcnt Code Label 112 3.7 0 None available 9 0.3 1 Belt removed/destroyed 1 0.0 2 Shoulder Belt 272 9.0 3 Lap Belt 2,369 78.6 4 Lap and shoulder belt 18 0.6 5 Belt available -type unknown 1 0.0 6 Shoulder (lap destroyed/removed) 4 0.1 8 Other Belt (specify) 228 7.6 9 Unknown Format Type Length Variable Name ML499F Numeric 8 ManualBeltUsed Definition: Documents actual usage of a manual belt at a particular seating position. N Prcnt Code Label 647 21.5 0 Not Used/ not available/ removed or destroyed 2 0.1 1 Inoperative (specify) 166 5.5 3 Lap Belt 1,807 60.0 4 Lap and shoulder belt 6 0.2 5 Belt used -type unknown 6 0.2 13 Lap w/child safety seat 18 0.6 14 Lap & shoulder w/child safety seat 2 0.1 15 Belt w/child seat -type unknown 360 11.9 99 Unknown if belt used LTCCS Codebook Occupants Data Set • 242 Codebook – Occupants Data Set Format Type Length Variable Name ML492F Numeric 8 ManualBeltProper Definition: Documents if the manual belt system was used as it was intended to be used (as it was designed) at a particular seating location. N Prcnt Code Label 649 21.5 0 Not equipped/not available/not used 1,256 41.7 1 Used properly 6 0.2 2 Used properly w/child seat 2 0.1 3 Improper-shoulder worn under arm 2 0.1 4 Improper-shoulder worn behind back or seat 4 0.1 6 Improper-lap belt worn on abdomen 8 0.3 8 Other improper use (specify) 1,082 35.9 9 Unknown 5 0.2 10 Used, unknown if proper Format Type Length Variable Name ML500F Numeric 8 ManualBeltFailure Definition: Indicates failure of a manual belt system during the crash sequence, based on physical evidence. N Prcnt Code Label 649 21.5 0 None used / Not available 1,864 61.8 1 No manual belt failure(s) 1 0.0 5 Other anchorage separated (specify) 500 16.6 9 Unknown Format Type Length Variable Name ML133F Numeric 8 AnchorAdjustment Definition: Documents the position of the adjustable upper anchorage point of the manual shoulder belt at the time of the crash. N Prcnt Code Label 401 13.3 0 No manual shoulder belt 1,643 54.5 1 None for manual shoulder belt 128 4.2 2 In full up position 126 4.2 3 In mid position 148 4.9 4 In full down position 110 3.6 5 Position unknown 458 15.2 9 Unknown if adjuster present LTCCS Codebook Occupants Data Set • 243 Codebook – Occupants Data Set Variable Name Format Type Length PretensionerAvailable ML1138F Numeric 8 Definition: Identifies whether or not a seat belt pretensioner is present for a manual belt. Pretensioners are designed to take up the slack in the seat belt during a crash of sufficient deceleration. When the vehicle is involved in a collision of sufficient force, a microprocessor causes current to flow through the seat belt deployment loops to the initiator. Current passing through the initiator ignites the material in the canister, producing a rapid generation of gas. The gas produced from this reaction deploys the seat belt pretensioners and shortens the seat belt pretensioner height, which removes all of the slack in the seat belts. The seat belt pretensioners will deploy immediately before the frontal initiator (air bag) modules deploy. N Prcnt Code Label 1 0.0 1 Not reinstalled 784 26.0 2 None present 8 0.3 3 Present 2,221 73.7 9 Unknown Format Type Length Variable Name ML1136F Numeric 8 PretensionerActuated Definition: Documents whether or not a manual seat belt pretensioner activated during the crash. N Prcnt Code Label 191 6.3 0 No 1 0.0 1 Yes 2,822 93.6 9 Unknown Variable Name Format Type Length OT36F Numeric 8 PretensionerTravel Definition: Documents the distance (in millimeters) the pretensioner moved from its original position during the crash. N Prcnt Code Label 3,014 100.0 999 Unknown Format Type Length Variable Name ML1200F Numeric 8 Retractor Definition: Describes the type of retractor associated with a particular seat belt. Retractors wind up the loose webbing of the unused 3-point safety belt, take up the slack, and provide slight tension on belts that are in use. N Prcnt Code Label 178 5.9 0 None Present 221 7.3 1 Emergency Locking Retractor (ELR) 2 0.1 2 Automatic Locking Retractor LTCCS Codebook Occupants Data Set • 244 Codebook – Occupants Data Set N Prcnt Code Label 19 0.6 3 Switchable Retractor in ELR Mode 3 0.1 4 Switchable Retractor in ALR Mode 2 0.1 5 Switchable Retractor-Unknown Mode 2,589 85.9 9 Unknown Retractor Type Variable Name Format Type Length ML493F Numeric 8 ManualBeltSource Definition: Documents from where the researcher obtained the preponderance of information to make the determination that the manual belt system was used. N Prcnt Code Label 120 4.0 0 Not Equipped/Not Available/Destroyed or Rendered Inoperative 2,249 74.6 1 Vehicle Inspection 21 0.7 2 Official Injury Data 263 8.7 3 Driver/occupant interview 45 1.5 8 Other (specify) 316 10.5 9 Unknown if belt used Variable Name Format Type Length ML134F Numeric 8 AutoBeltAvailable Definition: Identifies the type of automatic belt system available for a particular seating position. N Prcnt Code Label 2,712 90.0 0 Not Equipped/Not Available 67 2.2 1 Two point automatic belts 43 1.4 2 Three point automatic belts 4 0.1 3 Automatic type unknown 1 0.0 4 Automatic destroyed or rendered inoperative 187 6.2 9 Unknown Format Type Length Variable Name ML44F Numeric 8 AutoBeltUsed Definition: Documents actual usage of an automatic belt at a particular seating position. N Prcnt Code Label 2,718 90.2 0 Not Equipped/Not Available/destroyed or rendered inoperative 92 3.1 1 Automatic belt in use 10 0.3 2 Not in use (manually disconnected, motorized track inoperative) 10 0.3 3 Automatic belt use unknown 184 6.1 9 Unknown LTCCS Codebook Occupants Data Set • 245 Codebook – Occupants Data Set Variable Name Format Type Length BeltMotorized ML7F Numeric 8 Definition: Indicates whether the automatic belt system is motorized or non-motorized. N Prcnt Code Label 2,697 89.5 0 Not Equipped/Not Available 51 1.7 1 Non-motorized system 61 2.0 2 Motorized system 205 6.8 9 Unknown Format Type Length Variable Name ML135F Numeric 8 AutoBeltProper Definition: Documents if the automatic belt system was used as it was intended to be used (as it was designed) at a particular seating location. N Prcnt Code Label 2,728 90.5 0 Not Equipped/Not Available/Not Used 62 2.1 1 Used properly 1 0.0 8 Other improper use (specify) 223 7.4 9 Unknown Variable Name Format Type Length ML502F Numeric 8 AutoBeltFailure Definition: Indicates failure of an automatic belt system during the crash sequence, based on physical evidence. N Prcnt Code Label 2,728 90.5 0 Not Equipped/Not Available/Not In Use 85 2.8 1 No automatic belt failure(s) 1 0.0 4 Upper anchorage separated 1 0.0 8 Other automatic belt failure (specify) 199 6.6 9 Unknown Variable Name Format Type Length ML494F Numeric 8 AutoBeltSource Definition: Documents from where the researcher obtained the preponderance of information to make the determination that the automatic belt system was used. N Prcnt Code Label 2,702 89.6 0 Not Equipped/Not Available/Destroyed or Rendered Inoperative 100 3.3 1 Vehicle Inspection 6 0.2 3 Driver/occupant interview LTCCS Codebook Occupants Data Set • 246 Codebook – Occupants Data Set N Prcnt Code Label 4 0.1 8 Other (specify) 202 6.7 9 Unknown if belt used Variable Name Format Type Length ML196F Numeric 8 OCCInjSeverityCode Definition: Identifies the police-reported injury severity for a particular occupant. N Prcnt Code Label 1,168 38.8 0 O -No injury 434 14.4 1 C -Possible injury 602 20.0 2 B -Non-incapacitating injury 439 14.6 3 A -Incapacitating injury 248 8.2 4 K -Killed 24 0.8 5 U -Injury, severity unknown 3 0.1 6 Died prior to crash 96 3.2 9 Unknown Format Type Length Variable Name ML195F Numeric 8 Mortality Definition: Documents whether or not the occupant died as a result of the crash (either due to injuries received during the crash or due to a physical incapacitation that led to the crash). N Prcnt Code Label 2,706 89.8 0 Not Fatal 250 8.3 1 Fatal 12 0.4 2 Fatal -ruled disease (specify) 46 1.5 9 Unknown Variable Name Format Type Length ML194F Numeric 8 InitialTreatment Definition: Describes the type of medical treatment an occupant received as a result of the crash. N Prcnt Code Label 1,366 45.3 0 No treatment 41 1.4 1 Dead on Arrival (DOA) at hospital 38 1.3 2 Dead prior to Admission 452 15.0 3 Hospitalization 846 28.1 4 Transported and released 23 0.8 5 Treatment at scene -non-transported 57 1.9 6 Treatment later 92 3.1 7 Transported to a medical facility-unknown if treated LTCCS Codebook Occupants Data Set • 247 Codebook – Occupants Data Set N Prcnt Code Label 4 0.1 8 Treatment -other (specify) 95 3.2 9 Unknown Variable Name Format Type Length ML193F Numeric 8 InitialFacility Definition: Describes the category of medical facility that provided initial treatment to an occupant as a result of injuries from the crash. N Prcnt Code Label 1,428 47.4 0 Not treated at a medical facility 955 31.7 1 Trauma Center 466 15.5 2 Hospital 1 0.0 3 Medical clinic 57 1.9 5 Treatment later at medical facility 1 0.0 8 Other (specify) 106 3.5 9 Unknown Variable Name Format Type Length OT41F Numeric 8 HospitalDays Definition: Documents the number of days that the occupant was hospitalized (after being admitted) in a primary medical care facility. N Prcnt Code Label 2,385 79.1 0 0 114 3.8 1 1 56 1.9 2 2 53 1.8 3 3 23 0.8 4 4 23 0.8 5 5 16 0.5 6 6 17 0.6 7 7 13 0.4 8 8 9 0.3 9 9 12 0.4 10 10 8 0.3 11 11 12 0.4 12 12 3 0.1 13 13 4 0.1 14 14 4 0.1 15 15 2 0.1 16 16 1 0.0 17 17 LTCCS Codebook Occupants Data Set • 248 Codebook – Occupants Data Set N Prcnt Code Label 3 0.1 18 18 5 0.2 19 19 2 0.1 20 20 2 0.1 21 21 3 0.1 22 22 1 0.0 24 24 3 0.1 26 26 3 0.1 27 27 1 0.0 28 28 1 0.0 32 32 1 0.0 35 35 3 0.1 37 37 1 0.0 39 39 1 0.0 43 43 1 0.0 44 44 1 0.0 46 46 2 0.1 61 61 225 7.5 99 Unknown Variable Name Format Type Length OT41F Numeric 8 WorkDaysLost Definition: Documents the actual number of “work” days lost due to the crash by an employed person or a full-time college student. Employed is defined to mean that the occupant was scheduled to work at least four hours on each of the days lost. The days lost need not be due to injury. N Prcnt Code Label 867 28.8 0 0 101 3.4 1 1 75 2.5 2 2 31 1.0 3 3 15 0.5 4 4 41 1.4 5 5 12 0.4 6 6 8 0.3 7 7 4 0.1 8 8 4 0.1 9 9 22 0.7 10 10 3 0.1 11 11 2 0.1 12 12 2 0.1 13 13 9 0.3 14 14 LTCCS Codebook Occupants Data Set • 249 Codebook – Occupants Data Set N Prcnt Code Label 10 0.3 15 15 2 0.1 16 16 1 0.0 19 19 4 0.1 20 20 3 0.1 21 21 2 0.1 22 22 2 0.1 23 23 1 0.0 24 24 2 0.1 25 25 3 0.1 28 28 19 0.6 30 30 1 0.0 35 35 1 0.0 43 43 2 0.1 45 45 6 0.2 60 60 25 0.8 61 61 661 21.9 88 Not applicable 1,073 35.6 99 Unknown Format Type Length Variable Name $7 Char 7 DateOfDeath Definition: Identifies the actual date of death for a fatally injured occupant. N Prcnt Code Label 1 0.0 * 2001-01 6 0.2 * 2001-02 6 0.2 * 2001-03 7 0.2 * 2001-04 6 0.2 * 2001-05 8 0.3 * 2001-06 5 0.2 * 2001-07 5 0.2 * 2001-08 7 0.2 * 2001-09 9 0.3 * 2001-10 7 0.2 * 2001-11 5 0.2 * 2001-12 6 0.2 * 2002-01 14 0.5 * 2002-02 13 0.4 * 2002-03 8 0.3 * 2002-04 6 0.2 * 2002-05 LTCCS Codebook Occupants Data Set • 250 Codebook – Occupants Data Set N Prcnt Code Label 8 0.3 * 2002-06 5 0.2 * 2002-07 12 0.4 * 2002-08 4 0.1 * 2002-09 1 0.0 * 2002-10 13 0.4 * 2002-11 3 0.1 * 2002-12 6 0.2 * 2003-01 6 0.2 * 2003-02 11 0.4 * 2003-03 4 0.1 * 2003-04 10 0.3 * 2003-05 6 0.2 * 2003-06 3 0.1 * 2003-07 10 0.3 * 2003-08 6 0.2 * 2003-09 10 0.3 * 2003-10 5 0.2 * 2003-11 5 0.2 * 2003-12 1 0.0 * 2004-09 2,766 91.8 * 9999-99 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $OT26F Char 10 TimeOfDeath Definition: Identifies the actual time of death for a fatally injured occupant (military clock time). N Prcnt Code Label 1 0.0 * 00:05 1 0.0 * 00:30 1 0.0 * 00:35 1 0.0 * 00:40 1 0.0 * 01:07 2 0.1 * 01:11 2 0.1 * 01:24 1 0.0 * 01:31 1 0.0 * 01:45 1 0.0 * 01:55 ------------------------------ 1 0.0 * 22:20 1 0.0 * 22:30 1 0.0 * 22:45 1 0.0 * 22:52 LTCCS Codebook Occupants Data Set • 251 Codebook – Occupants Data Set N Prcnt Code Label 1 0.0 * 22:53 1 0.0 * 23:07 1 0.0 * 23:17 1 0.0 * 23:45 3 0.1 * 23:55 2,793 92.7 99:99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name BEST8 Numeric 8 InjuryCount Definition: Represents the total number of coded injuries (coded by the Zone Center) for a particular occupant. N Prcnt Code Label 1,470 48.8 0 0 307 10.2 273 9.1 213 7.1 171 5.7 101 3.4 88 2.9 57 1.9 40 1.3 42 1.4 31 1.0 17 0.6 20 0.7 20 0.7 25 0.8 16 0.5 12 0.4 13 0.4 3 0.1 16 0.5 6 0.2 8 0.3 5 0.2 7 0.2 4 0.1 7 0.2 1 0.0 3 0.1 LTCCS Codebook Occupants Data Set • 252 Codebook – Occupants Data Set N Prcnt Code Label 3 0.1 28 28 2 0.1 29 29 6 0.2 30 30 4 0.1 31 31 2 0.1 32 32 1 0.0 33 33 1 0.0 34 34 4 0.1 35 35 2 0.1 36 36 2 0.1 38 38 3 0.1 39 39 1 0.0 41 41 3 0.1 42 42 1 0.0 45 45 1 0.0 46 46 1 0.0 47 47 1 0.0 49 49 Format Type Length Variable Name ML108F Numeric 8 GCSScore Definition: Documents the actual value of the initial GCS score obtained at a medical facility. The Glascow Coma Scale assesses three neurological functions: eye opening, motor response, and verbal response. The GCS is taken from medical records. N Prcnt Code Label 991 32.9 0 Not Injured 275 9.1 1 Injured -not treated at medical facility 439 14.6 2 No GCS Score at medical facility 18 0.6 3 GCS = 3 3 0.1 4 GCS = 4 3 0.1 5 GCS = 5 4 0.1 6 GCS = 6 6 0.2 7 GCS = 7 2 0.1 8 GCS = 8 1 0.0 9 GCS = 9 3 0.1 11 GCS = 11 4 0.1 12 GCS = 12 9 0.3 13 GCS = 13 25 0.8 14 GCS = 14 673 22.3 15 GCS = 15 197 6.5 97 Injured, details unknown 361 12.0 99 Unknown if injured LTCCS Codebook Occupants Data Set • 253 Codebook – Occupants Data Set Variable Name Format Type Length UnitsTransfused ML466F Numeric 8 Definition: Documents the number of blood units given to an occupant for treatment of injuries resulting from the crash. N Prcnt Code Label 2,351 78.0 0 No Blood Given 3 0.1 1 1 Unit given 13 0.4 2 2 Units given 3 0.1 3 3 Units given 10 0.3 4 4 Units given 1 0.0 5 5 Units given 3 0.1 6 6 Units given 1 0.0 8 8 Units given 1 0.0 9 9 Units given 16 0.5 10 10 or more Units given 16 0.5 97 Blood given, # units unknown 596 19.8 99 Unknown if blood given Variable Name Format Type Length ML109F Numeric 8 ABGTest Definition: Documents the reported HCO3 (bicarbonate) value obtained for this occupant. This information is found on medical records. N Prcnt Code Label 991 32.9 0 Not Injured 1,344 44.6 1 Injured, ABG not measured or reported 8 0.3 2 ABG = 2 1 0.0 9 ABG = 9 1 0.0 12 ABG = 12 1 0.0 13 ABG = 13 1 0.0 14 ABG = 14 1 0.0 15 ABG = 15 3 0.1 16 ABG = 16 1 0.0 17 ABG = 17 5 0.2 18 ABG = 18 6 0.2 19 ABG = 19 7 0.2 20 ABG = 20 5 0.2 21 ABG = 21 10 0.3 22 ABG = 22 11 0.4 23 ABG = 23 7 0.2 24 ABG = 24 LTCCS Codebook Occupants Data Set • 254 Codebook – Occupants Data Set N Prcnt Code Label 7 0.2 25 ABG = 25 5 0.2 26 ABG = 26 2 0.1 27 ABG = 27 7 0.2 28 ABG = 28 2 0.1 29 ABG = 29 5 0.2 30 ABG = 30 1 0.0 32 ABG = 32 1 0.0 33 ABG = 33 14 0.5 96 ABG reported, HCO3 unknown 206 6.8 97 Injured, details unknown 361 12.0 99 Unknown if injured LTCCS Codebook Occupants Data Set • 255 Codebook – Overview Data Set Overview Data Set The Overview data set contains a summary of factors coded to each vehicle involved in the crash. Data from select assessment variables in other data sets are provided here. This facilitates analysis of factors that may have contributed to the crash. However, it is important to note that the presence of a particular factor does not necessarily indicate causation. There is one record in the data set for each vehicle. The Overview data set contains the variables CaseID, PSU, PSUStrat, RATWeight and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the Overview data set with other vehicle level data sets. Variable Name Format Type Length ML241F Numeric 8 OVEMake Definition: This vehicle identifies the vehicle make for this vehicle. N Prcnt Code Label 18 0.8 2 JEEP / KAISER-JEEP 11 0.5 6 CHRYSLER 64 2.8 7 DODGE 28 1.2 9 PLYMOUTH 2 0.1 10 EAGLE 266 11.6 12 FORD 12 0.5 13 LINCOLN 23 1.0 14 MERCURY 16 0.7 18 BUICK 18 0.8 19 CADILLAC 174 7.6 20 CHEVROLET 17 0.7 21 OLDSMOBILE 29 1.3 22 PONTIAC 73 3.2 23 GMC 10 0.4 24 SATURN 1 0.0 25 GRUMMAN 10 0.4 30 VOLKSWAGEN 3 0.1 32 AUDI 8 0.4 34 BMW 57 2.5 35 NISSAN / DATSUN 85 3.7 37 HONDA 25 1.1 38 ISUZU 16 0.7 41 MAZDA 7 0.3 42 MERCEDES BENZ 2 0.1 47 SAAB 6 0.3 48 SUBARU 96 4.2 49 TOYOTA 100 4.4 51 VOLVO LTCCS Codebook Overview Data Set • 256 Codebook – Overview Data Set N Prcnt Code Label 30 1.3 52 MITSUBISHI 3 0.1 53 SUZUKI 11 0.5 54 ACURA 13 0.6 55 HYUNDAI 1 0.0 56 MERKUR 5 0.2 58 INFINITI 6 0.3 59 LEXUS 1 0.0 62 LAND ROVER 6 0.3 63 KIA 4 0.2 72 HARLEY-DAVIDSON 2 0.1 73 KAWASAKI 1 0.0 79 OTHER MAKE MOTORED CYCLE 1 0.0 80 BROCKWAY 319 14.0 82 FREIGHTLINER/WHITE 177 7.7 84 INTERNATIONAL HARVESTER/NAVISTAR 154 6.7 85 KENWORTH 159 7.0 86 MACK 148 6.5 87 PETERBILT 54 2.4 98 OTHER MAKE (med/heavy truck/bus or "other") 12 0.5 99 UNKNOWN MANUFACTURER Format Type Length Variable Name BEST8 Numeric 8 OVEModel Definition: Identifies the vehicle model for this vehicle (with OVEMake). N Prcnt Code Label 14 0.6 1 1 17 0.7 2 2 27 1.2 3 3 6 0.3 4 4 8 0.4 5 5 8 0.4 6 6 7 0.3 7 7 1 0.0 8 8 13 0.6 9 9 3 0.1 10 10 ------------------------------ 8 0.4 880 880 1,062 46.5 881 881 27 1.2 882 882 73 3.2 883 883 LTCCS Codebook Overview Data Set • 257 Codebook – Overview Data Set N Prcnt Code Label 5 0.2 884 884 5 0.2 890 890 19 0.8 898 898 9 0.4 899 899 7 0.3 988 988 2 0.1 998 998 Format Type Length Variable Name OT28F Numeric 8 OVEYear Definition: Establishes the model year that the vehicle was manufactured. N Prcnt Code Label 1 0.0 1957 1957 1 0.0 1967 1967 1 0.0 1971 1971 1 0.0 1972 1972 1 0.0 1973 1973 3 0.1 1974 1974 1 0.0 1975 1975 5 0.2 1976 1976 2 0.1 1977 1977 7 0.3 1978 1978 13 0.6 1979 1979 5 0.2 1980 1980 9 0.4 1981 1981 8 0.4 1982 1982 13 0.6 1983 1983 28 1.2 1984 1984 35 1.5 1985 1985 31 1.4 1986 1986 51 2.2 1987 1987 60 2.6 1988 1988 85 3.7 1989 1989 88 3.9 1990 1990 70 3.1 1991 1991 89 3.9 1992 1992 97 4.2 1993 1993 135 5.9 1994 1994 146 6.4 1995 1995 150 6.6 1996 1996 157 6.9 1997 1997 LTCCS Codebook Overview Data Set • 258 Codebook – Overview Data Set N Prcnt Code Label 194 8.5 1998 1998 201 8.8 1999 1999 244 10.7 2000 2000 171 7.5 2001 2001 93 4.1 2002 2002 64 2.8 2003 2003 9 0.4 2004 2004 15 0.7 9999 Unknown Format Type Length Variable Name $OT44F Char 10 OVEConfiguration Definition: Provides a summary of the configuration of the rig. Letter codes are “strung together” (listed from left to right) to represent the order of equipment in the rig. For example, a tractor pulling two trailers connected by an A-dolly would have a configuration of “TSAS”. N Prcnt Code Label 1,043 45.7 88 Not a truck 1 0.0 ISS ISS 22 1.0 Not Insp Not Insp 309 13.5 R R 20 0.9 RF RF 24 1.1 RO RO 1 0.0 ROO ROO 29 1.3 T T 6 0.3 TO TO 773 33.8 TS TS 1 0.0 TSA TSA 22 1.0 TSAS TSAS 2 0.1 TSCS TSCS 29 1.3 TSF TSF 2 0.1 TSXS TSXS Variable Name Format Type Length ML657F Numeric 8 Movement Definition: Establishes the subject vehicle’s pre-critical event movement pattern. The pre-event movement pattern is usually described as the point that both precedes the critical precrash envelope and that precedes vehicle motions that place the involved vehicle(s) on an imminent collision path. N Prcnt Code Label 24 1.1 0 No driver present 1,141 50.0 1 Going Straight 155 6.8 2 Decelerating in traffic lane LTCCS Codebook Overview Data Set • 259 Codebook – Overview Data Set N Prcnt Code Label 33 1.4 3 Accelerating in traffic lane 14 0.6 4 Starting in traffic lane 296 13.0 5 Stopped in traffic lane 53 2.3 6 Passing or overtaking another vehicle 3 0.1 7 Disabled or parked in travel lane 15 0.7 10 Turning right 36 1.6 11 Turning left 3 0.1 12 Making a U-turn 7 0.3 13 Backing up (other than for parking position) 274 12.0 14 Negotiating a curve 86 3.8 15 Changing lanes 17 0.7 16 Merging 63 2.8 17 Successful avoidance maneuver to a previous critical event 26 1.1 98 Other (specify) 38 1.7 99 Unknown Variable Name Format Type Length ML654F Numeric 8 OVECriticalEvent Definition: Identifies the event which made the crash imminent (i.e. something occurred which made the collision inevitable). A precrash critical event is coded for each vehicle in the crash and documents the circumstances leading to this vehicle’s first impact in the crash sequence. N Prcnt Code Label 13 0.6 1 Blow out/flat tire, (specify blow out/flat,location/make) 7 0.3 3 Disabling vehicle failure (e.g, wheel fell off) Specify: 5 0.2 4 Non-disabling vehicle problem (e.g., hood flew up) Specify: 16 0.7 5 Poor road conditions(Puddle,pot hole,ice,etc.) Specify: 122 5.3 6 Traveling too fast for conditions 12 0.5 7 Jacknife Event 26 1.1 8 Other cause of control loss (specify) 13 0.6 9 Unknown cause of control loss 131 5.7 10 Over the lane line on left side of travel lane 63 2.8 11 Over the lane line on right side of travel lane 42 1.8 12 Off the edge of the road on the left side 83 3.6 13 Off the edge of the road on the right side 1 0.0 14 End departure 