Local Update of Census Addresses (LUCA) Program Supplemental Information for Digital Updates I. General Business Rules A. Definitions 1. Jurisdiction is the entity or entities that the user is associated with and has registered to participate in the 2010 LUCA program. 2. Geographic extent is the geographic area for which the user has permission to submit LUCA updates for a given jurisdiction. This is equal to the geographic area(s) of the jurisdictions for which they are responsible plus the geographic area of the county or counties surrounding the geographic area(s). 3. City-style addresses are those address records with a house number and street name. These are identified in the address list by having a value in the 'Mailing House Number/Building Number' and 'Mailing Street Name/Building Name' fields. 4. MAF is the acronym for the Master Address File. The MAF is a nationwide list of all addresses to support many of the Census Bureau's operations. Besides containing mailing addresses and ZIP Codes, a MAF record also contains geographic information about the location of addresses. 5. Feedback is the phase of the 2010 LUCA program where the Census Bureau provides data back to participants providing the disposition of the 2010 LUCA program-related updates that they provided to the Census Bureau. 6. Structure point is a map spot. A structure point is defined as a type of point feature that acts as a designation on a Census Bureau map to mark the location of one or more living quarters. Each structure point within a census block is assigned a unique number, which corresponds to an address in the MAF. A structure point will have an associated set of latitude/longitude coordinates. 7. TIGER is the acronym for the Topologically Integrated Geographic Encoding and Referencing System (TIGER). TIGER is a computer database that contains a digital representation of all map features (streets, roads, rivers, railroads, lakes, and so forth) required to support Census Bureau operations, the related attributes for each, and the geographic identification codes for all entities used by the Census Bureau to tabulate data for the United States, Puerto Rico, and the Island Areas. 8. MAF/TIGER Feature Class Code (MTFCC) is intended to classify and describe geographic objects or features. A feature class is a grouping of features in MAF/TIGER that share basic characteristics. A "feature" differs from a "feature class" in that the feature is an instance of the feature class. For example, "Lake" and "Road" are feature classes while "Lake Superior" and "Suitland Road" are features. The first letter of the MTFCC is used to group features into their common feature category. There are eleven feature categories. "MTFCC and CFCC Crosswalk - Draft v.1" is a table that shows the relationships between the CFCCs (in the TIGER/Line(r) file) and the MTFCCs (in the MAF/TIGER data base). B. Three Participation Options Each participant has three participation options available for the LUCA program. For those participants receiving the address list, the Census Bureau will provide the address records for their jurisdiction only. Table 1 summarizes the relationships between the options and the products. Table 1: Participation Options Product Option 1 Option 2 Option 3 Map View/Update View/Update View/Update Census Address List View/Update View Only NA Address Count List View/Update View Only View Only C. Address List Data Security during Shipment The Census address list contains Title 13 data and, therefore, must be protected during shipment from and to the Census Bureau and the participant. To ensure the secure distribution of Title 13 data, the Census Bureau will use SecureZIP to encrypt and zip the address list into a self-decrypting archive using a password provided by the Census Bureau. The participant will then use this password for zipping the updated Census address list before shipment back to the Census Bureau. The participant may use any zipping software that enables password protection, such as PKZIP and WinZip. II. Address List A. Address List Fields 1. Table 2 is a listing of potential fields in the address list. Table 2: Address List Fields Field Maximum Format Display Name Character Length Entity ID Code 12 Variable length alphanumeric Entity ID Line Number 7 Variable length numeric Line # MAF ID 9 Fixed length numeric MAFID Action Code 1 Blank; entered by participant or Action Code application State Code 2 