76 3.3 15 Turning left at intersection 22 1.0 16 Turning right at interesection 76 3.3 17 Crossing over (passing through) intersection 7 0.3 18 This vehicle decelerating 119 5.2 50 Other vehicle stopped 79 3.5 51 Travelling in same direction with low steady speed LTCCS Codebook Overview Data Set • 260 Codebook – Overview Data Set N Prcnt Code Label 82 3.6 52 Travelling in same direction while decelerating 252 11.0 53 Traveling in same direction with higher speed 30 1.3 54 Traveling in opposite direction 2 0.1 55 In crossover 2 0.1 56 Backing 1 0.0 59 Unknown travel direction of other motor vehicle in lane 91 4.0 60 From adjacent lane (same direction) -over left lane line 95 4.2 61 From adjacent lane (same direction -over right lane line 110 4.8 62 From opposite direction-over left lane line 2 0.1 63 From opposite direction -over right lane line 4 0.2 65 From crossing street, turning into same direction 68 3.0 66 From crossing street, across path 22 1.0 67 From crossing street ,turning into opposite direction 2 0.1 70 From driveway,turning into same direction 4 0.2 71 From driveway, across path 5 0.2 72 From driveway, turning into oppsite direction 1 0.0 74 From enterance to limited access highway 26 1.1 80 Pedestrian in roadway 1 0.0 81 Pedestrain approaching roadway 7 0.3 83 Pedalcyclist or other nonmotorist in roadway (specify): 1 0.0 87 Animal in roadway 16 0.7 90 Object in roadway 41 1.8 98 Other (Specify) 14 0.6 100 Cargo Shift 492 21.5 125 Not involved first harmful event Variable Name Format Type Length ML655F Numeric 8 OVEReason Definition: Establishes the critical reason for the occurrence of the critical event. The critical reason is the immediate reason for this event and is often the last failure in the causal chain (i.e. closest in time to the critical precrash event). Although the critical reason is an important part of the description of crash events, it is not the cause of the crash nor does it imply the assignment of fault. N Prcnt Code Label 1,229 53.8 0 Critical event not coded to this vehicle 59 2.6 100 Sleep, that is, actually asleep 40 1.8 101 Heart attack or other physical impairment of the ability to act 3 0.1 108 Other critical non-performance (specify) 6 0.3 109 Unknown critical non-performance 59 2.6 110 Inattention (i.e., daydreaming) 43 1.9 111 Internal distraction 28 1.2 112 External distraction 138 6.0 113 Inadequate surveillance (e.g., failed to look, looked but did not LTCCS Codebook Overview Data Set • 261 Codebook – Overview Data Set N Prcnt Code Label 3 0.1 118 Other recognition error (specify) 53 2.3 119 Unknown recognition error 69 3.0 120 Too fast for conditions to be able to respond to unexpected 2 0.1 121 Too slow for traffic stream 36 1.6 122 Misjudgment of gap or other's speed 34 1.5 123 Following too closely to respond to unexpected actions 22 1.0 124 False assumption of other road user's actions 44 1.9 125 Illegal maneuver 6 0.3 127 Inadequate evasive action, e.g. braking only, not braking and 23 1.0 128 Aggressive driving behavior 20 0.9 138 Other decision error (specify) 3 0.1 139 Unknown decision error 63 2.8 140 Too fast for curve/turn 1 0.0 141 Panic/Freezing 40 1.8 142 Overcompensation 38 1.7 143 Poor directional control e.g., failing to control vehicle with skill 2 0.1 149 Unknown performance error 98 4.3 199 Type of driver error unknown 16 0.7 200 Tires/wheels failed 8 0.4 201 Brakes failed 1 0.0 202 Steering failed 17 0.7 203 Cargo shifted 1 0.0 204 Trailer attachment failed 2 0.1 205 Suspension failed 1 0.0 208 Body, doors, hood failed 2 0.1 298 Other vehicle failure (specify) 1 0.0 299 Unknown vehicle failures 1 0.0 500 Signs/signals missing 1 0.0 504 View obstructed by other vehicles 1 0.0 505 Road design -roadway geometry (e.g., ramp curvature) 1 0.0 507 Road design -other 20 0.9 509 Slick roads (low friction road surface due to ice, loose debris, any 1 0.0 518 Other highway-related condition (specify) 1 0.0 522 Fog 2 0.1 523 Wind gust 7 0.3 530 Glare 18 0.8 540 Degraded braking capability 3 0.1 541 Transmission/engine failure 17 0.7 999 Unknown reason for critical event LTCCS Codebook Overview Data Set • 262 Codebook – Overview Data Set Format Type Length Variable Name ML656F Numeric 8 OVEAvoidance Definition: Attempted avoidance maneuvers are movements/actions initiated by the subject driver, within the crucial crash envelope, in response to a critical precrash event. Attempted avoidance maneuvers occur after the driver has realization of an impending danger. Documents the driver’s actions initiated in response to the realization of impending danger. N Prcnt Code Label 24 1.1 0 No driver present 1,219 53.4 1 No avoidance maneuver 137 6.0 2 Braking (no lockup) 219 9.6 3 Braking (lockup) 13 0.6 4 Braking (lockup unknown) 61 2.7 6 Steering left 72 3.2 7 Steering right 106 4.6 8 Braking and steering left 128 5.6 9 Braking and steering right 21 0.9 10 Accelerating 8 0.4 11 Accelerating and steering left 10 0.4 12 Accelerating and steering right 115 5.0 98 Other action (specify) 151 6.6 99 Unknown Format Type Length Variable Name ML659F Numeric 8 OVEStability Definition: The purpose of this variable is to assess the stability of the vehicle after the critical event. The stability of the vehicle prior to an avoidance action is not considered except in the following situation: A vehicle that is out of control (e.g. yawing clockwise) prior to an avoidance maneuver is coded “Other vehicle loss of control” only if an avoidance action was taken in response to an impending danger. Thus, the variable focuses upon this vehicle’s dynamics after the critical event. N Prcnt Code Label 24 1.1 0 No driver present 1,644 72.0 1 Tracking 368 16.1 2 Skidding longitudinally->rotation less than 30 degrees 59 2.6 3 Skidding laterally->clockwise rotation 72 3.2 4 Skidding laterally->counterclockwise rotation 47 2.1 8 Other vehicle loss-of-control (specify) 70 3.1 9 Pre-crash stability unknown LTCCS Codebook Overview Data Set • 263 Codebook – Overview Data Set Format Type Length Variable Name ML658F Numeric 8 OVELocation Definition: Reports the location of the subject vehicle at the point where its pre-impact stability is determined. N Prcnt Code Label 24 1.1 0 No driver present 1,431 62.7 1 Stayed in original travel lane 521 22.8 2 Stayed on roadway but left original travel lane 10 0.4 3 Stayed on roadway, not known if left original travel lane 221 9.7 4 Departed roadway 11 0.5 5 Remained off roadway 24 1.1 6 Returned to roadway 13 0.6 7 Entered roadway 29 1.3 9 Unknown Format Type Length Variable Name ML660F Numeric 8 OVERightOfWay Definition: Establishes vehicle right-of-way characteristics, from a legal perspective, for the subject vehicle. Specifically, did this vehicle have the right-of-way? N Prcnt Code Label 581 25.4 1 Yes 401 17.6 2 No 1,295 56.7 88 Not Applicable 7 0.3 99 Unknown Format Type Length Variable Name OT2F Numeric 8 OVEAccidentType Definition: Is used in categorizing the collisions of drivers involved in crashes. A collision is defined here as the first harmful event in a crash between a vehicle and some object, accompanied by property damage or human injury. The object may be another vehicle, a person, an animal, a fixed object, the road surface, or the ground. If the first collision is a rollover, the impact is with the ground or road surface. The collision may also involve plowing into soft ground, if severe deceleration results in damage or injury. A road departure without damage or injury is not defined as a collision. This variable is part of the larger variable “Crash Type.” The “Crash Type” variable is actually broken down into three components: the crash category, the crash configuration, and the accident type. This variable only deals with the configuration of the crash. N Prcnt Code Label 115 5.0 1 Right Roadside Departure 562 24.6 2 Rear-End 80 3.5 3 Head-On 118 5.2 4 Turn Across Path LTCCS Codebook Overview Data Set • 264 Codebook – Overview Data Set N Prcnt Code Label 144 6.3 5 Straight Paths 104 4.6 6 Same Trafficway Opposite Directions -Sideswipe/Angle 101 4.4 7 Left Roadside Departure 5 0.2 8 Same Trafficway Same Direction -Forward Impact 10 0.4 9 Same Trafficway Opposite Directions -Forward Impact 88 3.9 10 Turn Into Path 46 2.0 11 Single Driver -Forward Impact 268 11.7 12 Same Trafficway Same Direction -Sideswipe/Angle 643 28.2 13 Miscellaneous Format Type Length Variable Name BEST8 Numeric 8 OVECrashCode Definition: Is used in categorizing the collisions of drivers involved in crashes. A collision is defined here as the first harmful event in a crash between a vehicle and some object, accompanied by property damage or human injury. The object may be another vehicle, a person, an animal, a fixed object, the road surface, or the ground. If the first collision is a rollover, the impact is with the ground or road surface. The collision may also involve plowing into soft ground, if severe deceleration results in damage or injury. A road departure without damage or injury is not defined as a collision. This variable encompasses the “Crash Configuration” variable, which is a component of this variable. N Prcnt Code Label 18 0.8 0 0 65 2.8 1 1 43 1.9 2 2 6 0.3 3 3 1 0.0 5 5 38 1.7 6 6 54 2.4 7 7 6 0.3 8 8 1 0.0 9 9 2 0.1 10 10 2 0.1 11 11 3 0.1 12 12 32 1.4 13 13 1 0.0 14 14 8 0.4 15 15 113 4.9 20 20 106 4.6 21 21 7 0.3 22 22 1 0.0 23 23 90 3.9 24 24 85 3.7 25 25 2 0.1 26 26 LTCCS Codebook Overview Data Set • 265 Codebook – Overview Data Set N Prcnt Code Label 2 0.1 27 27 61 2.7 28 28 53 2.3 29 29 1 0.0 30 30 7 0.3 31 31 32 1.4 32 32 2 0.1 33 33 4 0.2 42 42 1 0.0 43 43 7 0.3 44 44 105 4.6 45 45 49 2.1 46 46 53 2.3 47 47 54 2.4 48 48 35 1.5 50 50 35 1.5 51 51 10 0.4 52 52 10 0.4 62 62 45 2.0 64 64 45 2.0 65 65 14 0.6 66 66 38 1.7 68 68 38 1.7 69 69 10 0.4 70 70 10 0.4 71 71 10 0.4 72 72 10 0.4 73 73 2 0.1 74 74 4 0.2 76 76 4 0.2 77 77 5 0.2 78 78 5 0.2 79 79 4 0.2 80 80 4 0.2 81 81 30 1.3 82 82 30 1.3 83 83 2 0.1 84 84 31 1.4 86 86 31 1.4 87 87 38 1.7 88 88 38 1.7 89 89 6 0.3 90 90 7 0.3 92 92 LTCCS Codebook Overview Data Set • 266 Codebook – Overview Data Set N 4 614 Prcnt 0.2 26.9 Code 93 98 Label 93 98 Variable Name OVEJackKnife Format AP1U Type Numeric Length 8 Definition: Indicates whether or not a jackknife occurred for this vehicle N Prcnt Code Label 2,223 97.3 0 Absent 61 2.7 1 Present Variable Name OVECargoShift Format AP1U Type Numeric Length 8 Definition: Indicates whether or not a cargo shift occurred for this vehicle. N Prcnt Code Label 2,241 98.1 0 Absent 43 1.9 1 Present Variable Name OVEAlcohol Format AP1U Type Numeric Length 8 Definition: Indicates whether or not there was any alcohol involvement for this vehicle/driver. N Prcnt Code Label 2,199 96.3 0 Absent 85 3.7 1 Present Format Type Length Variable Name AP1U Numeric 8 AnyDrugsVeh Definition: Indicates whether or not any drugs (either legal or illegal) were coded as present for this vehicle/driver. N Prcnt Code Label 2,198 96.2 0 Absent 86 3.8 1 Present LTCCS Codebook Overview Data Set • 267 Codebook – Overview Data Set Format Type Length Variable Name AP1U Numeric 8 DriverPhysical Definition: Indicates whether or not there were any other physical factors coded for this vehicle/driver. N Prcnt Code Label 1,520 66.5 0 Absent 764 33.5 1 Present Variable Name Format Type Length AP1U Numeric 8 DriverFatigue Definition: Indicates whether or not the driver in this vehicle was coded as being fatigued at the time of the crash. N Prcnt Code Label 2,068 90.5 0 Absent 216 9.5 1 Present Format Type Length Variable Name AP1U Numeric 8 OVERecognition Definition: Indicates whether or not any recognition-related factors were coded for this vehicle/driver. N Prcnt Code Label 1,803 78.9 0 Absent 481 21.1 1 Present Format Type Length Variable Name AP1U Numeric 8 OVEDecision Definition: Indicates whether or not any decision-related factors were coded for this vehicle/driver. N Prcnt Code Label 1,825 79.9 0 Absent 459 20.1 1 Present LTCCS Codebook Overview Data Set • 268 Codebook – Overview Data Set Format Type LengthVariable Name AP1U Numeric 8 Definition: Indicates whether or not any aggression factors were coded for this vehicle/driver. Aggression N Prcnt Code Label 2,136 93.5 0 Absent 148 6.5 1 Present Variable Name Format Type Length AP1U Numeric 8 OVESurveillance Definition: Indicates whether or not any surveillance-related factors were coded for this vehicle/driver. N Prcnt Code Label 1,807 79.1 0 Absent 477 20.9 1 Present Variable Name Format Type Length AP1U Numeric 8 EmotionExperience Definition: Indicates whether or not there were any emotional or experience-related factors coded for this vehicle/driver. N Prcnt Code Label 1,692 74.1 0 Absent 592 25.9 1 Present Format Type LengthVariable Name AP1U Numeric 8 CarrierEmployer Definition: Indicates whether or not any carrier or employer factors were coded for this vehicle/driver. N Prcnt Code Label 2,191 95.9 0 Absent 93 4.1 1 Present LTCCS Codebook Overview Data Set • 269 Codebook – Overview Data Set Format Type Length Variable Name AP1U Numeric 8 Traffic Definition: Indicates whether or not any traffic-related factors were coded for this vehicle/driver. N Prcnt Code Label 1,529 66.9 0 Absent 755 33.1 1 Present Variable Name Format Type Length AP1U Numeric 8 VehicleState Definition: Indicates whether or not any vehicle-related factors (deficiencies or malfunctions) were coded for this vehicle. N Prcnt Code Label 1,752 76.7 0 Absent 532 23.3 1 Present Variable Name Format Type Length AP1U Numeric 8 Roadway Definition: Indicates whether or not any roadway-related factors were coded for this vehicle/driver. N Prcnt Code Label 1,864 81.6 0 Absent 420 18.4 1 Present Format Type Length Variable Name AP1U Numeric 8 Weather Definition: Indicates whether or not any weather-related factors were coded for this vehicle/driver. N Prcnt Code Label 1,944 85.1 0 Absent 340 14.9 1 Present Format Type Length Variable Name AP1U Numeric 8 OVEEnvironment Definition: Indicates whether or not there were any environmental factors coded for this vehicle/driver. N Prcnt Code Label 2,269 99.3 0 Absent 15 0.7 1 Present LTCCS Codebook Overview Data Set • 270 Codebook – Overview Data Set Variable Name Format Type Length AP1U Numeric 8 OVESpeed Definition: Indicates whether or not any speed-related or gap distance-related factors were coded for this vehicle/driver. N Prcnt Code Label 1,811 79.3 0 Absent 473 20.7 1 Present Variable Name Format Type Length AP1U Numeric 8 NonMotorist Definition: Indicates whether or not a nonmotorist was involved in an impact with this vehicle. N Prcnt Code Label 2,229 97.6 0 Absent 55 2.4 1 Present LTCCS Codebook Overview Data Set • 271 Codebook – PARViolations Data Set PARViolations Data Set The PARViolations data set contains violations filed against the driver as a result of the crash and reported on the Police Accident Report. One record of this information is stored for each violation charged. The PARViolations data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID, VehicleNumber and PARViolationCode uniquely identify each record in this data set. CaseID and VehicleNumber should be used to merge the PARViolations data set with vehicle level data sets. Format Type Length Variable Name BEST8 Numeric 8 PARViolationCode Definition: Indicates violation of the Vehicle Code as charged by the investigating officer and as noted on the police report. N Prcnt Code Label 1,101 56.6 0 0 11 0.6 1 1 12 0.6 2 2 21 1.1 3 3 55 2.8 4 4 3 0.2 7 7 21 1.1 11 11 3 0.2 12 12 1 0.1 13 13 1 0.1 15 15 5 0.3 19 19 14 0.7 22 22 99 5.1 23 23 2 0.1 24 24 21 1.1 29 29 14 0.7 31 31 1 0.1 33 33 1 0.1 34 34 2 0.1 35 35 2 0.1 36 36 10 0.5 37 37 1 0.1 39 39 3 0.2 42 42 3 0.2 43 43 30 1.5 46 46 1 0.1 48 48 10 0.5 49 49 1 0.1 51 51 LTCCS Codebook PARViolations Data Set • 272 Codebook – PARViolations Data Set N Prcnt Code Label 12 0.6 52 52 1 0.1 53 53 24 1.2 58 58 1 0.1 59 59 33 1.7 61 61 6 0.3 62 62 2 0.1 63 63 10 0.5 69 69 19 1.0 71 71 18 0.9 72 72 77 4.0 73 73 15 0.8 74 74 15 0.8 75 75 19 1.0 76 76 11 0.6 79 79 27 1.4 81 81 79 4.1 82 82 16 0.8 83 83 23 1.2 86 86 65 3.3 89 89 1 0.1 92 92 1 0.1 93 93 10 0.5 98 98 11 0.6 99 99 Variable Name Format Type Length $100 Char 100 PARDescription Definition: Describes the violations charged to the driver as indicated on the police report. N Prcnt Code Label 5 0.3 * Alcohol, drug or impairment violations, generally 79 4.1 * Brake violations 2 0.1 * Certain traffic to use right lane (trucks, slow-moving, etc.) 77 4.0 * Commercial driver violations (log book, hours, permits carried) 12 0.6 * Driving on left, wrong side of road, generally 19 1.0 * Driving uninsured vehicle 1 0.1 * Driving where prohibited (sidewalk, limited access, off truck 3 0.2 * Driving while impaired 21 1.1 * Driving while intoxicated(alco/drug) or BAC above limit(any 19 1.0 * Driving while license withdrawn (including violation of work 1 0.1 * Driving while under influence of substance not intended to LTCCS Codebook PARViolations Data Set • 273 Codebook – PARViolations Data Set N Prcnt Code Label 1 0.1 * Driving wrong way on one-way road 1 0.1 * Enter intersection, when space insufficient 65 3.3 * Equipment violations, generally 2 0.1 * Exceeding special speed limit(e.g.:for trucks, buses, bridge, 15 0.8 * Failure to carry insurance card 1 0.1 * Failure to obey flashing signal (yellow or red) 2 0.1 * Failure to obey signal, generally 10 0.5 * Failure to obey stop sign 1 0.1 * Failure to obey traffic control device, generally 16 0.8 * Failure to require restraint use (by self or passengers) 3 0.2 * Failure to signal for turn or stop 14 0.7 * Failure to stop for red signal 30 1.5 * Failure to yield, generally 24 1.2 * Following too closely 3 0.2 * Hit-and-run, failure to stop after accident 1 0.1 * Illegal possession of alcohol or drugs 3 0.2 * Improper method & position of turn (too wide, wrong lane) 6 0.3 * Improper use of lane (center of 3-lane road, HOV designed lane) 1 0.1 * Improper, unsafe passing 55 2.8 * Inattentive, careless, improper driving 27 1.4 * Lamp violations 10 0.5 * Lane violations, generally 11 0.6 * Manslaughter or homicide 11 0.6 * Non-moving violations, generally 1,101 56.6 * None 18 0.9 * Other driver license violations 10 0.5 * Other moving violation (coasting, backing, opening door) 23 1.2 * Size, weight, load violations 99 5.1 * Speed greater than reasonable & prudent (not necessarily over 21 1.1 * Speed related, violations, generally 14 0.7 * Speeding (above the speed limit) 1 0.1 * Theft, unauthorized use of motor vehicle 10 0.5 * Turn, yield, signaling violations, generally 11 0.6 * Unknown VIOLATION 33 1.7 * Unsafe or prohibited lane change 21 1.1 * Unsafe reckless (not willful, wanton reckless) driving 15 0.8 * Vehicle registration violations 2 0.1 * Violate RR grade crossing device/regulations 1 0.1 * Violation of turn on red (failure to stop & yield to pedestrians 12 0.6 * Willful reckless driving, driving to endanger, negligent driving 1 0.1 * Wrong side, passing, following violations, generally Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook PARViolations Data Set • 274 Codebook – SaferAuthorityStatus Data Set SaferAuthorityStatus Data Set The SaferAuthorityStatus data set includes information on the insurance licensing authority for the driver’s carrier. This material is imported from the FMCSA Safety and Fitness Electronic Records (SAFER) database and is provided as one record per vehicle/driver for which this carrier information is available. The SaferAuthorityStatus data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the SaferAuthorityStatus data set with vehicle level data sets. Format Type Length Variable Name $20 Char 20 CommonStatus Definition: Describes the standing of the common carrier certificate (operating authority). N Prcnt Code Label 342 56.5 * ACTIVE 51 8.4 * INACTIVE 189 31.2 * NONE 23 3.8 * UNK Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $20 Char 20 ContractStatus Definition: Describes the standing of the contract carrier permit (operating authority). N Prcnt Code Label 456 75.4 * ACTIVE 38 6.3 * INACTIVE 88 14.5 * NONE 23 3.8 * UNK Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $20 Char 20 BrokerStatus Definition: Describes the standing of the broker license (operating authority). N Prcnt Code Label 13 2.1 * ACTI 119 19.7 * ACTIVE 3 0.5 * INAC 34 5.6 * INACTIVE 413 68.3 * NONE 23 3.8 * UNK Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SaferAuthorityStatus Data Set • 275 Codebook – SaferCarrier Data Set SaferCarrier Data Set The SaferCarrier data set contains information on the operations of the driver’s carrier from the FMCSA SAFER database. This material is provided as one record per vehicle/driver for which this carrier information is available. The SaferCarrier data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the SaferCarrier data set with vehicle level data sets. Format Type Length Variable Name AP1U Numeric 8 AuthorizedForHire Definition: A commercial entity whose primary business activity is the transportation of property or passengers by motor vehicle for compensation. N Prcnt Code Label 225 28.3 0 Absent 571 71.7 1 Present Variable Name Format Type Length AP1U Numeric 8 ExemptForHire Definition: A for-hire entity transporting commodities or conducting operations not subject to economic regulation by the Interstate Commerce Commission. N Prcnt Code Label 761 95.6 0 Absent 35 4.4 1 Present Format Type LengthVariable Name AP1U Numeric 8 PrivateProperty Definition: An entity whose highway transportation activities are incidental to, and in furtherance of, its primary business activity. N Prcnt Code Label 598 75.1 0 Absent 198 24.9 1 Present LTCCS Codebook SaferCarrier Data Set • 276 Codebook – SaferCarrier Data Set Format Type Length Variable Name AP1U Numeric 8 Definition: A private entity engaged in the interstate transportation of passengers which is provided in the furtherance of a commercial enterprise and is not available to the public at large. N PrivatePassengersBusiness Prcnt Code Label 796 100.0 0 Absent Variable Name Format Type Length AP1U Numeric 8 PrivatePassengersNonBusiness Definition: A private entity engaged in the interstate transportation of passengers that does not otherwise meet the definition of a private entity transporting passengers (business) (e.g. church buses). N Prcnt Code Label 796 100.0 0 Absent Format Type Length Variable Name AP1U Numeric 8 Migrant Definition: An entity who transports in interstate or foreign commerce at any one time, three or more migrant workers to or from their employment (refers to “contract carrier by motor vehicle”). N Prcnt Code Label 796 100.0 0 Absent Variable Name Format Type Length AP1U Numeric 8 USMail Definition: An entity which transports U.S. Mail. N Prcnt Code Label 780 98.0 0 Absent 16 2.0 1 Present Variable Name FederalGovernment Format AP1U Type Numeric Length 8 Definition: Transportation of property or passengers by a U.S. Federal Government Agency. N Prcnt Code Label 794 99.7 0 Absent 2 0.3 1 Present LTCCS Codebook SaferCarrier Data Set • 277 Codebook – SaferCarrier Data Set Format Type Length Variable Name AP1U Numeric 8 StateGovernment Definition: Transportation of property or passengers by a U.S. State Government Agency. N Prcnt Code Label 794 99.7 0 Absent 2 0.3 1 Present Variable Name Format Type Length AP1U Numeric 8 LocalGovernment Definition: Transportation of property or passengers by a local municipality. N Prcnt Code Label 794 99.7 0 Absent 2 0.3 1 Present Variable Name IndianTribe Format AP1U Type Numeric Length 8 Definition: Transportation of property or passengers by an Indian tribal government. N Prcnt Code Label 795 99.9 0 Absent 1 0.1 1 Present Variable Name Other Format AP1U Type Numeric Length 8 Definition: An entity which does not fall into one of the other listed classifications. N Prcnt Code Label 738 92.7 0 Absent 58 7.3 1 Present Variable Name Unknown Format AP1U Type Numeric Length 8 Definition: Entity type unknown. N Prcnt Code Label 795 99.9 0 Absent 1 0.1 1 Present LTCCS Codebook SaferCarrier Data Set • 278 Codebook – SaferCarrier Data Set Format Type Length Variable Name $27 Char 27 CargoCarried Definition: Describes the specific type of cargo hauled by this carrier. N Prcnt Code Label 20 2.5 * BEVERAGES 48 6.0 * BUILDING MATERIALS 38 4.8 * CHEMICALS 6 0.8 * COAL, COKE 29 3.6 * COMMODITIES DRY BULK 23 2.9 * CONSTRUCTION 18 2.3 * DRIVE AWAY/TOWAWAY 5 0.6 * FARM SUPPLIES 31 3.9 * FRESH PRODUCE 20 2.5 * GARBAGE, REFUSE, TRASH 92 11.6 * GENERAL FREIGHT 13 1.6 * GRAIN, FEED, HAY 10 1.3 * HOUSEHOLD GOODS 26 3.3 * INTERMODAL CONTAINERS 27 3.4 * LIQUIDS/GASES 4 0.5 * LIVESTOCK 37 4.6 * LOGS, POLES, BEAMS, LUMBER 36 4.5 * MACHINERY, LARGE OBJECTS 32 4.0 * MEAT 31 3.9 * METAL; SHEETS, COILS, ROLLS 4 0.5 * MOBILE HOMES 12 1.5 * MOTOR VEHICLES 1 0.1 * OIL FIELD EQUIPMENT 141 17.7 * OTHER 31 3.9 * PAPER PRODUCTS 2 0.3 * PASSENGERS 34 4.3 * REFRIGERATED FOOD 15 1.9 * U.S. MAIL 8 1.0 * UNKNOWN 2 0.3 * UTILITY Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SaferCarrier Data Set • 279 Codebook – SaferCarrier Data Set Format Type Length Variable Name $OT44F Char 20 SCAStatus Definition: Describes the status of the carrier in MCMIS (Motor Carrier Management Information System). N Prcnt Code Label 1 0.1 99 Unknown 767 96.4 * ACTIVE 28 3.5 * INACTIVE Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $100 Char 100 CarrierOperationDescription Definition: Describes the carrier’s type of operation – it describes where the carrier is allowed to go (intrastate vs. interstate). N Prcnt Code Label 755 94.8 * INTERSTATE 7 0.9 * INTRASTATE HAZMAT 32 4.0 * INTRASTATE NON-HAZMAT 2 0.3 * Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length OT45F Numeric 8 CountDrivers Definition: Documents the number of drivers employed by this carrier. N Prcnt Code Label 2 0.3 0 0 50 6.3 1 1 39 4.9 2 2 26 3.3 3 3 28 3.5 4 4 8 1.0 5 5 18 2.3 6 6 15 1.9 7 7 16 2.0 8 8 11 1.4 9 9 ----------------------------------- 1 0.1 12807 12807 3 0.4 12912 12912 1 0.1 13123 13123 1 0.1 13149 13149 LTCCS Codebook SaferCarrier Data Set • 280 Codebook – SaferCarrier Data Set N Prcnt Code Label 2 0.3 14424 14424 1 0.1 17510 17510 6 0.8 19900 19900 1 0.1 28342 28342 3 0.4 66150 66150 25 3.1 999999999999 Unknown Format Type Length Variable Name BEST8 Numeric 8 CountPowerUnits Definition: Documents the number of power units owned, trip-leased, and term-leased by this carrier. N Prcnt Code Label 16 2.0 0 0 59 7.4 1 1 32 4.0 2 2 27 3.4 3 3 18 2.3 4 4 13 1.6 5 5 19 2.4 6 6 12 1.5 7 7 13 1.6 8 8 12 1.5 9 9 ------------------------------ 1 0.1 8392 8392 1 0.1 8538 8538 1 0.1 8923 8923 1 0.1 8989 8989 1 0.1 9050 9050 3 0.4 11279 11279 2 0.3 12356 12356 1 0.1 14584 14584 6 0.8 16500 16500 3 0.4 58602 58602 LTCCS Codebook SaferCarrier Data Set • 281 Codebook – SaferCarrier Data Set Format Type Length Variable Name OT45F Numeric 8 MileageYear Definition: Documents the calendar year on the carrier’s MCS-150 form that represents the year in which the Carrier-Reported Mileage was obtained. N Prcnt Code Label 1 0.1 1 1 7 0.9 1997 1997 21 2.6 1998 1998 35 4.4 1999 1999 127 16.0 2000 2000 157 19.7 2001 2001 178 22.4 2002 2002 11 1.4 2003 2003 259 32.5 999999999999 Unknown Format Type Length Variable Name OT45F Numeric 8 Mileage Definition: Documents the carrier’s total fleet mileage to the nearest 10,000 miles for the last calendar year, as reported by the carrier on the MCS-150 form. N Prcnt Code Label 253 31.8 0 0 2 0.3 3000 3000 1 0.1 6000 6000 1 0.1 7578 7578 6 0.8 10000 10000 1 0.1 13000 13000 1 0.1 19000 19000 3 0.4 20000 20000 1 0.1 24000 24000 1 0.1 25555 25555 ----------------------------------- 1 0.1 629383966 629383966 1 0.1 662800784 662800784 1 0.1 670000000 670000000 1 0.1 780110000 780110000 1 0.1 1002438610 1002438610 1 0.1 1094690409 1094690409 2 0.3 1522597573 1522597573 6 0.8 1665000000 1665000000 LTCCS Codebook SaferCarrier Data Set • 282 Codebook – SaferCarrier Data Set N Prcnt Code Label 1 0.1 1697000000 1697000000 5 0.6 999999999999 Unknown LTCCS Codebook SaferCarrier Data Set • 283 Codebook – SaferCrashSummary Data Set SaferCrashSummary Data Set The SaferCrashSummary data set contains summary crash information for the driver’s carrier reported to the FMCSA for a period of 4 years. Each record represents one year of data and four records are stored for each vehicle/driver for which this carrier information is available. The SaferCrashSummary data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID, VehicleNumber and SCSYear uniquely identify each record in this data set. CaseID and VehicleNumber should be used to merge the SaferCrashSummary data set with vehicle level data sets. Format Type Length Variable Name BEST8 Numeric 8 SCSYear Definition: Identifies the year from which the crash data is taken. N Prcnt Code Label 495 17.8 2000 2000 696 25.0 2001 2001 696 25.0 2002 2002 696 25.0 2003 2003 201 7.2 2004 2004 Format Type Length Variable Name BEST8 Numeric 8 SCSFatalities Definition: Documents the number of crashes that caused at least one fatality for this carrier in a particular year. This number includes both the carrier’s driver(s) and occupants in any other involved vehicles. N Prcnt Code Label 2,178 78.2 0 0 334 12.0 1 1 76 2.7 2 2 42 1.5 3 3 26 0.9 4 4 22 0.8 5 5 18 0.6 6 6 13 0.5 7 7 10 0.4 8 8 6 0.2 9 9 7 0.3 10 10 7 0.3 11 11 3 0.1 12 12 3 0.1 13 13 1 0.0 14 14 3 0.1 15 15 LTCCS Codebook SaferCrashSummary Data Set • 284 Codebook – SaferCrashSummary Data Set N Prcnt Code Label 2 0.1 16 16 1 0.0 19 19 6 0.2 20 20 9 0.3 21 21 2 0.1 22 22 2 0.1 23 23 2 0.1 24 24 1 0.0 27 27 1 0.0 29 29 5 0.2 30 30 4 0.1 31 31 Variable Name Format Type Length BEST8 Numeric 8 SCSInjuries Definition: Documents the number of crashes that caused at least one injury for this carrier in a particular year. This number includes both the carrier’s driver(s) and occupants in any other involved vehicles. N Prcnt Code Label 1,319 47.4 0 0 508 18.2 1 1 213 7.7 2 2 114 4.1 3 3 94 3.4 4 4 66 2.4 5 5 43 1.5 6 6 31 1.1 7 7 28 1.0 8 8 32 1.1 9 9 ------------------------------ 2 0.1 239 239 2 0.1 242 242 2 0.1 251 251 1 0.0 260 260 2 0.1 261 261 1 0.0 308 308 1 0.0 327 327 5 0.2 329 329 4 0.1 376 376 1 0.0 377 377 LTCCS Codebook SaferCrashSummary Data Set • 285 Codebook – SaferCrashSummary Data Set Format Type Length Variable Name BEST8 Numeric 8 SCSTowaway Definition: Documents the number of crashes that caused at least one vehicle to be towed from the scene of a crash involving one of this carrier’s vehicles in a particular year. This number includes both the carrier vehicle and any other involved vehicles. N Prcnt Code Label 1,307 46.9 0 0 445 16.0 1 1 209 7.5 2 2 138 5.0 3 3 76 2.7 4 4 72 2.6 5 5 44 1.6 6 6 43 1.5 7 7 27 1.0 8 8 21 0.8 9 9 ------------------------------ 1 0.0 323 323 1 0.0 328 328 1 0.0 382 382 5 0.2 388 388 1 0.0 458 458 1 0.0 538 538 1 0.0 545 545 4 0.1 551 551 1 0.0 616 616 4 0.1 635 635 LTCCS Codebook SaferCrashSummary Data Set • 286 Codebook – SaferDriverCrashReport Data Set SaferDriverCrashReport Data Set The SaferDriverCrashReport data set contains historical information for previous crashes involving the driver from the FMCSA SAFER database. One record of this information is stored for each previous crash listed on inspection reports for the driver. This information is provided for each vehicle/driver where available. The SaferDriverCrashReport data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber should be used to merge the SaferDriverCrashReport data set with the SaferDriverInspection data set and vehicle level data sets. Format Type Length Variable Name $7 Char 7 SCDDate Definition: Identifies the date of a particular crash. N Prcnt Code Label 2 0.9 * 2001-04 3 1.4 * 2001-07 7 3.3 * 2001-08 6 2.8 * 2001-09 16 7.4 * 2001-10 5 2.3 * 2001-11 1 0.5 * 2001-12 8 3.7 * 2002-01 9 4.2 * 2002-02 14 6.5 * 2002-03 11 5.1 * 2002-04 7 3.3 * 2002-05 5 2.3 * 2002-06 7 3.3 * 2002-07 8 3.7 * 2002-08 12 5.6 * 2002-09 8 3.7 * 2002-10 10 4.7 * 2002-11 5 2.3 * 2002-12 8 3.7 * 2003-01 6 2.8 * 2003-02 13 6.0 * 2003-03 8 3.7 * 2003-04 5 2.3 * 2003-05 3 1.4 * 2003-06 9 4.2 * 2003-07 3 1.4 * 2003-08 9 4.2 * 2003-10 LTCCS Codebook SaferDriverCrashReport Data Set • 287 Codebook – SaferDriverCrashReport Data Set N Prcnt Code Label 1 0.5 * 2003-11 6 2.8 * 2003-12 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $2 Char 2 SCDState Definition: Identifies the State in which a particular crash occurred. N Prcnt Code Label 25 11.6 * AL 36 16.7 * AZ 16 7.4 * CA 8 3.7 * CO 1 0.5 * DE 12 5.6 * FL 2 0.9 * IA 5 2.3 * IL 25 11.6 * IN 1 0.5 * KY 4 1.9 * MD 3 1.4 * MI 14 6.5 * NE 6 2.8 * NJ 4 1.9 * NY 7 3.3 * PA 6 2.8 * TN 17 7.9 * TX 21 9.8 * WA 2 0.9 * WV Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $4 Char 4 SCDDateOfBirth Definition: Identifies the driver’s year of birth for a particular crash. N Prcnt Code Label 2 0.9 * 1931 1 0.5 * 1932 1 0.5 * 1935 1 0.5 * 1936 2 0.9 * 1937 4 1.9 * 1940 LTCCS Codebook SaferDriverCrashReport Data Set • 288 Codebook – SaferDriverCrashReport Data Set N Prcnt Code Label 1 0.5 * 1941 2 0.9 * 1942 2 0.9 * 1943 3 1.4 * 1944 2 0.9 * 1945 4 1.9 * 1946 4 1.9 * 1947 3 1.4 * 1948 2 0.9 * 1949 5 2.3 * 1950 8 3.7 * 1951 2 0.9 * 1952 6 2.8 * 1953 5 2.3 * 1954 3 1.4 * 1955 11 5.1 * 1956 13 6.0 * 1957 5 2.3 * 1958 8 3.7 * 1959 11 5.1 * 1960 6 2.8 * 1961 11 5.1 * 1962 7 3.3 * 1963 6 2.8 * 1964 6 2.8 * 1965 5 2.3 * 1966 3 1.4 * 1967 6 2.8 * 1968 5 2.3 * 1969 4 1.9 * 1970 4 1.9 * 1971 2 0.9 * 1972 4 1.9 * 1973 6 2.8 * 1974 11 5.1 * 1975 6 2.8 * 1977 1 0.5 * 1978 4 1.9 * 1979 1 0.5 * 1980 1 0.5 * 1982 LTCCS Codebook SaferDriverCrashReport Data Set • 289 Codebook – SaferDriverCrashReport Data Set N Prcnt Code Label 1 0.5 * 1984 4 1.9 * 9999 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length BEST8 Numeric 8 SCDFatalities Definition: Documents the total number of fatalities as a result of a particular crash. N Prcnt Code Label 164 76.3 0 0 44 20.5 1 1 6 2.8 2 2 1 0.5 4 4 Variable Name Format Type Length BEST8 Numeric 8 SCDInjuries Definition: Documents the total number of persons injured as a result of a particular crash. N Prcnt Code Label 42 19.5 0 0 108 50.2 1 1 39 18.1 2 2 14 6.5 3 3 5 2.3 4 4 3 1.4 5 5 2 0.9 9 9 2 0.9 24 24 Format Type Length Variable Name AP1U Numeric 8 SCDTowaway Definition: Indicates whether or not a vehicle involved in a particular crash was towed away from the scene of the crash. N Prcnt Code Label 17 7.9 0 Absent 198 92.1 1 Present LTCCS Codebook SaferDriverCrashReport Data Set • 290 Codebook – SaferDriverCrashReport Data Set Variable Name Format Type Length HazardousMaterial AP1U Numeric 8 Definition: Indicates whether or not there was any hazardous material involved/released in the crash. N Prcnt Code Label 214 99.5 0 Absent 1 0.5 1 Present Variable Name Format Type Length $3 Char 3 ANL Definition: Indicates whether or not the sequence of events in the crash included a collision with an animal. N Prcnt Code Label 1 0.5 * ANL 214 99.5 * Abs Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $3 Char 3 BIK Definition: Indicates whether or not the sequence of events in the crash included a collision with a pedal cycle. N Prcnt Code Label 214 99.5 * Abs 1 0.5 * BIK Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $3 Char 3 CGO Definition: Indicates whether or not the sequence of events in the crash included a noncollision event involving a cargo loss or shift. N Prcnt Code Label 204 94.9 * Abs 11 5.1 * CGO Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SaferDriverCrashReport Data Set • 291 Codebook – SaferDriverCrashReport Data Set Variable Name Format Type Length EQF $3 Char 3 Definition: Indicates whether or not the sequence of events in the crash included a noncollision event involving a vehicle failure (e.g. brake failure, blown tire, etc.). N Prcnt Code Label 212 98.6 * Abs 3 1.4 * EQF Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $3 Char 3 FIR Definition: Indicates whether or not the sequence of events in the crash included a noncollision event involving an explosion or fire. N Prcnt Code Label 212 98.6 * Abs 3 1.4 * FIR Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $3 Char 3 FOB Definition: Indicates whether or not the sequence of events in the crash included a collision with a fixed object. N Prcnt Code Label 186 86.5 * Abs 29 13.5 * FOB Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $3 Char 3 JAK Definition: Indicates whether or not the sequence of events in the crash included a noncollision event involving a jackknife. N Prcnt Code Label 203 94.4 * Abs 12 5.6 * JAK Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SaferDriverCrashReport Data Set • 292 Codebook – SaferDriverCrashReport Data Set Variable Name Format Type Length MVH $3 Char 3 Definition: Indicates whether or not the sequence of events in the crash included a collision with a motor vehicle in transport. N Prcnt Code Label 82 38.1 * Abs 133 61.9 * MVH Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $3 Char 3 NCM Definition: Indicates whether or not the sequence of events in the crash included a noncollision event where the vehicle crossed the centerline or the median. N Prcnt Code Label 210 97.7 * Abs 5 2.3 * NCM Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $3 Char 3 NCO Definition: Indicates whether or not the sequence of events in the crash included a noncollision event not described by the other Event variable choices. N Prcnt Code Label 206 95.8 * Abs 9 4.2 * NCO Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $3 Char 3 OFR Definition: Indicates whether or not the sequence of events in the crash included a noncollision event where the vehicle ran off the roadway. N Prcnt Code Label 184 85.6 * Abs 31 14.4 * OFR Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SaferDriverCrashReport Data Set • 293 Codebook – SaferDriverCrashReport Data Set Variable Name Format Type Length OOB $3 Char 3 Definition: Indicates whether or not the sequence of events in the crash included a collision with an “other” moveable object. N Prcnt Code Label 211 98.1 * Abs 4 1.9 * OOB Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $3 Char 3 OTH Definition: Indicates whether or not the sequence of events in the crash included an “other” type of collision. N Prcnt Code Label 209 97.2 * Abs 6 2.8 * OTH Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $3 Char 3 OVR Definition: Indicates whether or not the sequence of events in the crash included a noncollision event involving an overturn/rollover. N Prcnt Code Label 187 87.0 * Abs 28 13.0 * OVR Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $3 Char 3 PED Definition: Indicates whether or not the sequence of events in the crash included a collision with a pedestrian. N Prcnt Code Label 212 98.6 * Abs 3 1.4 * PED Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SaferDriverCrashReport Data Set • 294 Codebook – SaferDriverCrashReport Data Set Variable Name Format Type Length PVH $3 Char 3 Definition: Indicates whether or not the sequence of events in the crash included a collision with a parked motor vehicle. N Prcnt Code Label 211 98.1 * Abs 4 1.9 * PVH Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $3 Char 3 RUN Definition: Indicates whether or not the sequence of events in the crash included a collision that involved a downhill runaway vehicle. N Prcnt Code Label 211 98.1 * Abs 4 1.9 * RUN Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $3 Char 3 SEP Definition: Indicates whether or not the sequence of events in the crash included a noncollision event involving a separation of units. N Prcnt Code Label 215 100.0 * Abs Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $3 Char 3 TRN Definition: Indicates whether or not the sequence of events in the crash included a collision with a train. N Prcnt Code Label 214 99.5 * Abs 1 0.5 * TRN Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SaferDriverCrashReport Data Set • 295 Codebook – SaferDriverCrashReport Data Set Variable Name Format Type Length UMO $3 Char 3 Definition: Indicates whether or not the sequence of events in the crash included a collision with an unknown moveable object. N Prcnt Code Label 215 100.0 * Abs Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $3 Char 3 UNK Definition: Indicates whether or not the sequence of events in the crash included a noncollision event of an unknown nature. N Prcnt Code Label 215 100.0 * Abs Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $3 Char 3 WZE Definition: Indicates whether or not the sequence of events in the crash included a collision with work zone maintenance equipment. N Prcnt Code Label 215 100.0 * Abs Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SaferDriverCrashReport Data Set • 296 Codebook – SaferDriverInspection Data Set SaferDriverInspection Data Set The SaferDriverInspection data set contains inspection information for the driver while employed by this carrier from the FMCSA SAFER database. One record of this information is stored for each inspection report and is provided for each vehicle/driver where available. The SaferDriverInspection data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber should be used to merge the SaferDriverInspection data set with vehicle level data sets. Format Type Length Variable Name BEST8 Numeric 8 LevelCode Definition: Indicates the level of the inspection for a particular inspection. N Prcnt Code Label 392 49.3 1 1 201 25.3 2 2 182 22.9 3 3 20 2.5 4 4 Format Type Length Variable Name $7 Char 7 SDIDate Definition: Documents the date of a particular inspection. N Prcnt Code Label 1 0.1 * 2001-02 1 0.1 * 2001-03 2 0.3 * 2001-04 5 0.6 * 2001-05 13 1.6 * 2001-06 13 1.6 * 2001-07 23 2.9 * 2001-08 13 1.6 * 2001-09 16 2.0 * 2001-10 20 2.5 * 2001-11 8 1.0 * 2001-12 25 3.1 * 2002-01 24 3.0 * 2002-02 24 3.0 * 2002-03 32 4.0 * 2002-04 34 4.3 * 2002-05 53 6.7 * 2002-06 40 5.0 * 2002-07 45 5.7 * 2002-08 LTCCS Codebook SaferDriverInspection Data Set • 297 Codebook – SaferDriverInspection Data Set N Prcnt Code Label 44 5.5 * 2002-09 29 3.6 * 2002-10 38 4.8 * 2002-11 40 5.0 * 2002-12 33 4.2 * 2003-01 28 3.5 * 2003-02 37 4.7 * 2003-03 29 3.6 * 2003-04 21 2.6 * 2003-05 29 3.6 * 2003-06 19 2.4 * 2003-07 15 1.9 * 2003-08 11 1.4 * 2003-09 15 1.9 * 2003-10 4 0.5 * 2003-11 11 1.4 * 2003-12 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $2 Char 2 SDIState Definition: Documents the State in which a particular inspection took place. N Prcnt Code Label 31 3.9 * AL 19 2.4 * AR 48 6.0 * AZ 75 9.4 * CA 45 5.7 * CO 21 2.6 * FL 11 1.4 * GA 12 1.5 * IA 1 0.1 * ID 37 4.7 * IL 30 3.8 * IN 5 0.6 * KS 18 2.3 * KY 3 0.4 * LA 36 4.5 * MD 31 3.9 * MI 11 1.4 * MO 11 1.4 * MS 5 0.6 * MT 12 1.5 * NC LTCCS Codebook SaferDriverInspection Data Set • 298 Codebook – SaferDriverInspection Data Set N Prcnt Code Label 31 3.9 * NE 25 3.1 * NJ 14 1.8 * NM 1 0.1 * NV 10 1.3 * NY 17 2.1 * OH 12 1.5 * OR 38 4.8 * PA 1 0.1 * RI 3 0.4 * SC 4 0.5 * SD 43 5.4 * TN 29 3.6 * TX 1 0.1 * US 8 1.0 * UT 3 0.4 * VA 82 10.3 * WA 8 1.0 * WI 2 0.3 * WV 1 0.1 * WY Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $4 Char 4 SDIDriverDOB Definition: Documents the driver’s year of birth as it relates to a particular inspection. N Prcnt Code Label 1 0.1 * 1928 1 0.1 * 1930 3 0.4 * 1931 4 0.5 * 1932 1 0.1 * 1935 1 0.1 * 1936 3 0.4 * 1937 1 0.1 * 1938 1 0.1 * 1939 17 2.1 * 1940 2 0.3 * 1941 10 1.3 * 1942 13 1.6 * 1943 18 2.3 * 1944 7 0.9 * 1945 7 0.9 * 1946 LTCCS Codebook SaferDriverInspection Data Set • 299 Codebook – SaferDriverInspection Data Set N Prcnt Code Label 7 0.9 * 1947 5 0.6 * 1948 8 1.0 * 1949 11 1.4 * 1950 36 4.5 * 1951 12 1.5 * 1952 24 3.0 * 1953 49 6.2 * 1954 12 1.5 * 1955 12 1.5 * 1956 45 5.7 * 1957 15 1.9 * 1958 20 2.5 * 1959 24 3.0 * 1960 17 2.1 * 1961 15 1.9 * 1962 15 1.9 * 1963 16 2.0 * 1964 16 2.0 * 1965 18 2.3 * 1966 33 4.2 * 1967 18 2.3 * 1968 13 1.6 * 1969 26 3.3 * 1970 28 3.5 * 1971 23 2.9 * 1972 26 3.3 * 1973 15 1.9 * 1974 33 4.2 * 1975 12 1.5 * 1976 9 1.1 * 1977 3 0.4 * 1978 8 1.0 * 1979 6 0.8 * 1980 1 0.1 * 1981 4 0.5 * 1982 2 0.3 * 8888 68 8.6 * 9999 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SaferDriverInspection Data Set • 300 Codebook – SaferDriverInspection Data Set Variable Name Format Type Length BEST8 Numeric 8 SDITotalViolations Definition: Indicates the total number of violations found during a particular inspection. N Prcnt Code Label 207 26.0 0 0 190 23.9 1 1 131 16.5 2 2 85 10.7 3 3 37 4.7 4 4 36 4.5 5 5 28 3.5 6 6 25 3.1 7 7 16 2.0 8 8 6 0.8 9 9 8 1.0 10 10 8 1.0 11 11 7 0.9 12 12 2 0.3 13 13 1 0.1 14 14 2 0.3 15 15 1 0.1 17 17 2 0.3 18 18 1 0.1 21 21 1 0.1 23 23 1 0.1 24 24 Format Type Length Variable Name BEST8 Numeric 8 TotalOOS Definition: Indicates the total number of out-of-service violations found during a particular inspection. N Prcnt Code Label 568 71.4 0 0 139 17.5 1 1 41 5.2 2 2 15 1.9 3 3 17 2.1 4 4 6 0.8 5 5 1 0.1 6 6 1 0.1 7 7 1 0.1 8 8 LTCCS Codebook SaferDriverInspection Data Set • 301 Codebook – SaferDriverInspection Data Set N Prcnt Code Label 2 0.3 10 10 1 0.1 15 15 Variable Name SDIHazMat Format BEST8 Type Numeric Length 8 Definition: Indicates whether or not a particular inspection involved hazardous materials. N Prcnt Code Label 746 93.8 0 0 49 6.2 1 1 LTCCS Codebook SaferDriverInspection Data Set • 302 Codebook – SaferDriverViolation Data Set SaferDriverViolation Data Set The SaferDriverViolation data set includes information on any violation issued to the driver while employed by this carrier from the FMCSA SAFER database. One record of this information is stored for each violation listed on inspection reports for the driver. This information is provided for each vehicle/driver where available. The SaferDriverViolation data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber should be used to merge the SaferDriverViolation data set with the SaferDriverInspection data set and vehicle level data sets. Format Type Length Variable Name $10 Char 10 SDVViolation Definition: Lists the different types of violations assigned to this particular driver within a particular time period. N Prcnt Code Label 68 10.6 * BRKADJ 110 17.1 * BRKOTH 4 0.6 * COUPLR 26 4.0 * EMREQP 11 1.7 * EXHST 10 1.6 * FRAMES 3 0.5 * FUEL 3 0.5 * HPLCRD 1 0.2 * IMPTRN 11 1.7 * LDSECR 130 20.2 * LIGHTS 2 0.3 * LOGVIO 45 7.0 * OTHDRV 72 11.2 * OTHER 17 2.6 * PERINS 7 1.1 * SIZWGT 11 1.7 * STERNG 26 4.0 * SUSPEN 57 8.9 * TIRES 9 1.4 * WHEELS 20 3.1 * WNDSHL Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SaferDriverViolation Data Set • 303 Codebook – SaferDriverViolation Data Set Variable Name UnitNumber Format BEST8 Type Numeric Length 8 Definition: Is an identifier used to distinguish individual units inspected. N Prcnt Code Label 417 64.9 1 1 213 33.1 2 2 12 1.9 3 3 1 0.2 4 4 Variable Name SDVUnitType Format $10 Type Char Length 10 Definition: Indicates the type of unit on which a particular inspection is conducted. N Prcnt Code Label 15 2.3 * FT 1 0.2 * SB 212 33.0 * ST 127 19.8 * TR 288 44.8 * TT Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $10 Char 10 SDVOutOfService Definition: Documents the number of out-of-service violations for a particular driver within a particular time period. N Prcnt Code Label 476 74.0 * 0 167 26.0 * 1 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SaferDriverViolation Data Set • 304 Codebook – SaferInspectionsSummary Data Set SaferInspectionsSummary Data Set The SaferInspectionsSummary data set contains a summary of vehicle, driver, and hazardous material inspection information for the driver’s carrier reported to the FMCSA for the period of 2 years prior to the date of inquiry. This material is provided as one record per vehicle/driver for which this carrier information is available. The SaferInspectionsSummary data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the SaferInspectionsSummary data set with vehicle level data sets. Format Type Length Variable Name BEST8 Numeric 8 DriverInspections Definition: Documents the total number of driver inspections for this carrier in the 24 months prior to the date of inquiry. N Prcnt Code Label 15 1.9 0 0 16 2.0 1 1 13 1.6 2 2 13 1.6 3 3 25 3.1 4 4 10 1.3 5 5 4 0.5 6 6 15 1.9 7 7 14 1.8 8 8 7 0.9 9 9 ------------------------------ 1 0.1 18841 18841 1 0.1 18854 18854 1 0.1 18981 18981 1 0.1 18989 18989 1 0.1 19128 19128 1 0.1 30240 30240 1 0.1 30270 30270 1 0.1 57961 57961 1 0.1 60788 60788 4 0.5 62076 62076 LTCCS Codebook SaferInspectionsSummary Data Set • 305 Codebook – SaferInspectionsSummary Data Set Variable Name Format Type Length BEST8 Numeric 8 DriverOutOfService Definition: Documents the total number of driver out-of-service inspections where out-of-service violations were found for this carrier in the 24 months prior to the date of inquiry. N Prcnt Code Label 182 22.9 0 0 98 12.3 1 1 73 9.2 2 2 33 4.1 3 3 34 4.3 4 4 23 2.9 5 5 24 3.0 6 6 13 1.6 7 7 11 1.4 8 8 14 1.8 9 9 ------------------------------- 1 0.1 987 987 1 0.1 1006 1006 1 0.1 1020 1020 1 0.1 1178 1178 1 0.1 1218 1218 1 0.1 1219 1219 1 0.1 1227 1227 1 0.1 2999 2999 1 0.1 3066 3066 4 0.5 3100 3100 Format Type Length Variable Name BEST8 Numeric 8 DriverOutOfServicePerc Definition: Documents the percentage of inspections that resulted in one or more driver out-of-service violations for this carrier in the 24 months prior to the date of inquiry. N Prcnt Code Label 200 25.1 0 0 50 6.3 1 1 97 12.2 2 2 42 5.3 3 3 53 6.7 4 4 72 9.0 5 5 58 7.3 6 6 25 3.1 7 7 LTCCS Codebook SaferInspectionsSummary Data Set • 306 Codebook – SaferInspectionsSummary Data Set N Prcnt Code Label 35 4.4 8 8 15 1.9 9 9 14 1.8 10 10 19 2.4 11 11 25 3.1 12 12 4 0.5 13 13 7 0.9 14 14 3 0.4 15 15 4 0.5 16 16 13 1.6 17 17 2 0.3 18 18 5 0.6 19 19 2 0.3 20 20 2 0.3 21 21 5 0.6 22 22 1 0.1 24 24 9 1.1 25 25 5 0.6 26 26 1 0.1 27 27 1 0.1 30 30 3 0.4 31 31 1 0.1 34 34 2 0.3 35 35 1 0.1 36 36 1 0.1 45 45 2 0.3 50 50 1 0.1 56 56 13 1.6 57 57 2 0.3 58 58 1 0.1 67 67 Format Type Length Variable Name F16.2 Numeric 8 DriverViolationsAverage Definition: Documents the average number of driver out-of-service violations found per inspection for this carrier in the 24 months prior to the date of inquiry. N Prcnt Code Label 690 86.7 0 0 18 2.3 1 1 88 11.1 9999999999999 999999999999 LTCCS Codebook SaferInspectionsSummary Data Set • 307 Codebook – SaferInspectionsSummary Data Set Format Type Length Variable Name BEST8 Numeric 8 VehicleInspections Definition: Documents the total number of vehicle inspections for this carrier in the 24 months prior to the date of inquiry. N Prcnt Code Label 21 2.6 0 0 18 2.3 1 1 16 2.0 2 2 24 3.0 3 3 14 1.8 4 4 16 2.0 5 5 6 0.8 6 6 7 0.9 7 7 18 2.3 8 8 18 2.3 9 9 ------------------------------ 1 0.1 11574 11574 1 0.1 11587 11587 1 0.1 11601 11601 1 0.1 12112 12112 1 0.1 12270 12270 1 0.1 20083 20083 1 0.1 20100 20100 1 0.1 35545 35545 1 0.1 36922 36922 4 0.5 37747 37747 Format Type Length Variable Name BEST8 Numeric 8 VehicleOutOfService Definition: Documents the total number of vehicle out-of-service inspections where out-of-service violations were found for this carrier in the 24 months prior to the date of inquiry. N Prcnt Code Label 71 8.9 0 0 55 6.9 1 1 61 7.7 2 2 26 3.3 3 3 38 4.8 4 4 31 3.9 5 5 13 1.6 6 6 14 1.8 7 7 14 1.8 8 8 21 2.6 9 9 LTCCS Codebook SaferInspectionsSummary Data Set • 308 Codebook – SaferInspectionsSummary Data Set N Prcnt Code Label ------------------------------ 1 0.1 1764 1764 1 0.1 2302 2302 1 0.1 2389 2389 1 0.1 2445 2445 1 0.1 2450 2450 1 0.1 2941 2941 1 0.1 2948 2948 1 0.1 5940 5940 1 0.1 6242 6242 4 0.5 6338 6338 Variable Name Format Type Length BEST8 Numeric 8 VehicleOutOfServicePerc Definition: Documents the percentage of inspections that resulted in one or more vehicle out-of-service violations for this carrier in the 24 months prior to the date of inquiry. N Prcnt Code Label 130 16.3 0 0 5 0.6 1 1 3 0.4 2 2 5 0.6 3 3 5 0.6 4 4 14 1.8 5 5 11 1.4 6 6 15 1.9 7 7 9 1.1 8 8 12 1.5 9 9 ------------------------------- 3 0.4 54 54 13 1.6 57 57 18 2.3 58 58 1 0.1 62 62 1 0.1 63 63 4 0.5 67 67 3 0.4 68 68 1 0.1 70 70 4 0.5 75 75 2 0.3 100 100 LTCCS Codebook SaferInspectionsSummary Data Set • 309 Codebook – SaferInspectionsSummary Data Set Format Type Length Variable Name F16.2 Numeric 8 VehicleViolationsAverage Definition: Documents the average number of vehicle out-of-service violations found per inspection for this carrier in the 24 months prior to the date of inquiry. N Prcnt Code Label 562 70.6 0 0.00 133 16.7 1 1.00 12 1.5 2 2.00 1 0.1 3 3.00 88 11.1 999999999999 999999999999.00 Format Type Length Variable Name BEST8 Numeric 8 HazmatInspections Definition: Documents the total number of Hazmat inspections for this carrier in the 24 months prior to the date of inquiry. N Prcnt Code Label 462 58.0 0 0 46 5.8 1 1 34 4.3 2 2 13 1.6 3 3 7 0.9 4 4 8 1.0 5 5 10 1.3 6 6 10 1.3 7 7 4 0.5 8 8 1 0.1 9 9 ------------------------------ 2 0.3 1903 1903 1 0.1 1928 1928 1 0.1 1991 1991 1 0.1 2052 2052 4 0.5 2088 2088 3 0.4 2299 2299 1 0.1 2362 2362 1 0.1 2561 2561 1 0.1 2611 2611 1 0.1 5428 5428 LTCCS Codebook SaferInspectionsSummary Data Set • 310 Codebook – SaferInspectionsSummary Data Set Variable Name Format Type Length BEST8 Numeric 8 HazmatOutOfService Definition: Documents the total number of Hazmat out-of-service inspections where out-of-service violations were found for this carrier in the 24 months prior to the date of inquiry. N Prcnt Code Label 590 74.1 0 0 56 7.0 1 1 19 2.4 2 2 9 1.1 3 3 12 1.5 4 4 11 1.4 5 5 7 0.9 6 6 3 0.4 7 7 8 1.0 8 8 19 2.4 9 9 7 0.9 12 12 3 0.4 13 13 1 0.1 14 14 3 0.4 15 15 2 0.3 16 16 3 0.4 18 18 1 0.1 19 19 1 0.1 22 22 3 0.4 25 25 1 0.1 26 26 1 0.1 28 28 1 0.1 34 34 1 0.1 36 36 2 0.3 42 42 1 0.1 43 43 1 0.1 46 46 1 0.1 48 48 2 0.3 49 49 1 0.1 54 54 1 0.1 56 56 1 0.1 57 57 2 0.3 63 63 1 0.1 65 65 1 0.1 68 68 1 0.1 71 71 1 0.1 77 77 LTCCS Codebook SaferInspectionsSummary Data Set • 311 Codebook – SaferInspectionsSummary Data Set N Prcnt Code Label 1 0.1 78 78 2 0.3 84 84 2 0.3 85 85 1 0.1 100 100 1 0.1 104 104 1 0.1 111 111 1 0.1 124 124 3 0.4 129 129 1 0.1 135 135 1 0.1 138 138 4 0.5 139 139 Variable Name Format Type Length F9.2 Numeric 8 HazmatOutOfServicePerc Definition: Documents the percentage of inspections that resulted in one or more Hazmat out-of-service violations for this carrier in the 24 months prior to the date of inquiry. N Prcnt Code Label 528 66.3 0 0.00 11 1.4 1 1.00 8 1.0 2 2.00 13 1.6 3 3.00 31 3.9 4 4.00 17 2.1 5 5.00 24 3.0 6 6.00 10 1.3 7 7.00 6 0.8 8 8.00 5 0.6 9 9.00 7 0.9 10 10.00 4 0.5 11 11.00 7 0.9 12 12.00 2 0.3 13 13.00 1 0.1 15 15.00 2 0.3 16 16.00 5 0.6 17 17.00 5 0.6 20 20.00 1 0.1 23 23.00 10 1.3 25 25.00 1 0.1 33 33.00 10 1.3 50 50.00 88 11.1 99999 99999.00 LTCCS Codebook SaferInspectionsSummary Data Set • 312 Codebook – SaferInspectionsSummary Data Set Format Type Length Variable Name F16.2 Numeric 8 HazmatViolationsAverage Definition: Documents the average number of Hazmat out-of-service violations found per inspection for this carrier in the 24 months prior to the date of inquiry. N Prcnt Code Label 706 88.7 0 0.00 1 0.1 1 1.00 1 0.1 2 2.00 88 11.1 999999999999 999999999999.00 Variable Name Format Type Length BEST8 Numeric 8 SISTotal Definition: Documents the total number of inspections (any type) for this carrier in the 24 months prior to the date of inquiry. The Total Number Of Inspections may not reflect a simple addition of all the driver, vehicle, and Hazmat inspections because two or more of these types of violations may occur on the same inspection. N Prcnt Code Label 14 1.8 0 0 15 1.9 1 1 15 1.9 2 2 10 1.3 3 3 23 2.9 4 4 13 1.6 5 5 5 0.6 6 6 12 1.5 7 7 17 2.1 8 8 6 0.8 9 9 ------------------------------ 1 0.1 18962 18962 1 0.1 19093 19093 1 0.1 19104 19104 1 0.1 19217 19217 1 0.1 19257 19257 1 0.1 30582 30582 1 0.1 30608 30608 1 0.1 58513 58513 1 0.1 61334 61334 4 0.5 62663 62663 LTCCS Codebook SaferInspectionsSummary Data Set • 313 Codebook – SaferInsurance Data Set SaferInsurance Data Set The SaferInsurance data set includes information on the type and status of insurance that the driver’s carrier holds from the FMCSA SAFER database. This material is provided as one record per vehicle/driver for which this carrier information is available. The SaferInsurance data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the SaferInsurance data set with vehicle level data sets. Format Type Length Variable Name $2 Char 2 BIPDRequired Definition: Documents whether or not the carrier is required to have Bodily Injury & Property Damage insurance coverage. N Prcnt Code Label 64 10.6 * N 23 3.8 * NA 518 85.6 * Y Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $20 Char 20 BIPDOK Definition: Documents whether or not the carrier has the required Bodily Injury & Property Damage insurance coverage. N Prcnt Code Label 23 3.8 * NA 2 0.3 * NO 10 1.7 * NOT OK 570 94.2 * OK Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $20 Char 20 CargoRequired Definition: Documents whether or not the carrier is required to have cargo insurance coverage. N Prcnt Code Label 23 3.8 * NA 232 38.3 * NOT REQUIRED 350 57.9 * REQUIRED Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SaferInsurance Data Set • 314 Codebook – SaferInsurance Data Set Format Type Length Variable Name $20 Char 20 CargoOK Definition: Documents whether or not the carrier has cargo insurance coverage when required to have this type of coverage. N Prcnt Code Label 23 3.8 * NA 1 0.2 * NO 6 1.0 * NOT OK 575 95.0 * OK Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $20 Char 20 BondRequired Definition: Documents whether or not a $10,000 surety bond is required for the broker’s license (authority). N Prcnt Code Label 23 3.8 * NA 445 73.6 * NOT REQUIRED 137 22.6 * REQUIRED Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length $20 Char 20 BondOK Definition: Documents whether or not the surety bond was in place on the broker’s license (authority). N Prcnt Code Label 23 3.8 * NA 2 0.3 * NOT OK 580 95.9 * OK Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name F16.2 Numeric 8 MinCoverageAmount Definition: Documents (in thousands of dollars) the minimum amount of liability insurance coverage that this carrier is required to have. N Prcnt Code Label 1 0.2 300 300 388 64.1 750 750 146 24.1 1000 1000 1 0.2 1500 1500 LTCCS Codebook SaferInsurance Data Set • 315 Codebook – SaferInsurance Data Set N 46 23 Prcnt 7.6 3.8 Code 5000 8888888887 Label 5000 8888888887 Variable Name LiabilityInsurance Format $20 Type Char Length 20 Definition: Documents the amount (in thousands of dollars) of the liability insurance coverage that this carrier has. N Prcnt Code Label 23 3.8 * NA 64 10.6 * NOT REQUIRED 133 22.0 * REQUIRED: $1000 1 0.2 * REQUIRED: $1500 1 0.2 * REQUIRED: $300 40 6.6 * REQUIRED: $5000 343 56.7 * REQUIRED: $750 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SaferInsurance Data Set • 316 Codebook – SaferReview Data Set SaferReview Data Set The SaferReview data set contains the safety ratings of the driver’s carrier based on their compliance with FMCSA regulations from the FMCSA SAFER database. One record of this information is provided for each carrier review and reviews are stored for each vehicle/driver where this information is available. The SaferReview data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID, VehicleNumber and ReviewDate uniquely identify each record in this data set. CaseID and VehicleNumber should be used to merge the SaferReview data set with vehicle level data sets. Variable Name Format Type Length $7 Char 7 RatingDate Definition: Documents the date that the current Federal safety rating was assigned to this carrier. N Prcnt Code Label 2 0.1 * 1986-09 1 0.1 * 1986-11 3 0.2 * 1986-12 2 0.1 * 1987-01 1 0.1 * 1987-03 2 0.1 * 1987-04 4 0.3 * 1987-05 6 0.4 * 1987-06 6 0.4 * 1987-07 6 0.4 * 1987-08 ------------------------------ 4 0.3 * 2002-09 4 0.3 * 2002-10 4 0.3 * 2002-11 3 0.2 * 2002-12 3 0.2 * 2003-01 3 0.2 * 2003-02 2 0.1 * 2003-03 4 0.3 * 2003-04 1 0.1 * 2003-05 1 0.1 * 2003-06 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SaferReview Data Set • 317 Codebook – SaferReview Data Set Format Type Length Variable Name $30 Char 30 Rating Definition: Documents the current Federal safety rating assigned to this carrier. N Prcnt Code Label 74 4.7 999999999 999999999 387 24.5 * CONDITIONAL 996 63.0 * SATISFACTORY 1 0.1 * UNSATISFACTO 123 7.8 * UNSATISFACTORY Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name $7 Char 7 ReviewDate Definition: Documents the date that the most recent Safety/Compliance Review was performed on this carrier. N Prcnt Code Label 2 0.1 * 1986-09 2 0.1 * 1986-11 5 0.3 * 1986-12 6 0.4 * 1987-01 3 0.2 * 1987-02 10 0.6 * 1987-03 2 0.1 * 1987-04 8 0.5 * 1987-05 12 0.8 * 1987-06 9 0.6 * 1987-07 ------------------------------ 3 0.2 * 2002-08 2 0.1 * 2002-09 6 0.4 * 2002-10 5 0.3 * 2002-11 1 0.1 * 2002-12 4 0.3 * 2003-01 2 0.1 * 2003-02 3 0.2 * 2003-03 1 0.1 * 2003-04 1 0.1 * 2003-05 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SaferReview Data Set • 318 Codebook – SaferReview Data Set Format Type Length Variable Name $30 Char 30 ReviewType Definition: Documents the type of review performed on this carrier. N Prcnt Code Label 1,349 85.3 * COMPLIANCE 1 0.1 * EDUC CONTACT 3 0.2 * NON-RATABLE 227 14.4 * SAFETY 1 0.1 * SHIPPER Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SaferReview Data Set • 319 Codebook – SafeStat Data Set SafeStat Data Set The SafeStat data set contains safety statistics for the driver’s carrier from the FMCSA SAFER database. Scores are compiled for driver, vehicle, accident, and the safety management areas. One record of this information is provided for each SafeStat score assigned to a carrier. These scores are stored for each vehicle/driver where this information is available. The SafeStat data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber should be used to merge the SafeStat data set with other vehicle level data sets. Format Type Length Variable Name $7 Char 7 STADate Definition: Establishes the date that a particular SafeStat score was assigned to a carrier. N Prcnt Code Label 1 0.1 * 2002-02 49 2.6 * 2002-03 4 0.2 * 2002-04 9 0.5 * 2002-05 102 5.4 * 2002-06 11 0.6 * 2002-07 1 0.1 * 2002-08 134 7.1 * 2002-09 262 13.9 * 2002-11 289 15.4 * 2003-01 152 8.1 * 2003-02 146 7.8 * 2003-03 137 7.3 * 2003-04 130 6.9 * 2003-05 121 6.4 * 2003-06 100 5.3 * 2003-07 83 4.4 * 2003-08 72 3.8 * 2003-09 46 2.4 * 2003-10 26 1.4 * 2003-11 7 0.4 * 2003-12 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SafeStat Data Set • 320 Codebook – SafeStat Data Set Format Type Length Variable Name OT36F Numeric 8 Score Definition: Documents the overall SafeStat Score, where SafeStat score = 2 x Accident SEA + 1.5 x Driver SEA + Vehicle SEA + Safety Management SEA. N Prcnt Code Label 2 0.1 0 0 1 0.1 162 162 1 0.1 169 169 4 0.2 170 170 2 0.1 171 171 1 0.1 183 183 1 0.1 185 185 1 0.1 193 193 2 0.1 195 195 1 0.1 198 198 ------------------------------ 1 0.1 406 406 1 0.1 407 407 1 0.1 413 413 1 0.1 414 414 2 0.1 429 429 2 0.1 431 431 1 0.1 432 432 1 0.1 433 433 1 0.1 434 434 1,700 90.3 999 Unknown Format Type Length Variable Name F12 Numeric 8 AccidentSEA Definition: Documents the SafeStat score for the Accident SEA category for this carrier. N Prcnt Code Label 561 29.8 0 0 16 0.9 1 1 18 1.0 2 2 12 0.6 3 3 19 1.0 4 4 26 1.4 5 5 36 1.9 6 6 37 2.0 7 7 9 0.5 8 8 ------------------------------- LTCCS Codebook SafeStat Data Set • 321 Codebook – SafeStat Data Set N Prcnt Code Label 10 0.5 90 90 10 0.5 91 91 8 0.4 92 92 4 0.2 93 93 6 0.3 94 94 5 0.3 95 95 7 0.4 96 96 7 0.4 97 97 7 0.4 98 98 8 0.4 99 99 Format Type Length Variable Name F12 Numeric 8 DriverSEA Definition: Documents the SafeStat score for the Driver SEA category for this carrier. N Prcnt Code Label 284 15.1 0 0 12 0.6 1 1 14 0.7 2 2 4 0.2 3 3 7 0.4 4 4 5 0.3 5 5 8 0.4 6 6 35 1.9 7 7 34 1.8 8 8 26 1.4 9 9 ------------------------------- 13 0.7 91 91 24 1.3 92 92 14 0.7 93 93 13 0.7 94 94 10 0.5 95 95 9 0.5 96 96 15 0.8 97 97 5 0.3 98 98 2 0.1 99 99 9 0.5 100 100 LTCCS Codebook SafeStat Data Set • 322 Codebook – SafeStat Data Set Format Type Length Variable Name F12 Numeric 8 VehicleSEA Definition: Documents the SafeStat score for the Vehicle SEA category for this carrier. N Prcnt Code Label 95 5.0 0 0 13 0.7 2 2 9 0.5 3 3 1 0.1 4 4 4 0.2 5 5 9 0.5 6 6 5 0.3 7 7 7 0.4 8 8 11 0.6 9 9 8 0.4 10 10 ------------------------------- 10 0.5 91 91 15 0.8 92 92 15 0.8 93 93 14 0.7 94 94 6 0.3 95 95 18 1.0 96 96 18 1.0 97 97 10 0.5 98 98 10 0.5 99 99 3 0.2 100 100 Format Type Length Variable Name F12 Numeric 8 SafetySEA Definition: Documents the SafeStat score for the Safety Management SEA category for this carrier. N Prcnt Code Label 1,519 80.7 0 0 4 0.2 52 52 9 0.5 53 53 2 0.1 56 56 28 1.5 57 57 12 0.6 58 58 9 0.5 61 61 34 1.8 62 62 6 0.3 63 63 11 0.6 65 65 LTCCS Codebook SafeStat Data Set • 323 Codebook – SafeStat Data Set N Prcnt Code Label 23 1.2 66 66 1 0.1 67 67 4 0.2 68 68 11 0.6 69 69 17 0.9 70 70 18 1.0 71 71 14 0.7 72 72 36 1.9 73 73 17 0.9 74 74 5 0.3 77 77 13 0.7 78 78 3 0.2 81 81 1 0.1 82 82 22 1.2 84 84 9 0.5 87 87 6 0.3 88 88 8 0.4 89 89 9 0.5 90 90 2 0.1 91 91 1 0.1 94 94 3 0.2 96 96 7 0.4 97 97 6 0.3 98 98 8 0.4 99 99 4 0.2 100 100 Variable Name Format Type Length $10 Char 10 STACategory Definition: Provides the letter code for the category indicator value calculated for this carrier. N Prcnt Code Label 19 1.0 * A 98 5.2 * B 63 3.3 * C 109 5.8 * D 166 8.8 * E 259 13.8 * F 45 2.4 * G 1,123 59.7 * H Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SafeStat Data Set • 324 Codebook – SafeStat Data Set Format Type Length Variable Name $50 Char 50 CategoryDescription Definition: Describes the SafeStat indicator value calculated for this carrier. N Prcnt Code Label 109 5.8 * ONLY ACCIDENT SEA >= 75 166 8.8 * ONLY DRIVER SEA >= 75 45 2.4 * ONLY SAFETY MANAGEMENT SEA >= 75 259 13.8 * ONLY VEHICLE SEA >= 75 19 1.0 * SAFESTAT SCORE >= 350 63 3.3 * SAFESTAT SCORE BETWEEN 150 AND 225 98 5.2 * SAFESTAT SCORE BETWEEN 225 AND 350 1,123 59.7 * SCORED - ALL SEAS < 75 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook SafeStat Data Set • 325 Codebook – TruckExterior Data Set TruckExterior Data Set The TruckExterior data set contains information on each truck in the crash. Passenger vehicles involved in the crash are not included in this data set but instead are covered under VehicleExterior. This material is provided as one record per truck involved in the crash. The TruckExterior data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the TruckExterior data set with vehicle level data sets. Format Type Length Variable Name ML611F Numeric 8 PowerUnitType Definition: Establishes the type of power unit involved in this crash. N Prcnt Code Label 354 28.5 1 Straight Truck 865 69.7 2 Tractor 16 1.3 7 Not Inspected 6 0.5 9 Unknown Format Type Length Variable Name ML4135F Numeric 8 CabStyle Definition: Establishes the cab style of the power unit involved in the crash. N Prcnt Code Label 1,106 89.1 1 Conventional 101 8.1 2 Cab-over-engine 8 0.6 3 Cab forward 23 1.9 7 Not Inspected 2 0.2 8 Other (specify) 1 0.1 9 Unknown Format Type Length Variable Name ML1158F Numeric 8 DromedaryBox Definition: Establishes the presence of a dromedary box on the vehicle. A dromedary box is essentially a storage box that is typically mounted on the tractor chassis immediately rearward of the rear wall of the tractor cab. Access is typically located on the sides of the vehicle. These boxes are used to store tarps, tie-downs, tools, and the driver’s personal gear. On occasion, dromedary boxes are utilized to haul cargo. N Prcnt Code Label 52 4.2 1 Yes 1,149 92.6 2 No 23 1.9 8 Not Inspected 17 1.4 99 Unknown LTCCS Codebook TruckExterior Data Set • 326 Codebook – TruckExterior Data Set Variable Name Format Type Length ML612F Numeric 8 SleeperBerth Definition: Establishes the presence of a sleeper berth as an integral part of the cab structure. N Prcnt Code Label 549 44.2 1 Yes 659 53.1 2 No 23 1.9 8 Not Inspected 10 0.8 99 Unknown Variable Name Format Type Length ML4134F Numeric 8 BlindSpot Definition: Establishes links between the vehicle’s mirror system and crash causation. N Prcnt Code Label 19 1.5 1 Yes (Specify) 1,149 92.6 2 No 25 2.0 8 Not Inspected 48 3.9 9 Unknown Variable Name Format Type Length ML1159F Numeric 8 DataRecorder Definition: Establishes the presence of an engine control/data recorder unit. N Prcnt Code Label 926 74.6 1 No 52 4.2 2 Yes (specify) 25 2.0 8 Not Inspected 238 19.2 9 Unknown Variable Name RPM Format OT55F Type Numeric Length 8 Definition: Establishes the engine RPM as obtained from the truck’s data recorder. N Prcnt Code Label 1 0.1 1620 1620 1 0.1 1740 1740 1 0.1 2304 2304 1 0.1 9995 EC/DR Unit Installed, No RPM Recording Capability 926 74.6 9996 EC/DR Unit Not Installed LTCCS Codebook TruckExterior Data Set • 327 Codebook – TruckExterior Data Set N Prcnt Code Label 25 2.0 9997 Not inpsected 238 19.2 9998 Unknown if EC/DR Unit Installed 48 3.9 9999 EC/DR Unit Installed, Unknown RPMs Variable Name Format Type Length OT57F Numeric 8 TEXSpeed Definition: Establishes the speed (in kph) of the vehicle as indicated by information obtained from the truck’s data recorder. N Prcnt Code Label 1 0.1 0 0 1 0.1 11 11 1 0.1 89 89 1 0.1 103 103 1 0.1 108 108 1 0.1 995 EC/DR Unit Installed, No Speed Recording Capability 926 74.6 996 EC/DR Unit Not Installed 25 2.0 997 Not Inspected 238 19.2 998 Unknown if EC/DR Unit Installed 46 3.7 999 EC/DR Unit Installed, Unknown Speed Format Type Length Variable Name OT56F Numeric 8 GearPosition Definition: Establishes the gear position of the truck as indicated by information obtained from the data recorder. N Prcnt Code Label 1 0.1 1 1 1 0.1 3 3 1 0.1 4 4 1 0.1 7 7 1 0.1 9 9 2 0.2 95 EC/DR Unit Installed, No Gear Position Recording Capability 926 74.6 96 EC/DR Unit Not Installed 25 2.0 97 Not Inspected 238 19.2 98 Unknown if EC/DR Unit Installed 45 3.6 99 EC/DR Unit Installed, Unknown Gear Position LTCCS Codebook TruckExterior Data Set • 328 Codebook – TruckExterior Data Set Format Type Length Variable Name OT58F Numeric 8 TrailerCount Definition: Establishes the number of trailers that are included in the vehicle configuration. N Prcnt Code Label 29 2.3 0 No Trailer *and* Power Unit Not Straight Truck 824 66.4 1 1 57 4.6 2 2 310 25.0 7 Straight Truck With No Trailers 21 1.7 8 Not Inspected Format Type Length Variable Name OT29F Numeric 8 TEXEmptyWeight Definition: Establishes the combined total empty weight (kilograms) for all units in the truck configuration. The empty weight for each unit is specified by the unit’s manufacturer. N Prcnt Code Label 1 0.1 2404 2404 1 0.1 2420 2420 1 0.1 2737 2737 1 0.1 3164 3164 1 0.1 3167 3167 1 0.1 3175 3175 1 0.1 3181 3181 1 0.1 3196 3196 1 0.1 3339 3339 1 0.1 3362 3362 ------------------------------ 1 0.1 22934 22934 1 0.1 23098 23098 1 0.1 23134 23134 1 0.1 23927 23927 1 0.1 25104 25104 1 0.1 25548 25548 1 0.1 26250 26250 1 0.1 28576 28576 26 2.1 777777 Not inspected 199 16.0 999999 Unknown LTCCS Codebook TruckExterior Data Set • 329 Codebook – TruckExterior Data Set Format Type Length Variable Name OT29F Numeric 8 CMDBCargoWeight Definition: Establishes the total weight (kilograms) of all cargo in all trailers combined. This value represents payload cargo only, not the weight of the trailer, the driver, or the driver’s personal effects. N Prcnt Code Label 1 0.1 9 9 1 0.1 14 14 2 0.2 23 23 1 0.1 34 34 5 0.4 45 45 1 0.1 68 68 1 0.1 75 75 2 0.2 91 91 3 0.2 113 113 1 0.1 136 136 ------------------------------ 1 0.1 39010 39010 1 0.1 39508 39508 1 0.1 41822 41822 1 0.1 43872 43872 1 0.1 45360 45360 1 0.1 48988 48988 1 0.1 49743 49743 1 0.1 63504 63504 26 2.1 777777 Not inspected 592 47.7 999999 Unknown Format Type Length Variable Name OT29F Numeric 8 TOTALGVWR Definition: This is the total combined gross vehicle weight rating (in kilograms) for all units of the truck configuration. The GVWR is specified by the manufacturer and represents the sum of the weights each axle within a unit is designed to carry. N Prcnt Code Label 1 0.1 4536 4536 1 0.1 5012 5012 2 0.2 5443 5443 1 0.1 5897 5897 2 0.2 6010 6010 2 0.2 6350 6350 1 0.1 6373 6373 1 0.1 6396 6396 LTCCS Codebook TruckExterior Data Set • 330 Codebook – TruckExterior Data Set N Prcnt Code Label 1 0.1 6460 6460 1 0.1 6463 6463 ------------------------------ 1 0.1 84863 84863 1 0.1 87984 87984 1 0.1 88579 88579 1 0.1 94802 94802 1 0.1 95935 95935 1 0.1 96163 96163 1 0.1 97977 97977 1 0.1 104554 104554 26 2.1 777777 Not inspected 221 17.8 999999 Unknown Variable Name Format Type Length TEXConfiguration $15 Char 15 Definition: Provides a summary of the configuration of the rig. Letter codes are “strung together” (listed from left to right) to represent the order of equipment in the rig. For example, a tractor pulling two trailers connected by an A-dolly would have a configuration of “TSAS”. N Prcnt Code Label 1 0.1 ISS ISS 22 1.8 Not Insp Not Insp 309 24.9 R R 20 1.6 RF RF 24 1.9 RO RO 1 0.1 ROO ROO 29 2.3 T T 6 0.5 TO TO 773 62.3 TS TS 1 0.1 TSA TSA 22 1.8 TSAS TSAS 2 0.2 TSCS TSCS 29 2.3 TSF TSF 2 0.2 TSXS TSXS LTCCS Codebook TruckExterior Data Set • 331 Codebook – TruckExterior Data Set Format Type Length Variable Name OT54F Numeric 8 TEXTotalLength Definition: Establishes the total length (meters) of the entire truck configuration. Due to overlapping vehicle connection points, the total length of the vehicle configuration will be less than the sum of the unit lengths. N Prcnt Code Label 1 0.1 3 3 6 0.5 5 5 33 2.7 6 6 28 2.3 7 7 77 6.2 8 8 63 5.1 9 9 64 5.2 10 10 39 3.1 11 11 27 2.2 12 12 25 2.0 13 13 17 1.4 14 14 17 1.4 15 15 22 1.8 16 16 44 3.5 17 17 79 6.4 18 18 98 7.9 19 19 110 8.9 20 20 128 10.3 21 21 133 10.7 22 22 42 3.4 23 23 19 1.5 24 24 10 0.8 25 25 3 0.2 26 26 4 0.3 27 27 1 0.1 28 28 1 0.1 29 29 2 0.2 30 30 3 0.2 32 32 1 0.1 50 50 16 1.3 77 Not inspected 128 10.3 99 Unknown LTCCS Codebook TruckExterior Data Set • 332 Codebook – TruckExterior Data Set Format Type LengthVariable Name OT47F Numeric 8 Definition: Establishes whether or not the trailer unit was placarded (i.e. had warning symbol on it), indicating the trailer was carrying hazardous cargo. PlacardRequired N Prcnt Code Label 887 71.5 0 No Placard Required 53 4.3 1 Yes, Placard Required 26 2.1 8 Not Inspected 275 22.2 9 Unknown Variable Name Format Type Length OT59F Numeric 8 MirrorCount Definition: Establishes the total number of mirrors on the truck configuration. N Prcnt Code Label 35 2.8 1 1 768 61.9 2 2 164 13.2 3 3 205 16.5 4 4 1 0.1 5 5 26 2.1 7 Not Inspected 42 3.4 9 Unknown Format Type Length Variable Name AP1U Numeric 8 RightDoorMirror Definition: Establishes whether or not the truck’s power unit has an exterior mirror mounted on its right door. (Was originally an attribute choice under the variable “Exterior Mirror Location.”) N Prcnt Code Label 53 4.3 0 Absent 1,120 90.2 1 Present 26 2.1 7 Not Inspected 42 3.4 9 Unknown LTCCS Codebook TruckExterior Data Set • 333 Codebook – TruckExterior Data Set Format Type Length Variable Name AP1U Numeric 8 LeftDoorMirror Definition: Establishes whether or not the truck’s power unit has an exterior mirror mounted on its left door. (This variable was originally an attribute choice under the variable “Exterior Mirror Location.”) N Prcnt Code Label 50 4.0 0 Absent 1,123 90.5 1 Present 26 2.1 7 Not Inspected 42 3.4 9 Unknown Variable Name Format Type Length AP1U Numeric 8 RightFenderMirror Definition: Establishes whether or not the truck’s power unit has an exterior mirror mounted on its right fender. (This variable was originally an attribute choice under the variable “Exterior Mirror Location.”) N Prcnt Code Label 817 65.8 0 Absent 356 28.7 1 Present 26 2.1 7 Not Inspected 42 3.4 9 Unknown Format Type Length Variable Name AP1U Numeric 8 LeftFenderMirror Definition: Establishes whether or not the truck’s power unit has an exterior mirror mounted on its left fender. (This variable was originally an attribute choice under the variable “Exterior Mirror Location.”) N Prcnt Code Label 947 76.3 0 Absent 226 18.2 1 Present 26 2.1 7 Not Inspected 42 3.4 9 Unknown LTCCS Codebook TruckExterior Data Set • 334 Codebook – TruckExterior Data Set Format Type Length Variable Name AP1U Numeric 8 OtherLocationMirror Definition: Establishes whether or not the truck’s power unit has an exterior mirror mounted on locations other than its doors or fenders. (This variable was originally an attribute choice under the variable “Exterior Mirror Location” and was the “Other (specify):” attribute choice.) N Prcnt Code Label 1,110 89.4 0 Absent 63 5.1 1 Present 26 2.1 7 Not Inspected 42 3.4 9 Unknown Variable Name Format Type Length OT59F Numeric 8 ITSCount Definition: Establishes the total number of ITS equipment on the truck. N Prcnt Code Label 1,065 85.8 0 0 23 1.9 1 1 1 0.1 2 2 1 0.1 3 3 26 2.1 7 Not Inspected 125 10.1 9 Unknown Variable Name Format Type Length AP1U Numeric 8 ITSHeadway Definition: Establishes whether or not a headway detection unit is installed in the cab of the vehicle and is functional. These units are intended to assist the driver in avoiding rear-end crashes. While several operational modes are in active use, all of these units measure the gap distance to a vehicle/object located forward of the driver’s position. When the gap distance diminishes to a pre-selected unacceptable level, the unit issues an auditory alert to the driver. (Was originally an attribute choice under the variable “ITS Equipment Installed.”) N Prcnt Code Label 1,088 87.7 0 Absent 2 0.2 1 Present 26 2.1 7 Not Inspected 125 10.1 9 Unknown LTCCS Codebook TruckExterior Data Set • 335 Codebook – TruckExterior Data Set Format Type Length Variable Name AP1U Numeric 8 ITSSideObject Definition: Establishes whether or not a side/object detection unit is installed in the cab of the vehicle and is functional. These units are intended to assist the driver in avoiding side impacts as a result of intruding into adjacent lanes or as a result of other vehicle’s intruding into the truck lanes. These units are also useful with respect to avoiding obstacles while backing. While several operational modes are in active use, all of these units typically issue alerts when clearances to the sides of the vehicle diminish to unacceptable levels. (This variable was originally an attribute choice under the variable “ITS Equipment Installed.”) N Prcnt Code Label 1,088 87.7 0 Absent 2 0.2 1 Present 26 2.1 7 Not Inspected 125 10.1 9 Unknown Format Type Length Variable Name AP1U Numeric 8 ITSRollover Definition: Establishes whether or not a rollover warning unit is installed in the cab of the vehicle and is functional. While several operational modes are in active use, these devices typically measure lateral acceleration and issue an alert to the driver when these forces rise to a level that may create an unstable condition. (This variable was originally an attribute choice under the variable “ITS Equipment Installed.”) N Prcnt Code Label 1,089 87.8 0 Absent 1 0.1 1 Present 26 2.1 7 Not Inspected 125 10.1 9 Unknown Format Type Length Variable Name AP1U Numeric 8 ITSOther Definition: Establishes whether or not other ITS equipment (other than headway detection units, side/object detection units, and rollover warning units) is installed in the cab of the vehicle and is functional. (This variable was originally an attribute choice under the variable “ITS Equipment Installed” and was the “Other (specify):” attribute choice.) N Prcnt Code Label 1,087 87.6 0 Absent 3 0.2 1 Present 26 2.1 7 Not Inspected 125 10.1 9 Unknown LTCCS Codebook TruckExterior Data Set • 336 Codebook – TruckInspection Data Set TruckInspection Data Set The TruckInspection data set combines information on Federal inspection violations. There may be more than one record per truck. Each record represents a violation. The TruckInspection data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID, VehicleNumber, TINPosition and TINViolationCode uniquely identify each record in this data set. CaseID and VehicleNumber should be used to merge the TruckInspection data set with the TruckExterior data set and other vehicle level data sets. CaseID, VehicleNumber and TINPosition should be used to merge the TruckInspection data set with the TruckUnits data set. Variable Name Format Type Length BEST8 Numeric 8 TINPosition Definition: Indicates which unit in the truck configuration received a specific violation, based on its position in the truck’s configuration. N Prcnt Code Label 2,497 77.0 1 1 685 21.1 2 2 59 1.8 3 3 Variable Name Format Type Length $OT48F Char 15 TINViolationCode Definition: Indicates the numerical violation code as it corresponds to a specific violation. These codes are found in the Federal Motor Carrier Safety Regulations “Code of Federal Regulations, Title 49.” N Prcnt Code Label 1 0.0 13901 Operating w/o proper motor carrier authority 1 0.0 13906 Oper w/o proper insurance or other securities 1 0.0 171.2B Failed to comply with exemption 1 0.0 172.200A No shipping paper provided offeror 1 0.0 172.332 ID# marking for (b) panel (c) placards 2 0.1 172.502A1 Prohibited placarding 1 0.0 172.516C6 Placard damaged, deteriorated, or obscured 1 0.0 172.602A ER info missing 1 0.0 173.24B1 Release of HM from package 2 0.1 177.817A No shipping papers (carrier) ------------------------------ 7 0.2 396.3A1BC Brake-air compressor violation 3 0.1 396.3A1BD Brake-defective brake drum 6 0.2 396.3A1BL Brake-reserve system pressure loss 13 0.4 396.3A1T Tires (general) 12 0.4 396.5 Excessive oil leaks 15 0.5 396.5B Oil and/or grease leak LTCCS Codebook TruckInspection Data Set • 337 Codebook – TruckInspection Data Set N Prcnt Code Label 6 0.2 396.7 Unsafe operations forbidden 1 0.0 396.9D2 Failure to correct defects noted on insp 1 0.0 398.6 Violation of hours of service reg-migrant 2 0.1 399.207 Vehicle access requirements violations Variable Name Format Type Length ML618F Numeric 8 ViolationType Definition: Indicates if a violation was in effect prior to the crash, or if the violation was a result of the crash. N Prcnt Code Label 2,195 67.7 1 Pre-crash 112 3.5 2 No 856 26.4 3 Crash Related 78 2.4 999 Unknown Variable Name Format Type Length ML617F Numeric 8 TINOutOfService Definition: Indicates whether or not a specific violation was classified as “out-of-service.” N Prcnt Code Label 1,088 33.6 1 Yes 2,150 66.3 2 No 3 0.1 9 Unknown Variable Name Format Type Length ML640F Numeric 8 TINDisposition Definition: Establishes the disposition of the truck as indicated by violations found during the FMCSA truck inspection. N Prcnt Code Label 87 2.7 1 Repaired at Scene 1,996 61.6 2 Towed/Escorted 142 4.4 3 Other (Specify) 787 24.3 8 Not Applicable 229 7.1 9 Unknown LTCCS Codebook TruckInspection Data Set • 338 Codebook – TruckUnits Data Set TruckUnits Data Set The TruckUnits data set contains detailed information about each unit involved in the crash. This includes both power units and trailers, where applicable, as indicated by the position field, which is part of the key of this data set. This material is provided as one record per truck unit. The TruckUnits data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID, VehicleNumber and TUNPosition uniquely identify each record in this data set. CaseID and VehicleNumber should be used to merge the TruckUnits data set with the TruckExterior data set and other vehicle level data sets. CaseID, VehicleNumber and TUNPosition should be used to merge the TruckUnits data set with the TruckInspection data set. Variable Name Format Type Length BEST8 Numeric 8 TUNPosition Definition: Identifies the position of a particular unit within the vehicle configuration. Position “1” should identify a straight truck or a power unit in a multiple combination, with each trailer then assigned the next number as it moves away from the power unit. N Prcnt Code Label 1,241 57.0 1 1 881 40.4 2 2 57 2.6 3 3 Format Type Length Variable Name ML639F Numeric 8 TUNUnitType Definition: Describes the unit type for each unit in the vehicle configuration. N Prcnt Code Label 859 39.4 1 Semi 49 2.2 2 Full 1,220 56.0 3 Power unit 22 1.0 6 Not Inspected 28 1.3 8 Other (specify) 1 0.0 9 Unknown Variable Name Format Type Length ML620F Numeric 8 TUNBodyType Definition: Establishes the type of trailer unit/cargo body identified within the vehicle configuration. If the vehicle is a straight truck, this designation is also used to describe the body type of the straight truck (e.g. cement mixer). N Prcnt Code Label 451 20.7 1 Van 33 1.5 2 Open top van 123 5.6 3 Refrigerated van LTCCS Codebook TruckUnits Data Set • 339 Codebook – TruckUnits Data Set N Prcnt Code Label 5 0.2 4 Livestock carrier 163 7.5 5 Flatbed 14 0.6 6 Low boy 14 0.6 7 Flatbed with equipment 23 1.1 8 Flatbed with sides 14 0.6 9 Pole/logging 68 3.1 10 Tank-liquid 1 0.0 11 Tank-compressed gas 20 0.9 12 Tank-dry bulk 8 0.4 13 Auto carrier 199 9.1 14 Dump 28 1.3 15 Bottom dump/hopper bottom 45 2.1 16 Garbage/refuse 24 1.1 17 Cement mixer 63 2.9 18 Other (specify) 855 39.2 77 Not applicable (includes tractor power unit) 22 1.0 88 Not Inspected 6 0.3 99 Unknown Format Type Length Variable Name ML623F Numeric 8 CargoType Definition: Establishes the type of cargo carried in each unit of the vehicle configuration. A tractor power unit is normally classified with the “Not applicable” designation since these units typically do not carry cargo. For the unusual circumstance where a tractor power unit is carrying cargo, either the “Tractor power unit with container cargo” or “Tractor power unit with other bulk cargo (specify):” designations are used as appropriate. N Prcnt Code Label 351 16.1 0 Empty 293 13.4 1 General freight 22 1.0 2 Household goods 63 2.9 3 Building materials 41 1.9 4 Metal (coil, sheets) 21 1.0 5 Heavy machinery 29 1.3 6 Large objects 10 0.5 7 Motor vehicles 3 0.1 8 Piggyback/tow-away 6 0.3 9 Gases in bulk 235 10.8 10 Solids in bulk 49 2.2 11 Liquids in bulk 15 0.7 13 Logs, poles, lumber 74 3.4 14 Refrigerated foods LTCCS Codebook TruckUnits Data Set • 340 Codebook – TruckUnits Data Set N Prcnt Code Label 4 0.2 15 Mobile home 32 1.5 16 Farm products 6 0.3 17 Live animals 7 0.3 18 Other (specify): 862 39.6 77 Not applicable 26 1.2 88 Not Inspected 30 1.4 99 Unknown Variable Name Format Type Length TUNVIN $10 Char 10 Definition: Establishes the Vehicle Identification Number (VIN) for each unit in the vehicle configuration. N Prcnt Code Label 1 0.0 * 0016 1 0.0 * 0125A 1 0.0 * 0M17609C 1 0.0 * 0T3A110004 1 0.0 * 0T3A113004 1 0.0 * 102955 1 0.0 * 107294N 1 0.0 * 10BBA72Y4Y 1 0.0 * 10BFB72T8X 1 0.0 * 10BFS6210D ------------------------------ 1 0.0 * UNV623301 1 0.0 * Unknown 1 0.0 * V30363 1 0.0 * VG6BA01A4J 1 0.0 * VG6M114B7G 1 0.0 * VG6M116A9Y 1 0.0 * WA89149779 1 0.0 * WA94182673 1 0.0 * WN63222274 1 0.0 * X127269 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. LTCCS Codebook TruckUnits Data Set • 341 Codebook – TruckUnits Data Set Format Type Length Variable Name $OT50F Char 8 ManufactureDate Definition: Establishes the month and year in which each unit in the vehicle configuration was manufactured. N Prcnt Code Label 14 0.6 * 01/00 6 0.3 * 01/01 9 0.4 * 01/02 5 0.2 * 01/03 1 0.0 * 01/60 1 0.0 * 01/74 1 0.0 * 01/75 1 0.0 * 01/76 1 0.0 * 01/77 2 0.1 * 01/79 ------------------------------ 4 0.2 * 12/92 3 0.1 * 12/93 4 0.2 * 12/94 8 0.4 * 12/95 8 0.4 * 12/96 10 0.5 * 12/97 12 0.6 * 12/98 12 0.6 * 12/99 26 1.2 88/88 Not Inspected 819 37.6 99/99 Unknown Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name OT29F Numeric 8 TUNEmptyWeight Definition: Establishes the empty weight (kilograms) for each unit of the vehicle configuration. This value represents the empty weight of each unit as specified by the unit’s manufacturer. N Prcnt Code Label 4 0.2 2200 2200 1 0.0 2404 2404 1 0.0 2420 2420 1 0.0 2422 2422 1 0.0 2495 2495 1 0.0 2558 2558 1 0.0 2563 2563 1 0.0 2586 2586 LTCCS Codebook TruckUnits Data Set • 342 Codebook – TruckUnits Data Set N Prcnt Code Label 9 0.4 2722 2722 1 0.0 2735 2735 ------------------------------ 1 0.0 17350 17350 1 0.0 17950 17950 1 0.0 18280 18280 1 0.0 18281 18281 1 0.0 18300 18300 1 0.0 19573 19573 1 0.0 19913 19913 1 0.0 28576 28576 27 1.2 888888 Not inspected 264 12.1 999999 Unknown Variable Name Format Type Length TUNCargoWeight OT29F Numeric 8 Definition: Establishes the weight (kilograms) of the cargo transported in each unit of the vehicle configuration. This value represents the payload associated with each unit of the vehicle combination. Payload is the total weight of the unit and cargo minus the weight of the unit before the cargo is loaded. Payload does not include miscellaneous items in the cab or dromedary box of power units or other items such as chains and tie downs. N Prcnt Code Label 343 15.7 0 0 1 0.0 9 9 1 0.0 14 14 2 0.1 23 23 1 0.0 34 34 7 0.3 45 45 2 0.1 68 68 1 0.0 75 75 2 0.1 91 91 2 0.1 113 113 ------------------------------ 1 0.0 35127 35127 2 0.1 35381 35381 1 0.0 35834 35834 1 0.0 36764 36764 1 0.0 39009 39009 1 0.0 39508 39508 1 0.0 41822 41822 856 39.3 888887 Not applicable LTCCS Codebook TruckUnits Data Set • 343 Codebook – TruckUnits Data Set N Prcnt Code Label 26 1.2 888888 Not inspected 283 13.0 999999 Unknown Variable Name Format Type Length OT29F Numeric 8 GVWR Definition: Establishes the Gross Vehicle Weight Rating (GVWR, in kilograms) for each unit of the vehicle configuration. The GVWR is specified by the manufacturer and represents the sum of the weights each axle within a unit is designed to carry. N Prcnt Code Label 2 0.1 4536 4536 1 0.0 5012 5012 1 0.0 5216 5216 1 0.0 5307 5307 1 0.0 5440 5440 2 0.1 5443 5443 1 0.0 5489 5489 2 0.1 5897 5897 2 0.1 6010 6010 1 0.0 6123 6123 ------------------------------ 1 0.0 49360 49360 1 0.0 50349 50349 1 0.0 50803 50803 1 0.0 53071 53071 1 0.0 53524 53524 1 0.0 54885 54885 1 0.0 54890 54890 1 0.0 59213 59213 26 1.2 888888 Not inspected 284 13.0 999999 Unknown Variable Name Format Type Length OT28F14.1 Numeric 8 TUNTotalLength Definition: Establishes the length (in meters) of each unit of the vehicle’s configuration. Unit lengths are established by measuring from the furthest forward projection to the furthest rearward projection. N Prcnt Code Label 1 0.0 3.9 3.9 1 0.0 4.1 4.1 1 0.0 4.3 4.3 1 0.0 4.5 4.5 LTCCS Codebook TruckUnits Data Set • 344 Codebook – TruckUnits Data Set N Prcnt Code Label 5 0.2 4.6 4.6 3 0.1 4.7 4.7 5 0.2 4.8 4.8 1 0.0 4.9 4.9 7 0.3 5 5.0 3 0.1 5.2 5.2 ------------------------------ 1 0.0 19.1 19.1 1 0.0 19.7 19.7 3 0.1 20.7 20.7 1 0.0 20.8 20.8 1 0.0 22.9 22.9 1 0.0 23.6 23.6 1 0.0 24.3 24.3 1 0.0 26 26.0 27 1.2 7777 Not Inspected 146 6.7 9999 Unknown Variable Name Format Type Length CapacityPercent OT36F Numeric 8 Definition: Establishes the proportion of available cargo space that is used to transport cargo in each unit of the vehicle configuration. The reported percentages are subjective estimates of the total available space that is used. N Prcnt Code Label 352 16.2 0 0 11 0.5 1 1 1 0.0 2 2 1 0.0 4 4 14 0.6 5 5 1 0.0 8 8 20 0.9 10 10 1 0.0 11 11 1 0.0 12 12 7 0.3 15 15 ------------------------------- 3 0.1 93 93 2 0.1 94 94 18 0.8 95 95 67 3.1 96 96 6 0.3 97 97 8 0.4 98 98 LTCCS Codebook TruckUnits Data Set • 345 Codebook – TruckUnits Data Set N Prcnt Code Label 3 0.1 99 99 290 13.3 100 100 26 1.2 777 Not Inspected 862 39.6 888 Not applicable 174 8.0 999 Unknown Format Type Length Variable Name OT38F Numeric 8 TankCapacity Definition: Is used with tankers (liquid loads) and establishes the total capacity (liters) of that particular tank. N Prcnt Code Label 1 0.0 3407 3407 1 0.0 5678 5678 1 0.0 5700 5700 1 0.0 10409 10409 2 0.1 13248 13248 1 0.0 13626 13626 1 0.0 17396 17396 1 0.0 17411 17411 1 0.0 20276 20276 1 0.0 20439 20439 1 0.0 20441 20441 1 0.0 24224 24224 1 0.0 24603 24603 1 0.0 24605 24605 1 0.0 25360 25360 1 0.0 25738 25738 3 0.1 26495 26495 1 0.0 28766 28766 1 0.0 33600 33600 2 0.1 34065 34065 1 0.0 35201 35201 1 0.0 35390 35390 1 0.0 35579 35579 5 0.2 35958 35958 1 0.0 38986 38986 1 0.0 42771 42771 2,104 96.6 88887 Not Applicable 26 1.2 88888 Not Inspected 15 0.7 99999 Unknown LTCCS Codebook TruckUnits Data Set • 346 Codebook – TruckUnits Data Set Format Type Length Variable Name OT38F Numeric 8 TankLoad Definition: Is used with tankers (liquid load) and establishes the total load (liters) being carried in that particular tank at the time of the crash. N Prcnt Code Label 1 0.0 1893 1893 1 0.0 4020 4020 1 0.0 5616 5616 1 0.0 5678 5678 1 0.0 7040 7040 1 0.0 8327 8327 1 0.0 8531 8531 1 0.0 10542 10542 1 0.0 13248 13248 1 0.0 13418 13418 1 0.0 15899 15899 1 0.0 16166 16166 1 0.0 17396 17396 1 0.0 19069 19069 1 0.0 20201 20201 1 0.0 20363 20363 1 0.0 21386 21386 1 0.0 21790 21790 1 0.0 24118 24118 1 0.0 24160 24160 1 0.0 29145 29145 1 0.0 30280 30280 1 0.0 30659 30659 1 0.0 31045 31045 1 0.0 31416 31416 1 0.0 32173 32173 1 0.0 33301 33301 1 0.0 33308 33308 1 0.0 33664 33664 1 0.0 33762 33762 2 0.1 34065 34065 1 0.0 37850 37850 1 0.0 49205 49205 2,105 96.6 88887 Not Applicable 26 1.2 88888 Not Inspected 14 0.6 99999 Unknown LTCCS Codebook TruckUnits Data Set • 347 Codebook – TruckUnits Data Set Format Type Length Variable Name ML627F Numeric 8 Hazard Definition: Establishes the presence of hazardous cargo in each unit of the vehicle configuration. A cargo is hazardous if it is corrosive, explosive, flammable, or radioactive. This includes all petroleum products except motor oil in cans and finished plastics. If the cargo was required by law to be placarded (i.e. warning symbol), it should be classified as hazardous. N Prcnt Code Label 52 2.4 1 Yes 1,226 56.3 2 No 867 39.8 7 Not applicable 24 1.1 8 Not Inspected 10 0.5 9 Unknown Variable Name Format Type Length ML622F Numeric 8 TUNSpillage Definition: Establishes the occurrence of cargo spillage during the crash sequence. To qualify, the cargo spillage must occur as a result of or following the first harmful event. Spillage of fuel from the involved vehicles and the scattering of debris from the crash are not considered cargo spillage. Similarly, cargo spillage that occurs prior to the first harmful event (i.e. pre-crash phase) is not considered applicable to this variable. N Prcnt Code Label 1,057 48.5 0 No spillage 205 9.4 1 Non-hazardous spillage 18 0.8 2 Hazardous spillage 867 39.8 7 Not applicable 24 1.1 8 Not Inspected 8 0.4 9 Unknown Format Type Length Variable Name OT53F Numeric 8 AxlesUsed Definition: Establishes the number of axles in use for each unit of the vehicle configuration. This number does not include lift axles that are up and therefore, not in use at the time of the crash. N Prcnt Code Label 73 3.4 1 1 1,032 47.4 2 2 974 44.7 3 3 53 2.4 4 4 6 0.3 5 5 6 0.3 6 6 25 1.1 7 Not Inspected 10 0.5 9 Unknown LTCCS Codebook TruckUnits Data Set • 348 Codebook – TruckUnits Data Set Variable Name Format Type Length OT36F Numeric 8 AxlesNotUsed Definition: Establishes the number of axles that were lifted and not in use at the time of the crash. The number of lift axles is reported for each unit of the vehicle configuration. N Prcnt Code Label 1,928 88.5 0 0 84 3.9 1 1 4 0.2 2 2 1 0.0 3 3 26 1.2 777 Not Inspected 123 5.6 888 Not applicable 13 0.6 999 Unknown Variable Name Format Type Length OT36F Numeric 8 SteerableAxles Definition: Establishes the number of steer axles (including self-aligning steer axles) on each unit within the configuration. For most articulated vehicles on U.S. trafficways, there will typically be one steer axle within the configuration (i.e. the front steer axle of the tractor unit). Within those configurations that utilize a C-dolly however, there can be self-aligning axles on the C-dolly. N Prcnt Code Label 832 38.2 0 0 1,259 57.8 1 1 11 0.5 2 2 25 1.1 777 Not Inspected 45 2.1 888 Not applicable 7 0.3 999 Unknown Variable Name Format Type Length ML632F Numeric 8 RearTapeCond Definition: Establishes the condition of the tape on the rear of each trailer/cargo body. For this variable, tape condition factors are limited to visibility issues (e.g. clean/dirty). N Prcnt Code Label 333 15.3 0 No tape 372 17.1 1 Clean 390 17.9 2 Some dirt 106 4.9 3 Very dirty 862 39.6 7 Not applicable 25 1.1 8 Not Inspected 91 4.2 9 Unknown LTCCS Codebook TruckUnits Data Set • 349 Codebook – TruckUnits Data Set Variable Name Format Type Length ML633F Numeric 8 SideTapeCond Definition: Establishes the condition of the tape on the sides of each trailer/cargo body. For this variable, tape condition factors are limited to visibility issues (e.g. clean/dirty). N Prcnt Code Label 327 15.0 0 No tape 441 20.2 1 Clean 379 17.4 2 Some dirt 60 2.8 3 Very dirty 862 39.6 7 Not applicable 25 1.1 8 Not Inspected 85 3.9 9 Unknown Variable Name Format Type Length ML638F Numeric 8 ReflectTapeType Definition: Establishes the use/presence of retroflective tape to improve truck conspicuity. It should be noted that the first unit in the vehicle configuration for this variable is designated as the power unit cargo body. This designation refers to the cargo body of a straight truck. If the power unit is a tractor, the “Not applicable” designation would typically be used. N Prcnt Code Label 286 13.1 0 No 933 42.8 1 Yes 862 39.6 7 Not applicable 25 1.1 8 Not Inspected 73 3.4 9 Unknown Variable Name Format Type Length ML634F Numeric 8 ReflectTapePattern Definition: Establishes the pattern of tape markings that are present. N Prcnt Code Label 286 13.1 0 No tape 900 41.3 1 Side/rear per FMVSS 108 or similar 24 1.1 6 Not Inspected 862 39.6 7 Not applicable 32 1.5 8 Other pattern (specify): 75 3.4 9 Unknown LTCCS Codebook TruckUnits Data Set • 350 Codebook – TruckUnits Data Set Format Type Length Variable Name ML631F Numeric 8 ReflectTapeColor Definition: Establishes the color of tape markings that are present. N Prcnt Code Label 286 13.1 0 No tape 930 42.7 1 Red/white per FMVSS 108 25 1.1 6 Not Inspected 862 39.6 7 Not applicable 1 0.0 8 Other color (specify): 75 3.4 9 Unknown Format Type Length Variable Name OT36F Numeric 8 UnderrideTapePeel Definition: Establishes the proportion of tape on the rear underride guard that is peeling or damaged. N Prcnt Code Label 468 21.5 0 0 3 0.1 1 1 12 0.6 2 2 2 0.1 3 3 1 0.0 4 4 67 3.1 5 5 41 1.9 10 10 5 0.2 15 15 23 1.1 20 20 12 0.6 25 25 ------------------------------- 5 0.2 76 76 2 0.1 80 80 4 0.2 90 90 3 0.1 95 95 1 0.0 97 97 2 0.1 99 99 10 0.5 100 100 480 22.0 666 No tape 25 1.1 777 Not Inspected 862 39.6 888 Not applicable 103 4.7 999 Unknown LTCCS Codebook TruckUnits Data Set • 351 Codebook – TruckUnits Data Set Format Type Length Variable Name OT36F Numeric 8 RearTapePeel Definition: Establishes the proportion of the tape on the rear area of each unit (excluding the underride guard) that is peeling or damaged. N Prcnt Code Label 642 29.5 0 0 2 0.1 1 1 15 0.7 2 2 2 0.1 3 3 2 0.1 4 4 69 3.2 5 5 43 2.0 10 10 2 0.1 15 15 1 0.0 17 17 14 0.6 20 20 ------------------------------- 2 0.1 75 75 2 0.1 76 76 5 0.2 80 80 3 0.1 90 90 1 0.0 95 95 4 0.2 100 100 334 15.3 666 No tape 25 1.1 777 Not Inspected 862 39.6 888 Not applicable 96 4.4 999 Unknown Variable Name Format Type Length OT36F Numeric 8 SideTapePeel Definition: Establishes the proportion of the tape on the sides of the trailer that is peeling or damaged. N Prcnt Code Label 686 31.5 0 0 1 0.0 1 1 15 0.7 2 2 2 0.1 3 3 65 3.0 5 5 53 2.4 10 10 2 0.1 15 15 15 0.7 20 20 9 0.4 25 25 9 0.4 30 30 LTCCS Codebook TruckUnits Data Set • 352 Codebook – TruckUnits Data Set N Prcnt Code Label 1 0.0 35 35 3 0.1 40 40 4 0.2 50 50 2 0.1 60 60 1 0.0 66 66 1 0.0 75 75 4 0.2 76 76 2 0.1 80 80 3 0.1 90 90 3 0.1 100 100 316 14.5 666 No tape 25 1.1 777 Not Inspected 862 39.6 888 Not applicable 95 4.4 999 Unknown LTCCS Codebook TruckUnits Data Set • 353 Codebook – VehicleEvents Data Set VehicleEvents Data Set The VehicleEvents data set contains information about events, such as safety equipment deployment and fires that occurred during and immediately after the crash. One record exists for each vehicle. The VehicleEvents data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the VehicleEvents data set with other vehicle level data sets. Format Type Length Variable Name ML118F Numeric 8 FireOrigin Definition: Identifies the location of fire initiation. N Prcnt Code Label 5 0.2 1 Vehicle exterior (front, side, back, top) 1 0.0 2 Exhaust System 23 1.0 3 Fuel tank (and other fuel retention system parts) 22 1.0 4 Engine compartment 8 0.4 5 Cargo/Truck compartment 4 0.2 8 Other location (specify) 2,218 97.1 88 No fire 3 0.1 99 Unknown Variable Name Format Type Length ML117F Numeric 8 FireSeverity Definition: Documents the degree of fire involvement. N Prcnt Code Label 19 0.8 1 Minor Fire 47 2.1 2 Major Fire 2,218 97.1 88 No fire Format Type Length Variable Name ML202F Numeric 8 RolloverType Definition: Describes the type of rollover event that occurred for this vehicle. Rollover is defined as any vehicle rotation of 90 degrees or more about any true longitudinal or lateral axis. Rollover can occur at any time during the collision and is coded independently of other configuration questions. N Prcnt Code Label 1,971 86.3 0 No rollover (no overturning) 309 13.5 1 Longitudinal axis 1 0.0 98 Rollover, end-over-end (i.e. primarily about the lateral axis) 3 0.1 99 Rollover (overturn), details unknown LTCCS Codebook VehicleEvents Data Set • 354 Codebook – VehicleEvents Data Set Format Type Length Variable Name OT46F Numeric 8 QuarterTurns Definition: Documents the number of quarter turns that the vehicle rolled during the crash sequence. A quarter turn is defined as a rotation of 90 degrees about the longitudinal axis of the vehicle; this does not include rotation about the vertical axis, commonly called yaw. N Prcnt Code Label 1,971 86.3 0 0 221 9.7 1 1 29 1.3 2 2 20 0.9 3 3 15 0.7 4 4 1 0.0 5 5 4 0.2 6 6 3 0.1 8 8 1 0.0 9 9 19 0.8 99 Unknown Format Type Length Variable Name ML201F Numeric 8 RollInitType Definition: Describes the type of rollover event in terms of how the rollover was inititated. The attributes are used for rollovers initiated about the longitudinal axis. N Prcnt Code Label 1,971 86.3 0 No rollover 72 3.2 1 Trip-over 3 0.1 2 Flip-over 119 5.2 3 Turn-over (specify) 17 0.7 4 Climb-over 26 1.1 5 Fall-over 17 0.7 6 Bounce-over 46 2.0 7 Collision with another vehicle 8 0.4 8 Other rollover initiation type (specify) 1 0.0 98 Rollover-end-over-end 4 0.2 99 Unknown rollover initiation type LTCCS Codebook VehicleEvents Data Set • 355 Codebook – VehicleEvents Data Set Format Type Length Variable Name ML198F Numeric 8 RollInitLocation Definition: Establishes the location of the trip point or start of the vehicle’s roll that was identified in the variable “Rollover Initiation Type.” N Prcnt Code Label 1,971 86.3 0 No rollover 157 6.9 1 On roadway 19 0.8 2 On shoulder -paved 9 0.4 3 On shoulder -unpaved 123 5.4 4 On roadside or divided trafficway median 1 0.0 8 Rollover -end-over-end 4 0.2 9 Unknown Format Type Length Variable Name ML1205F Numeric 8 RollObject Definition: Is related to the variable “Rollover Initiation Type,” and identifies the source of the force that acted upon the vehicle, which resulted in the rollover. N Prcnt Code Label 1,971 86.3 0 No rollover 20 0.9 1 Vehicle#1 19 0.8 2 Vehicle#2 4 0.2 3 Vehicle#3 2 0.1 4 Vehicle#4 1 0.0 5 Vehicle#5 145 6.3 31 Overturn->rollover(excludes end-over-end) 1 0.0 32 Rollover->end-over-end 2 0.1 34 Jackknife 1 0.0 41 Tree(<= 10 cm in diameter) 1 0.0 42 Tree(> 10 cm in diameter) 1 0.0 44 Embankment 1 0.0 51 Nonbreakaway pole or post(>10 cm but <= 30 cm in diameter) 27 1.2 54 Concrete traffic barrier 5 0.2 56 Other traffic barrier(includes guardrail) (specify) 1 0.0 58 Wall 59 2.6 61 Ground 9 0.4 63 Curb 1 0.0 64 Bridge 3 0.1 68 Other fixed object (specify) 1 0.0 88 Other nonfixed object (specify) LTCCS Codebook VehicleEvents Data Set • 356 Codebook – VehicleEvents Data Set N Prcnt Code Label 4 0.2 98 Other event (specify) 5 0.2 99 Unknown event or object Variable Name Format Type Length ML200F Numeric 8 RollTrip Definition: Establishes the specific point on the vehicle where the tripping force was applied. N Prcnt Code Label 1,971 86.3 0 No rollover 73 3.2 1 Wheels/tires 35 1.5 2 Side plane 32 1.4 3 End plane 20 0.9 4 Undercarriage 1 0.0 5 Other location on vehicle (specify) 146 6.4 6 Non-contact rollover forces (specify) 1 0.0 8 Rollover -end-over-end 5 0.2 9 Unknown Format Type Length Variable Name ML197F Numeric 8 RollDirect Definition: Establishes the direction in which the vehicle initially rolled. N Prcnt Code Label 1,971 86.3 0 No rollover 149 6.5 1 Roll right -primarily about the longitudinal axis 157 6.9 2 Roll left -primarily about the longitudinal axis 1 0.0 8 Rollover -end-over-end 6 0.3 9 Unknown roll direction Format Type Length Variable Name ML1389F Numeric 8 CollisionManner Definition: Is intended to describe the primary impact (in terms of delta V) sustained by this vehicle during the collision sequence. The primary impact may not be the first impact sustained by this vehicle. N Prcnt Code Label 386 16.9 0 Not a collision with a motor-vehicle in transit 724 31.7 1 Rear-end 142 6.2 2 Head-on 2 0.1 3 Rear-to-rear 805 35.2 4 Angle LTCCS Codebook VehicleEvents Data Set • 357 Codebook – VehicleEvents Data Set N Prcnt Code Label 130 5.7 5 Sideswipe -same direction 36 1.6 6 Sideswipe -opposite direction 25 1.1 8 Other (specify) 34 1.5 9 Unknown Variable Name Format Type Length ML1391F Numeric 8 FirstHarmfulEvent Definition: Establishes the first property or injury-producing event that can be determined to have occurred during the crash sequence. N Prcnt Code Label 136 6.0 1 Overturn 1 0.0 2 Fire/explosion 4 0.2 5 Fell from vehicle 2 0.1 6 Injured in vehicle 36 1.6 7 Other non-collision 28 1.2 8 Pedestrian 8 0.4 9 Pedal cycle 7 0.3 10 Railway train 1 0.0 11 Animal 1,820 79.7 12 Motor vehicle in transport 26 1.1 13 Motor vehicle in transport in other roadway 20 0.9 14 Parked motor vehicle 19 0.8 16 Thrown or falling object 31 1.4 18 Other object (not fixed) 2 0.1 19 Building 3 0.1 20 Impact attenuator/crash cushion 6 0.3 21 Bridge pier or abutment 6 0.3 23 Bridge rail 36 1.6 24 Guardrail 39 1.7 25 Concrete traffic barrier 1 0.0 26 Other longitudinal barrier 5 0.2 27 Highway/traffic sign post 4 0.2 29 Luminaire/light support 2 0.1 30 Utility pole 5 0.2 31 Other post, pole or support 1 0.0 32 Culvert 5 0.2 33 Curb 1 0.0 34 Ditch 7 0.3 35 Embankment -earth 1 0.0 36 Embankment -rock, stone or concrete 2 0.1 38 Fence LTCCS Codebook VehicleEvents Data Set • 358 Codebook – VehicleEvents Data Set N Prcnt Code Label 1 0.0 39 Wall 2 0.1 41 Shrubbery 9 0.4 42 Tree 2 0.1 43 Other fixed object 1 0.0 46 Traffic signal support 4 0.2 99 Unknown LTCCS Codebook VehicleEvents Data Set • 359 Codebook – VehicleExterior Data Set VehicleExterior Data Set The VehicleExterior data set contains information on each passenger vehicle in the crash. Trucks are not included in this data set but instead are covered under TruckExterior. This material is provided as one record for each passenger vehicle involved in the crash. The VehicleExterior data set contains the variables CaseID, PSU, PSUStrat, RATWeight, and VehicleNumber. CaseID and VehicleNumber uniquely identify each record in this data set and should be used to merge the VehicleExterior data set with other vehicle level data sets. Format Type Length Variable Name ML280F Numeric 8 BodyCategory Definition: Describes the vehicle’s general body category. N Prcnt Code Label 551 59.8 1 Automobiles 118 12.8 3 Utility Vehicles (<= 4,536 kgs GVWR) 98 10.6 4 Van Based Light Trucks (<= 4,536 kgs GVWR) 147 16.0 5 Light Conventional Trucks (Pickup style cab,<=4,536kgs GVWR) 7 0.8 6 Other Light Trucks (<= 4,536 kgs GVWR) Format Type Length Variable Name ML281F Numeric 8 VEXBodyType Definition: Documents the body type of the vehicle, as identified by the manufacturer. N Prcnt Code Label 14 1.5 1 Convertible 110 11.9 2 2-door sedan, hardtop, coupe 35 3.8 3 3-door/2-door hatchback 366 39.7 4 4-door sedan, hardtop 10 1.1 5 5-door/4-door hatchback 14 1.5 6 Station Wagon 98 10.6 14 Compact utility 15 1.6 15 Large utility 5 0.5 16 Utility station wagon 2 0.2 17 3-door coupe 62 6.7 20 Minivan 34 3.7 21 Large van 2 0.2 28 Other van type 60 6.5 30 Compact pickup 85 9.2 31 Large pickup 1 0.1 32 Pickup with slide-in camper 1 0.1 39 Unknown pickup style light conventional truck type 7 0.8 40 Cab chassis based LTCCS Codebook VehicleExterior Data Set • 360 Codebook – VehicleExterior Data Set Format Type Length Variable Name ML31F Numeric 8 VEXVehicleClass Definition: Documents the class of vehicle, as determined by the researcher. This classification system is based on documentation provided by the Passenger Car Classification Committee A3B11(1) of the Transportation Research Board, Traffic Records and Accident Analysis Committee, A3B11. This classification is based on the size of the vehicle’s wheelbase. N Prcnt Code Label 117 12.7 1 Subcompact/mini (wheelbase < 254 cm) 184 20.0 2 Compact (wheelbase >= 254 but < 265 cm) 173 18.8 3 Intermediate (wheelbase >= 265 but < 278 cm) 51 5.5 4 Full Size (wheelbase >= 278 but < 291 cm) 26 2.8 5 Largest (wheelbase >= 291 cm) 98 10.6 14 Compact utility vehicle 15 1.6 15 Large utility vehicle ( <= 4,536 kgs GVWR) 5 0.5 16 Utility station wagon ( <= 4,536 kgs GVWR) 62 6.7 20 Minivan ( <= 4,536 kgs GVWR) 34 3.7 21 Large van ( <= 4,536 kgs GVWR) 2 0.2 28 Other van type ( <= 4,536 kgs GVWR) 60 6.5 30 Compact pickup truck ( <= 4,536 kgs GVWR) 85 9.2 31 Large pickup truck ( <= 4,536 kgs GVWR) 1 0.1 38 Other pickup truck type ( <= 4,536 kgs GVWR) 1 0.1 39 Unknown pick up truck (<=4,536 kgs GVWR) 7 0.8 45 Other light truck ( <= 4,536 kgs GVWR) Variable Name Format Type Length ML282F Numeric 8 VEXWeightSource Definition: Identifies the source from which the curb weight of the vehicle was obtained. N Prcnt Code Label 7 0.8 0 Curb weight unknown 26 2.8 1 AAMA 517 56.1 2 Automotive News 189 20.5 3 Branham Automobile Reference Book 133 14.4 4 Gasoline Truck, Import Truck, and Diesel Truck Index 44 4.8 8 Other (specify) 5 0.5 99 Unknown curb weight source LTCCS Codebook VehicleExterior Data Set • 361 Codebook – VehicleExterior Data Set Format Type Length Variable Name OT29F Numeric 8 VEXCargoWeight Definition: Documents the weight (in kilograms) of any cargo inside the vehicle at the time of the crash and most often represents a researcher’s “best guess” estimate of the cargo weight in kilograms. This value is based on interview information, the PAR, and vehicle inspection. N Prcnt Code Label 573 62.2 0 0 5 0.5 1 1 6 0.7 2 2 1 0.1 3 3 39 4.2 5 5 9 1.0 7 7 24 2.6 9 9 3 0.3 10 10 16 1.7 11 11 ------------------------------ 2 0.2 680 680 1 0.1 701 701 2 0.2 907 907 1 0.1 1133 1133 4 0.4 1134 1134 1 0.1 1361 1361 2 0.2 1814 1814 1 0.1 2313 2313 1 0.1 3039 3039 60 6.5 999999 Unknown Format Type Length Variable Name ML283F Numeric 8 VEXCargoSource Definition: Documents the source from which the estimate of the weight of the cargo inside the vehicle at the time of the crash was obtained. N Prcnt Code Label 60 6.5 0 Cargo weight unknown 789 85.7 1 Vehicle inspection 63 6.8 2 Interview 1 0.1 4 Tow Yard Operator 8 0.9 8 Other (specify) LTCCS Codebook VehicleExterior Data Set • 362 Codebook – VehicleExterior Data Set Format Type Length Variable Name $10 Char 10 VEXVIN Definition: Documents the Vehicle Identification Number (VIN) of the vehicle, as determined by the researcher from vehicle inspection. N Prcnt Code Label 1 0.1 * 1582028838 1 0.1 * 19UUA566X1 1 0.1 * 1B3BA56J0K 1 0.1 * 1B3BD36D2G 1 0.1 * 1B3BE46D9F 1 0.1 * 1B3BE46K8H 1 0.1 * 1B3BX68E6H 1 0.1 * 1B3BZ48C4G 1 0.1 * 1B3EJ46X4X 1 0.1 * 1B3EJ46X5S ------------------------------ 1 0.1 * WVWCA0156G 1 0.1 * WVWRB11G3K 1 0.1 * YS3CN65M6R 1 0.1 * YS3DD58B3V 1 0.1 * YV1AX8842G 1 0.1 * YV1FX8845K 1 0.1 * YV1GA8746L 1 0.1 * YV1LS5574W 1 0.1 * YV1LS5826V 1 0.1 * YV1LZ5648W Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name ML1326F Numeric 8 VEXSpecialUse Definition: Documents specific other uses for the vehicle in addition to personal use. N Prcnt Code Label 908 98.6 0 No Special Use 4 0.4 1 Taxi 1 0.1 2 Vehicle used as a school bus 5 0.5 5 Police 2 0.2 6 Ambulance 1 0.1 9 Unknown LTCCS Codebook VehicleExterior Data Set • 363 Codebook – VehicleExterior Data Set Format Type LengthVariable Name ML536F Numeric 8 Definition: Determines whether or not the vehicle was in transport at the time of the crash. To be considered “in transport,” a vehicle must be on the roadway or in motion within the trafficway. InTransport N Prcnt Code Label 4 0.4 0 No 917 99.6 1 Yes Variable Name Format Type Length ML177F Numeric 8 InspectionType Definition: Documents the type of inspection performed on the vehicle by the researcher. It allows users to identify cases with complete documentation of required damage data (exterior and interior). N Prcnt Code Label 2 0.2 1 Vehicle fully repaired -no damage evident 373 40.5 2 Partial inspection (specify) 546 59.3 3 Complete Inspection Variable Name Format Type Length $7 Char 7 VEXInspectionDate Definition: Documents the date that the researcher inspected the vehicle. N Prcnt Code Label 22 2.4 * 2001-01 10 1.1 * 2001-02 23 2.5 * 2001-03 26 2.8 * 2001-04 25 2.7 * 2001-05 28 3.0 * 2001-06 24 2.6 * 2001-07 23 2.5 * 2001-08 16 1.7 * 2001-09 34 3.7 * 2001-10 26 2.8 * 2001-11 16 1.7 * 2001-12 31 3.4 * 2002-01 29 3.1 * 2002-02 44 4.8 * 2002-03 32 3.5 * 2002-04 31 3.4 * 2002-05 26 2.8 * 2002-06 17 1.8 * 2002-07 LTCCS Codebook VehicleExterior Data Set • 364 Codebook – VehicleExterior Data Set N Prcnt Code Label 27 2.9 * 2002-08 27 2.9 * 2002-09 26 2.8 * 2002-10 43 4.7 * 2002-11 20 2.2 * 2002-12 27 2.9 * 2003-01 29 3.1 * 2003-02 37 4.0 * 2003-03 28 3.0 * 2003-04 22 2.4 * 2003-05 37 4.0 * 2003-06 21 2.3 * 2003-07 17 1.8 * 2003-08 10 1.1 * 2003-09 25 2.7 * 2003-10 22 2.4 * 2003-11 18 2.0 * 2003-12 2 0.2 * 2004-01 Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Format Type Length Variable Name ML247F Numeric 8 Transmission Definition: Documents the type of transmission that is in the vehicle. N Prcnt Code Label 131 14.2 1 Manual 746 81.0 2 Automatic 44 4.8 9 Unknown Variable Name Format Type Length ML113F Numeric 8 DriveWheels Definition: Describes the type of drive wheels that power the vehicle. N Prcnt Code Label 499 54.2 1 Front Wheel Drive (FWD) 266 28.9 2 Rear Wheel Drive (RWD) 123 13.4 3 Four Wheel Drive (4WD) 9 1.0 4 All Wheel Drive (AWD) 24 2.6 9 Unknown LTCCS Codebook VehicleExterior Data Set • 365 Codebook – VehicleExterior Data Set Format Type Length Variable Name ML484F Numeric 8 LFRestricted Definition: Documents whether or not the vehicle’s left front tire was prevented from rotation by damaged components of this vehicle as a result of the crash. N Prcnt Code Label 270 29.3 1 Yes 618 67.1 2 No 2 0.2 3 Not-Applicable 31 3.4 4 Unknown Format Type Length Variable Name ML484F Numeric 8 LRRestricted Definition: Documents whether or not the vehicle’s left rear tire was prevented from rotation by damaged components of this vehicle as a result of the crash. N Prcnt Code Label 120 13.0 1 Yes 767 83.3 2 No 2 0.2 3 Not-Applicable 32 3.5 4 Unknown Variable Name Format Type Length ML484F Numeric 8 RRRestricted Definition: Documents whether or not the vehicle’s right rear tire was prevented from rotation by damaged components of this vehicle as a result of the crash. N Prcnt Code Label 112 12.2 1 Yes 776 84.3 2 No 3 0.3 3 Not-Applicable 30 3.3 4 Unknown Variable Name Format Type Length ML484F Numeric 8 RFRestricted Definition: Documents whether or not the vehicle’s right front tire was prevented from rotation by damaged components of this vehicle as a result of the crash. N Prcnt Code Label 251 27.3 1 Yes 641 69.6 2 No 29 3.1 4 Unknown LTCCS Codebook VehicleExterior Data Set • 366 Codebook – VehicleExterior Data Set Format Type Length Variable Name ML484F Numeric 8 LFDeflated Definition: Documents whether or not the vehicle’s left front tire was deflated as a result of the crash. N Prcnt Code Label 270 29.3 1 Yes 618 67.1 2 No 2 0.2 3 Not-Applicable 31 3.4 4 Unknown Variable Name Format Type Length ML484F Numeric 8 LRDeflated Definition: Documents whether or not the vehicle’s left rear tire was deflated as a result of the crash. N Prcnt Code Label 120 13.0 1 Yes 767 83.3 2 No 2 0.2 3 Not-Applicable 32 3.5 4 Unknown Variable Name Format Type Length ML484F Numeric 8 RRDeflated Definition: Documents whether or not the vehicle’s right rear tire was deflated as a result of the crash. N Prcnt Code Label 112 12.2 1 Yes 776 84.3 2 No 3 0.3 3 Not-Applicable 30 3.3 4 Unknown Variable Name Format Type Length ML484F Numeric 8 RFDeflated Definition: Documents whether or not the vehicle’s right front tire was deflated as a result of the crash. N Prcnt Code Label 251 27.3 1 Yes 641 69.6 2 No 29 3.1 4 Unknown LTCCS Codebook VehicleExterior Data Set • 367 Codebook – VehicleExterior Data Set Variable Name Format Type Length OT25F Numeric 8 Wheelbase Definition: Reflects the length (in centimeters) of the vehicle’s original or undamaged wheelbase to the nearest centimeter, based on manufacturer specifications. N Prcnt Code Label 1 0.1 203 203 3 0.3 220 220 1 0.1 224 224 1 0.1 225 225 2 0.2 227 227 1 0.1 236 236 5 0.5 237 237 3 0.3 238 238 6 0.7 239 239 6 0.7 240 240 ------------------------------- 2 0.2 395 395 1 0.1 396 396 4 0.4 400 400 1 0.1 401 401 1 0.1 405 405 1 0.1 408 408 1 0.1 411 411 1 0.1 424 424 2 0.2 428 428 9 1.0 999 Unknown Format Type Length Variable Name OT28F Numeric 8 OverallLength Definition: Documents the overall length (in centimeters) of the vehicle, as specified by the manufacturer. N Prcnt Code Label 1 0.1 222 222 1 0.1 343 343 1 0.1 357 357 2 0.2 362 362 1 0.1 367 367 1 0.1 375 375 1 0.1 379 379 3 0.3 384 384 LTCCS Codebook VehicleExterior Data Set • 368 Codebook – VehicleExterior Data Set N Prcnt Code Label 1 0.1 395 395 1 0.1 396 396 ------------------------------- 1 0.1 614 614 1 0.1 618 618 2 0.2 620 620 1 0.1 621 621 2 0.2 624 624 2 0.2 626 626 2 0.2 627 627 1 0.1 651 651 1 0.1 674 674 9 1.0 9999 Unknown Variable Name Format Type Length OT25F Numeric 8 MaxWidth Definition: Documents the overall/maximum width (in centimeters) of the vehicle, as specified by the manufacturer. N Prcnt Code Label 2 0.2 141 141 3 0.3 153 153 1 0.1 158 158 3 0.3 159 159 1 0.1 160 160 1 0.1 161 161 3 0.3 162 162 7 0.8 163 163 7 0.8 164 164 9 1.0 165 165 ------------------------------ 38 4.1 202 202 10 1.1 203 203 1 0.1 217 217 1 0.1 219 219 1 0.1 236 236 1 0.1 238 238 1 0.1 242 242 1 0.1 244 244 1 0.1 246 246 8 0.9 999 Unknown LTCCS Codebook VehicleExterior Data Set • 369 Codebook – VehicleExterior Data Set Format Type Length Variable Name OT29F Numeric 8 VEXCurbWeight Definition: Documents the vehicle’s curb weight (in kilograms), as identified by manufacturer specifications. N Prcnt Code Label 1 0.1 696 696 1 0.1 710 710 1 0.1 820 820 1 0.1 831 831 2 0.2 885 885 1 0.1 890 890 1 0.1 893 893 1 0.1 912 912 1 0.1 921 921 1 0.1 925 925 ------------------------------ 1 0.1 2697 2697 1 0.1 2738 2738 1 0.1 2753 2753 1 0.1 2759 2759 1 0.1 2777 2777 1 0.1 2839 2839 1 0.1 2847 2847 1 0.1 3118 3118 1 0.1 3259 3259 7 0.8 999999 Unknown Format Type Length Variable Name OT25F Numeric 8 AverageTrack Definition: Documents the vehicle’s average track width in centimeters, calculated by averaging the front and rear track width, values that are identified by the manufacturer. This value represents the average track width prior to the crash (undamaged). N Prcnt Code Label 1 0.1 101 101 1 0.1 102 102 1 0.1 129 129 1 0.1 130 130 3 0.3 134 134 1 0.1 135 135 2 0.2 137 137 5 0.5 138 138 LTCCS Codebook VehicleExterior Data Set • 370 Codebook – VehicleExterior Data Set N Prcnt Code Label 12 1.3 139 139 6 0.7 171 171 ------------------------------ 3 0.3 172 172 10 1.1 173 173 8 0.9 174 174 2 0.2 175 175 1 0.1 176 176 1 0.1 177 177 3 0.3 178 178 1 0.1 180 180 88 9.6 999 Unknown Variable Name Format Type Length OT25F Numeric 8 FrontOverhang Definition: Documents the front overhang in centimeters of the vehicle as identified by manufacturer specifications. Front overhang is the distance between the front axle and the maximum forward projection of the vehicle. This value represents the vehicle’s front overhang prior to the crash (undamaged). N Prcnt Code Label 1 0.1 58 58 1 0.1 61 61 4 0.4 62 62 1 0.1 64 64 4 0.4 65 65 1 0.1 67 67 3 0.3 68 68 11 1.2 70 70 4 0.4 71 71 4 0.4 72 72 ------------------------------ 10 1.1 115 115 5 0.5 116 116 4 0.4 117 117 7 0.8 118 118 3 0.3 119 119 1 0.1 121 121 2 0.2 122 122 1 0.1 125 125 1 0.1 126 126 LTCCS Codebook VehicleExterior Data Set • 371 Codebook – VehicleExterior Data Set N Prcnt Code Label 2 0.2 141 141 43 4.7 999 Unknown Variable Name Format Type Length OT25F Numeric 8 RearOverhang Definition: Documents the rear overhang in centimeters of the vehicle as identified by manufacturer specifications. Rear overhang is the distance between the rear axle and the maximum rear projection of the vehicle. This value represents the rear overhang prior to the crash (undamaged). N Prcnt Code Label 1 0.1 62 62 1 0.1 64 64 1 0.1 65 65 2 0.2 67 67 1 0.1 69 69 1 0.1 71 71 4 0.4 72 72 4 0.4 74 74 3 0.3 75 75 3 0.3 76 76 ------------------------------ 3 0.3 145 145 1 0.1 153 153 1 0.1 154 154 1 0.1 160 160 1 0.1 161 161 4 0.4 162 162 1 0.1 179 179 1 0.1 188 188 1 0.1 200 200 48 5.2 999 Unknown Variable Name Format Type Length OT25F Numeric 8 EndWidth Definition: Represents the undamaged dimension in centimeters of either the contacted end plane or the front undamaged plane if the side plane is contacted. N Prcnt Code Label 1 0.1 118 118 1 0.1 124 124 1 0.1 128 128 3 0.3 130 130 LTCCS Codebook VehicleExterior Data Set • 372 Codebook – VehicleExterior Data Set N Prcnt Code Label 2 0.2 132 132 1 0.1 133 133 2 0.2 135 135 4 0.4 136 136 2 0.2 137 137 10 1.1 138 138 ------------------------------ 6 0.7 190 190 2 0.2 191 191 2 0.2 192 192 1 0.1 193 193 2 0.2 194 194 6 0.7 195 195 5 0.5 196 196 2 0.2 200 200 3 0.3 202 202 1 0.1 214 214 211 22.9 999 Unknown Format Type Length Variable Name ML1201F Numeric 8 VehicleDisposition Definition: Represents the researcher’s assessment of the disposition of the vehicle and is based primarily on inspection of the vehicle. N Prcnt Code Label 130 14.1 0 Not towed due to vehicle damage 784 85.1 1 Towed due to vehicle damage 7 0.8 9 Unknown Variable Name Format Type Length $30 Char 30 Justification Definition: Represents the reason for the determination that the vehicle was or was not towed, based on the researcher’s assessment of the disposition of the vehicle. N Prcnt Code Label 1 0.1 * 4 flat tires, passenger compar 1 0.1 * AXEL DAMAGE 1 0.1 * AXLES DAMAGED AND ENGINE DAMAG 1 0.1 * Air bags deployed. 1 0.1 * Appeared driveable 1 0.1 * BENT FRAME LTCCS Codebook VehicleExterior Data Set • 373 Codebook – VehicleExterior Data Set N Prcnt Code Label 1 0.1 * BENT FRAME RAIL 1 0.1 * BOTH FRONT TIRES RESTRICTED 1 0.1 * BOTH FRONT WHEELS RESTRICTED 1 0.1 * BOTH REAR WHEELS DISABLED ------------------------------ 1 0.1 * vehicle entirely destroyed by 60 6.5 * vehicle inspection 1 0.1 * vehicle inspection LF restrict 1 0.1 * vehicle is driveable 1 0.1 * vehicle repaired 1 0.1 * vehilce inspection 1 0.1 * wheel and tire damage 7 0.8 * wheel damage 1 0.1 * wheel damage both left side 4 0.4 * wheel restriction Note: Asterisk in code column indicates that the stored value is the same as the value in the label column. Variable Name Format Type Length ML115F Numeric 8 MultiStage Definition: Documents whether the vehicle is a multi-stage (initially an incomplete) vehicle or an altered (modified) vehicle. The determination is based on a label attached to the vehicle that demonstrates compliance with all Federal Motor Vehicle Safety Standards. N Prcnt Code Label 889 96.5 0 No post-manufacturer modifications 21 2.3 1 Yes -post-manufacturer modification (specify) 11 1.2 9 Unknown if vehicle is modified LTCCS Codebook VehicleExterior Data Set • 374 Generalized Estimated Sampling Errors The tables on the following pages can be used to estimate standard errors and confidence intervals for estimated totals of variables contained in the LTCCS data sets. Recently, statistical software has become more widely available that allows standard errors and confidence intervals to be estimated directly for samples that include stratification and clustering. The following tables are provided for researchers who may not have access to such software. The tables were derived based on the method of generalized variance functions (GVF). Nine separate tables are provided that can be used according to the level at which the data were analyzed. Tables are provided for each of the nine levels of analysis: · Brake · Occupant · Crash · Passenger · Driver · Truck · Drug · Vehicle · Injury For example, if the data were analyzed at the truck level, then estimated standard errors from the truck table can be applied. If the data were analyzed at the occupant level, then estimated standard errors from the occupant table can be applied. The tables provide estimated standard errors for a range of estimated totals that might be derived from the data; however, there is no need to interpolate if an estimated total falls in between two numbers in a given table. The generalized variance functions that appear below each table can be used to generate the estimated standard errors. The equations appear in the form where x is the estimated total and a and b are constants. Substitution of x, a, and b directly into the equation gives the estimated standard error. Approximate two-sided confidence intervals for estimated totals can be calculated by using the formula where x is the estimated total, t is the upper percentage point of the t-distribution on 12 degrees of freedom for a two-sided confidence interval, and se(x) is the estimated standard error. As an example, suppose the number of occupants wearing a lap and shoulder belt is estimated at 180,000 and a 95% confidence interval is desired. The approximate standard error for this estimate is 29,600, as shown by the entry to the right of 180,000 in the occupant table. The value for t is 2.18 which corresponds to the upper percentage point of the t-distribution on 12 degrees of freedom for a 95% two-sided confidence interval (the degrees of freedom equals the number of PSUs minus the number of strata, which in the case of the LTCCS design is 24-12=12). Therefore, the estimated 95% confidence interval is or (115,472, 244,528). If the estimated total is 182,000, which does not appear in the table, the formula can be applied directly to calculate the estimated standard error, leading to rounded to the nearest 100. LTCCS Codebook Generalized Estimated Sampling Errors • 375 LTCCS ESTIMATES AND STANDARD ERRORS Brake Crash Drug Estimate (x) Standard Error (se) Estimate (x) Standard Error (se) Estimate (x) Standard Error (se) 100 100 100 100 100 100 200 100 200 200 200 200 500 300 500 300 500 300 1,000 500 1,000 600 1,000 600 2,500 1,100 2,000 1,000 2,000 1,100 5,000 2,000 3,000 1,300 3,000 1,500 7,500 2,900 4,000 1,700 4,000 2,000 10,000 3,600 5,000 2,000 5,000 2,400 12,500 4,400 6,000 2,300 6,000 2,800 15,000 5,100 7,000 2,600 7,000 3,200 17,500 5,800 8,000 2,900 8,000 3,600 20,000 6,400 9,000 3,200 9,000 4,000 25,000 7,800 10,000 3,500 10,000 4,300 30,000 9,000 12,500 4,200 12,500 5,300 35,000 10,300 15,000 4,800 15,000 6,200 40,000 11,500 17,500 5,500 17,500 7,000 45,000 12,600 20,000 6,100 20,000 7,900 50,000 13,800 25,000 7,300 25,000 9,500 60,000 16,000 30,000 8,400 30,000 11,100 70,000 18,200 35,000 9,600 35,000 12,700 80,000 20,300 40,000 10,600 40,000 14,300 90,000 22,400 45,000 11,700 45,000 15,800 100,000 24,500 50,000 12,700 50,000 17,300 125,000 29,500 55,000 13,700 55,000 18,800 150,000 34,300 60,000 14,700 60,000 20,200 175,000 38,900 65,000 15,700 70,000 23,100 200,000 43,500 70,000 16,600 80,000 25,900 225,000 48,000 75,000 17,600 90,000 28,600 250,000 52,300 80,000 18,500 100,000 31,300 275,000 56,600 85,000 19,400 110,000 34,000 300,000 60,900 90,000 20,300 120,000 36,600 350,000 69,200 95,000 21,200 130,000 39,200 400,000 77,300 100,000 22,100 140,000 41,800 450,000 85,200 110,000 23,900 150,000 44,300 500,000 93,000 115,000 24,800 160,000 46,900 550,000 100,600 120,000 25,600 170,000 49,400 SE=exp(a + b(ln x)), where a=0.5592 and b=0.8292 SE=exp(a + b(ln x)), where a=0.7857 and b=0.8008 SE=exp(a + b(ln x)), where a=0.4769 and b=0.8577 LTCCS Codebook Generalized Estimated Sampling Errors • 376 LTCCS ESTIMATES AND STANDARD ERRORS Injury Occupant Passenger Vehicle Estimate (x) Standard Error (se) Estimate (x) Standard Error (se) Estimate (x) Standard Error (se) 100 100 500 300 400 200 200 100 750 400 600 300 500 300 1,000 500 800 400 1,000 500 2,000 800 1,000 500 2,500 1,100 3,000 1,100 1,500 600 5,000 1,900 4,000 1,400 2,000 800 7,500 2,600 5,000 1,700 2,500 1,000 10,000 3,300 6,000 2,000 3,000 1,100 12,500 3,900 7,000 2,200 3,500 1,200 15,000 4,600 8,000 2,500 4,000 1,400 17,500 5,200 9,000 2,700 4,500 1,500 20,000 5,800 10,000 3,000 5,000 1,600 25,000 6,900 20,000 5,100 5,500 1,800 30,000 8,000 30,000 7,100 6,000 1,900 35,000 9,100 40,000 8,900 6,500 2,000 40,000 10,200 50,000 10,700 7,000 2,100 45,000 11,200 60,000 12,300 7,500 2,200 50,000 12,200 70,000 14,000 8,000 2,300 55,000 13,200 80,000 15,500 9,000 2,600 60,000 14,200 90,000 17,100 10,000 2,800 70,000 16,100 100,000 18,600 15,000 3,800 80,000 17,900 110,000 20,000 20,000 4,700 90,000 19,700 120,000 21,500 25,000 5,600 100,000 21,500 130,000 22,900 30,000 6,500 125,000 25,800 140,000 24,300 35,000 7,300 150,000 29,900 150,000 25,600 40,000 8,100 175,000 34,000 160,000 27,000 45,000 8,900 200,000 37,900 170,000 28,300 50,000 9,600 225,000 41,700 180,000 29,600 55,000 10,300 250,000 45,400 190,000 30,900 60,000 11,100 275,000 49,100 200,000 32,200 65,000 11,800 300,000 52,700 220,000 34,800 70,000 12,500 325,000 56,300 240,000 37,300 75,000 13,100 350,000 59,800 260,000 39,700 80,000 13,800 375,000 63,300 280,000 42,200 85,000 14,500 400,000 66,700 300,000 44,500 90,000 15,100 SE=exp(a + b(ln x)), where a=0.5629 and b=0.8175 SE=exp(a + b(ln x)), where a=0.6521 and b=0.7971 SE=exp(a + b(ln x)), where a=0.8450 and b=0.7695 LTCCS Codebook Generalized Estimated Sampling Errors • 377 LTCCS ESTIMATES AND STANDARD ERRORS Truck Vehicle Driver Estimate (x) Standard Error (se) Estimate (x) Standard Error (se) Estimate (x) Standard Error (se) 1,000 500 2,000 900 2,000 900 2,000 900 3,000 1,200 3,000 1,200 3,000 1,200 4,000 1,500 4,000 1,500 4,000 1,500 5,000 1,800 5,000 1,800 5,000 1,800 6,000 2,100 6,000 2,100 6,000 2,100 7,000 2,300 7,000 2,300 7,000 2,400 8,000 2,600 8,000 2,600 8,000 2,600 9,000 2,800 9,000 2,900 9,000 2,900 10,000 3,100 10,000 3,100 10,000 3,200 15,000 4,200 15,000 4,300 12,500 3,800 20,000 5,300 20,000 5,500 15,000 4,300 25,000 6,400 25,000 6,500 17,500 4,900 30,000 7,400 30,000 7,600 20,000 5,400 35,000 8,300 35,000 8,600 25,000 6,500 40,000 9,200 40,000 9,500 30,000 7,500 45,000 10,200 45,000 10,500 35,000 8,500 50,000 11,000 50,000 11,400 40,000 9,400 60,000 12,800 60,000 13,200 45,000 10,300 70,000 14,400 70,000 15,000 50,000 11,200 80,000 16,000 80,000 16,700 55,000 12,100 90,000 17,600 90,000 18,300 60,000 13,000 100,000 19,100 100,000 19,900 65,000 13,800 110,000 20,600 110,000 21,500 70,000 14,600 120,000 22,100 120,000 23,100 75,000 15,400 130,000 23,600 130,000 24,600 80,000 16,300 140,000 25,000 140,000 26,100 85,000 17,000 150,000 26,400 150,000 27,600 90,000 17,800 160,000 27,800 160,000 29,100 95,000 18,600 170,000 29,200 170,000 30,500 100,000 19,400 180,000 30,500 180,000 32,000 105,000 20,100 190,000 31,800 190,000 33,400 110,000 20,900 200,000 33,200 200,000 34,800 115,000 21,600 210,000 34,500 210,000 36,200 120,000 22,400 220,000 35,800 220,000 37,600 130,000 23,800 230,000 37,100 230,000 38,900 140,000 25,300 240,000 38,300 240,000 40,300 SE=exp(a + b(ln x)), where a=0.7911 and b=0.7888 SE=exp(a + b(ln x)), where a=0.7224 and b=0.7936 SE=exp(a + b(ln x)), where a=0.6410 and b=0.8042 LTCCS Codebook Generalized Estimated Sampling Errors • 378 Index A AASHTODistance, 135 AASHTORecommended, 153 ABGTest, 254 ABSFunctional, 13 ABSInstalled, 13 AccessControl, 128 AccidentCat, 56 AccidentSEA, 321 ACDcode, 62 ACDdetail, 63 ACRAvoidance, 53 ACRCargoshift, 57 ACRCriticalEvent, 49 ACRJackknife, 57 ACRLocation, 54 ACRReason, 51 ACRRightOfWay, 54 ACRStability, 53 ACSAccelerating, 21 ACSAvoidance, 21 ACSConstant, 20 ACSCurve, 20 ACSDecelerating, 21 ACSHeavyBraking, 22 ACSLightBraking, 20 ACSLocation, 18 ACSModerateBraking, 22 ACSSpillage, 19 ACSStraight, 22 ACSTurn, 20 ACSType, 18 Action, 225 ADAOtherFactor, 87 ADAPostedSpeed, 86 ADATravelSpeed, 85 ADDAdjustingRadio, 108 ADDDialingPhone, 108 ADDPreviousCrash, 110 ADDRecognition, 107 ADDSurveillance, 106 ADHCorrectedVision, 96 AdjustorType, 13 ADRDrugTest, 72 ADROtherFactor, 69 ADRTrafficFlow, 78 ADRWorkSchedule, 68 ADSAverageDay, 122 ADSHoursOnDuty, 117 ADSLongestDay, 121 ADSShortestDay, 122 AFTCurveRadius, 152 AFTFog, 160 AFTHail, 161 AFTNoDriver, 163 AFTRain, 160 AFTSleet, 161 AFTSnow, 160 Aggression, 269 AggressionCount, 90 AggressionReason, 93 AirbagAvail, 234 AirbagAvailable, 242 AirbagDamage, 9 AirbagFailure, 8 AirbagLocation, 6 AirbagNumber, 5 AirbagStatus, 7 AirbagType, 7 AISCode, 202 AJKAccelerating, 212 AJKAvoidance, 212 AJKConstant, 211 AJKCurve, 211 AJKDecelerating, 212 AJKDirection, 210 AJKHeavyBraking, 213 AJKLightBraking, 211 AJKLocation, 210 AJKModerateBraking, 213 AJKOther, 212 AJKSource, 209 AJKStraight, 213 AJKTurn, 211 AJKType, 209 AlcoholTest, 70 AlcoholUse, 70 AnchorAdjustment, 243 ANL, 291 ANMAge, 221 ANMAvoidance, 228 ANMDecision, 227 ANMGender, 224 ANMHeight, 222 ANMPARSevCode, 228 ANMPosition, 224 ANMRESSevCode, 229 ANMType, 224 ANMWeight, 223 AnyDrugsCrash, 48 AnyDrugsVeh, 267 Approach, 85 ApproachingTraffic, 110 Aspect, 202 Assumption, 87 Astigmatic, 100 AuthorizedForHire, 276 AutoBeltAvailable, 245 AutoBeltFailure, 246 AutoBeltProper, 246 AutoBeltSource, 246 AutoBeltUsed, 245 AverageTrack, 370 Axle, 12 LTCCS Codebook Index • 379 AxlesNotUsed, 349 AxlesUsed, 348 B BadLaneMarkings, 155 BaffleFailure, 24 BaseWeight, 183 BeltMotorized, 246 BIK, 291 BIPDOK, 314 BIPDRequired, 314 BlindSpot, 327 BlockingOthers, 93 BlowingDebris, 162 BodyCategory, 360 BondOK, 315 BondRequired, 315 BrakeFailure, 147 BrakesInoperative, 149 BrakesOutOfAdjustment, 149 BrakesSystemDeficiency, 150 BrakeType, 12 BRAPosition, 13 BrokerStatus, 275 Building, 111 C CabStyle, 326 CapacityPercent, 345 Carburetion, 181 CarCount, 42 CargoCarried, 279 CargoLoadSecurement, 150 CargoOK, 315 CargoRequired, 314 CargoType, 340 CarrierEmployer, 269 CarrierOperationDescription, 280 CategoryDescription, 325 CauseCount, 19 CDC, 11 CDCCategory, 38 CDCObjectContact, 28 CDCWidth, 38 CGO, 291 ChamberSize, 14 ChamberType, 15 ChildSeatAvailable, 241 CitDate, 61 ClassVehicle, 139 ClassVehicle2, 142 ClockForce, 30 CMDBCargoWeight, 330 CMVCrashes, 190 CMVViolations, 190 Code, 219 ColdFlu, 98 CollisionManner, 357 CollisionType, 45 ColorBlind, 100 ComfortCount, 77 CommonStatus, 275 CompartmentFailure, 24 Component, 207 ConstructionZone, 144 ContactOther, 11 ContractStatus, 275 ConvDate, 62 Conversant, 105 Conversation, 104 CountDrivers, 280 CountPowerUnits, 281 CRAAlcohol, 48 CrashCode, 54 CrashDate, 40 Crashes, 214 CrashPARSevCode, 43 CrashRESSevCode, 44 CrashTime, 41 CrashType, 43 CriticalEventCat, 51 CrossedLine, 88 CrushDirection, 206 CrushMagnitude, 206 D DamageArea, 140 DamageArea2, 143 DamageLocation, 36 DamageSource, 10 DataRecorder, 327 DateOfDeath, 250 Day, 45 Daylight, 129 DayRunningLights, 183 DCType, 27 DeformCode, 35 DeformDistribution, 34 DeformExtent, 34 DeformLocation, 32 DeformLong, 32 DeformVertical, 33 Demoted, 76 Deployment, 7 Depowered, 7 DesignDefect, 132 DesignedObstructedView, 147 DiabeticBlackout, 97 Discussion, 58 Distraction, 227 DriverFatigue, 268 DriverInspections, 305 DriverNumber, 64 DriverOutOfService, 306 DriverOutOfServicePerc, 306 DriverPhysical, 268 DriverPresent, 186 DriverReported, 95 DriverSEA, 322 DriverViolationsAverage, 307 DriveWheels, 365 LTCCS Codebook Index • 380 DromedaryBox, 326 DrugName, 94 DrugType, 94 E EjectionArea, 235 EjectionType, 234 EmergencyVehicle, 145 Emotional, 74 EmotionExperience, 269 EndWidth, 372 EngineProblem, 148 Entrapment, 236 ENVDust, 137 ENVFog, 136 ENVHail, 136 EnvironmentCount, 162 ENVNoConditions, 135 ENVOtherConditions, 137 ENVRain, 135 ENVSleet, 137 ENVSnow, 136 ENVTrafficFlow, 126 ENVWindGusts, 136 EpilepticSeizure, 97 EQF, 292 EthnicOrigin, 189 Evasion, 87 EventNumber, 26 EventSequence, 138 EVEObjectContact, 141 ExemptForHire, 276 ExhaustLeak, 152 EXPWorkSchedule, 76 ExteriorDistractionCount, 110 ExternalPerson, 111 ExtraLoads, 76 EyeWear, 233 F FamilyProblems, 68 Fatigue, 73 FederalGovernment, 277 FieldLocation, 36 FillInTrips, 82 FIR, 292 FireOrigin, 354 FireSeverity, 354 FirstHarmfulEvent, 358 FlapsDamaged, 9 FlapsOpen, 9 Flashing, 92 FloorRetrieval, 109 FlowRestriction, 126 FOB, 292 Focused, 67 ForceDirection, 29 FourWheelDrive, 180 FrontOverhang, 371 FrontWheelDrive, 180 FuelSystemProblem, 151 FuelType, 182 FunctionalClass, 128 Functioning, 130 G GCSScore, 253 GearPosition, 328 Glare, 162 Glaucoma, 99 GVEBodyType, 167 GVECargoSource, 171 GVECargoWeight, 170 GVECurbWeight, 169 GVEInspection, 172 GVEInspectionDate, 172 GVEMake, 164 GVEModel, 165 GVEMotorcycleDisplacement, 184 GVEPARSevCode, 173 GVEPostedSpeed, 185 GVERESSevCode, 174 GVERestraintType, 181 GVESpecialUse, 172 GVETotalViolations, 192 GVETravelSpeed, 184 GVEVehicleClass, 168 GVEVIN, 171 GVEWeightSource, 169 GVEYear, 166 GVWR, 344 H HandsUsed, 228 Hazard, 348 HazardousMaterial, 291 HazmatInspections, 310 HazmatOutOfService, 311 HazmatOutOfServicePerc, 312 HazmatViolationsAverage, 313 HearingImpaired, 226 HearingImpairment, 101 HearingRestricted, 226 HeartAttack, 97 HMIDisposition, 199 HMIInspection, 198 HMIOutOfService, 199 HMIViolation, 199 Honking, 92 HospitalDays, 248 HoursDriving, 117 HoursSinceSleep, 114 HoursWorked, 120 Hurrying, 73 Hyperopic, 99 I IllegalUTurn, 89 LTCCS Codebook Index • 381 Illness, 69 IllnessFactorCount, 96 ImpactNumber, 35 ImproperBulkLoading, 23 ImproperGeneralLoading, 23 Inattention, 104 IndianTribe, 278 InformationSource, 207 InitialFacility, 248 InitialTreatment, 247 InjuryCount, 252 InjuryNumber, 200 InjurySource, 203 InjurySourceCat, 203 InspDriverOOS, 215 InspectionExists, 198 Inspections, 214 InspectionType, 364 InspVehOOS, 215 InspViols, 216 InsufficientSight, 155 IntegratedRestraints, 240 Interchange, 126 InteriorDistractionCount, 107 IntersectionType, 127 InTransport, 364 IntrusionLocation, 206 IntrusionRow, 206 Intrusions, 237 ITSCount, 335 ITSHeadway, 335 ITSOther, 336 ITSRollover, 336 ITSSideObject, 336 J JAK, 292 Junction, 125 Justification, 373 K KnewRoad, 74 KnewVehicle, 74 L LastSleepEnd, 113 LastSleepHours, 112 LastSleepStart, 113 LastWeekHours, 123 LastWeekMoonlight, 124 LeftDoorMirror, 334 LeftFenderMirror, 334 LeftLength, 16 LegallyBlind, 99 LevelCode, 297 LFDeflated, 367 LFRestricted, 366 LiabilityInsurance, 316 LicState, 60 LightViolations, 91 LoadObstructedView, 146 LoadPressure, 79 LocalGovernment, 278 LocalViols, 216 LRDeflated, 367 LRRestricted, 366 M MainSleepEnd, 116 MainSleepHours, 115 MainSleepStart, 115 ManeuverCount, 88 ManualBeltAvailable, 242 ManualBeltFailure, 243 ManualBeltProper, 243 ManualBeltSource, 245 ManualBeltUsed, 242 ManufactureDate, 342 Material, 196 MaxCrushLocation, 37 MaxWidth, 369 MCMIScmvNonViolations, 195 MCMIScmvViolations, 194 MCMIScrashes, 194 MedianWidth, 152 Medium, 235 MediumStatus, 235 Migrant, 277 Mileage, 282 MileageYear, 282 MinCoverageAmount, 315 MirrorCount, 333 Misjudgment, 85 Mobility, 236 Mortality, 247 Motion, 224 Movement, 259 MovementCount, 19 MultiEjection, 236 MultiStage, 374 MVH, 293 Myopic, 99 N NarrowRoad, 156 NarrowShoulders, 156 NCM, 293 NCO, 293 NewPosition, 75 NoApplicableFatigue, 81 NoApplicableRelations, 83 NoDriverPresent, 69 NoFactors, 101 NonCMVCrashes, 191 NonCMVViolations, 191 NonMotorist, 271 NonMotoristCount, 42 NormalVision, 98 LTCCS Codebook Index • 382 NoTraffic, 144 NumOOSViols, 218 NumViols, 218 O ObjectContactClass, 27 ObjectObscured, 154 ObsceneGestures, 92 Obscured, 66 OCCAge, 230 OCCFatality, 47 OCCGender, 232 OCCHeight, 231 OCCInjSeverityCode, 247 OCCLocation, 238 OCCRestraintType, 238 OccupantMovement, 108 OccupantNumber, 5, 200, 230 OCCWeight, 232 OFR, 293 OINDescription, 201 OOB, 294 Orientation, 225 OTH, 294 Other, 278 OtherAggression, 93 OtherBlackout, 98 OtherCargos, 25 OtherChangeSpecify, 163 OtherComfortFactor, 79 OtherControls, 108 OtherDefect, 148 OtherDefectSpecify, 148 OtherExternal, 111 OtherFactorCount, 101 OtherFactorPhysical, 103 OtherFatigue, 81 OtherIllness, 98 OtherInternal, 109 OtherLiquids, 25 OtherLocationMirror, 335 OtherManeuver, 90 OtherMovement, 21 OtherPressure, 77 OtherPressureCount, 81 OtherProblem, 157 OtherProblemSpecify, 158 OtherRelations, 83 OtherRetrieval, 109 OtherSeizure, 97 OtherSolids, 24 OtherTraffic, 145 OtherTrafficSpecify, 145 OtherViewObstruction, 147 OtherVision, 100 OtherWeather, 161 OtherWeatherSpecify, 161 OutsideLocation, 106 OVEAccidentType, 264 OVEAlcohol, 267 OVEAvoidance, 263 OVECargoShift, 267 OVEConfiguration, 259 OVECrashCode, 265 OVECriticalEvent, 260 OVEDecision, 268 OVEEnvironment, 270 OVEJackKnife, 267 OVELocation, 264 OVEMake, 256 OVEModel, 257 OverallLength, 368 OVEReason, 261 OVERecognition, 268 OVERightOfWay, 264 OverrideDesc, 31 OVESpeed, 271 OVEStability, 263 OVESurveillance, 269 OVEYear, 258 OVR, 294 P PARAlcoholPresent, 186 PARAlcoholTest, 186 PARAlcoholTestResult, 186 Paraplegia, 102 ParBeltUsed, 234 PARDescription, 273 PARDrugsPresent, 188 PARTestDelay, 187 PARTestSource, 188 PARViolationCode, 272 PED, 294 PersonalProblems, 68 PlacardRequired, 333 PoorCondition, 156 PositionNumber, 27 PostInclination, 241 Posture, 238 PowerUnitType, 326 PreEventMovement, 49 PretensionerActuated, 244 PretensionerAvailable, 244 PretensionerTravel, 244 PrevViolations, 193 PriorCrashes, 10 PriorInclination, 241 PriorMaintenance, 11 PrivatePassengersBusiness, 277 PrivatePassengersNonBusiness, 277 PrivateProperty, 276 Prosthesis, 101 PVH, 295 Q QuarterTurns, 355 Quotas, 76 LTCCS Codebook Index • 383 R Race, 233 Railroad, 130 RampSpeed, 156 RanLights, 89 RapidAcceleration, 92 Rating, 318 RatingDate, 317 RearOverhang, 372 RearTapeCond, 349 RearTapePeel, 352 ReasonCat, 52 ReflectiveTapeMissingObscured, 151 ReflectTapeColor, 351 ReflectTapePattern, 350 ReflectTapeType, 350 Reportable, 196 RestraintDamage, 239 Retractor, 244 ReviewDate, 318 ReviewType, 319 RFDeflated, 367 RFRestricted, 366 RightDoorMirror, 333 RightFenderMirror, 334 RightLength, 17 RiskTaking, 227 RoadAlignment, 131 RoadGeometry, 155 RoadProfile, 131 RoadRelation, 125 RoadSurface, 131 Roadway, 270 RoadwayClass, 130 RoadwayFactorCount, 154 Role, 233 RollDirect, 357 RollInitLocation, 356 RollInitType, 355 RollObject, 356 RolloverType, 354 RollTrip, 357 Roof1, 179 Roof2, 179 Roof3, 180 RotatingShift, 80 Rotation, 120 Row, 237 RPM, 327 RRDeflated, 367 RRRestricted, 366 RumbleStrip, 133 RUN, 295 RushHour, 145 S SafetySEA, 323 SCAStatus, 280 SCDDate, 287 SCDDateOfBirth, 288 SCDFatalities, 290 SCDInjuries, 290 SCDState, 288 SCDTowaway, 290 ScheduledExtensions, 80 Score, 321 SCSFatalities, 284 SCSInjuries, 285 SCSTowaway, 286 SCSYear, 284 SDIDate, 297 SDIDriverDOB, 299 SDIHazMat, 302 SDIState, 298 SDITotalViolations, 301 SDVOutOfService, 304 SDVUnitType, 304 SDVViolation, 303 SeatLocation1, 6 SeatLocation2, 6 SeatOrientation, 239 SeatPerformance, 240 SeatRow1, 5 SeatRow2, 6 SeatType, 239 SelfInducedIllegal, 77 SelfInducedOther, 77 SEP, 295 Series, 177 ShippingDeadline, 75 ShortNoticeTrips, 82 ShoulderType, 133 ShoulderWidth, 133 SideTapeCond, 350 SideTapePeel, 352 SightDistance, 153 SightImpaired, 226 SightLine, 66 SightLineDistance, 134 SightLineRestriction, 134 SightRestricted, 226 Signage, 128 SignsMissing, 154 SISTotal, 313 SleepApnea, 102 SleeperBerth, 327 SlickSurface, 157 Sloshing, 24 Smoke, 162 SocialSchedule, 68 SparseTieDowns, 23 Speeding, 84 SpeedingBehavior, 90 STACategory, 324 STADate, 320 StateGovernment, 278 SteerableAxles, 349 SteeringWheelProblem, 152 StopRequired, 67 Stratum, 138 StreetAddress, 110 StrenuousNonWork, 102 LTCCS Codebook Index • 384 StrenuousRecreation, 102 StrokeType, 16 Subject, 105 Summary, 44 SurfaceCondition, 132 SurfaceDefect, 132 SuspensionFrameDeficiency, 151 SwitchStatus, 8 SwitchType, 8 T Tailgating, 84 TailgatingBehavior, 91 TankCapacity, 346 TankFailure, 25 TankLoad, 347 TestDelay, 72 TestResult, 95 TestSource, 71 TEXConfiguration, 331 TEXEmptyWeight, 329 TEXSpeed, 328 TEXTotalLength, 332 TimeOfDeath, 251 TimeStopped, 67 TINDisposition, 338 TINOutOfService, 338 TINPosition, 337 TINViolationCode, 337 TireDeficiency, 149 TireFailure, 147 TotalCrashes, 192 TOTALGVWR, 330 TotalOOS, 301 TowingUnitProblem, 151 Tracking, 107 TrackPosition, 240 Traffic, 270 TrafficControl, 129 TrafficDensity, 78 TrafficSpeed, 78 TrailerCount, 329 Transmission, 365 TransmissionFailure, 148 TravelLanes, 127 Treatment, 47 TRN, 295 TruckCount, 42 TUNBodyType, 339 TUNCargoWeight, 343 TUNEmptyWeight, 342 TUNPosition, 339 TUNSpillage, 348 TUNTotalLength, 344 TUNUnitType, 339 TUNVIN, 341 U UMO, 296 UnderrideTapePeel, 351 Undertaking, 88 UnderWater, 157 UnitNumber, 304 UnitsTransfused, 254 UNK, 296 Unknown, 278 UnknownCause, 25 UnknownFactor, 69 UnknownVision, 100 UnkTypeCrashes, 194 UnpaidLoading, 82 UnscheduledExtensions, 81 UnspecifiedExternal, 111 Upset, 73 USMail, 277 V VariableCompensation, 82 VehicleCount, 41 VehicleDefectCount, 146 VehicleDisposition, 373 VehicleInspections, 308 VehicleLightingDeficiency, 150 VehicleLoad, 79 VehicleObscured, 155 VehicleOutOfService, 308 VehicleOutOfServicePerc, 309 VehicleOverweight, 150 VehicleSEA, 323 VehicleState, 270 VehicleType, 182 VehicleViolationsAverage, 310 VEXBodyType, 360 VEXCargoSource, 362 VEXCargoWeight, 362 VEXCurbWeight, 370 VEXInspectionDate, 364 VEXSpecialUse, 363 VEXVehicleClass, 361 VEXVIN, 363 VEXWeightSource, 361 VINBodyType, 178 VINMake, 174 VINModel, 176 VINWeight, 182 VINYear, 176 ViolationNumber, 59 ViolationType, 338 ViolDesc, 219 ViolDescription, 64 W Waiver, 197 WashedOut, 157 WeakTieDowns, 23 Weather, 270 WeatherCount, 159 Weaving, 91 WeekAverage, 119 WeekLongest, 118 LTCCS Codebook Index • 385 WeekShortest, 119 Wheelbase, 368 WheelConfig, 183 WhileCount, 210 WindGust, 160 WorkDaysLost, 249 WorkFatigueCount, 80 WorkPressureCount, 75 WrongTurnLane, 89 WrongWay, 89 WZE, 296 Z ZipCode, 189 LTCCS Codebook Index • 386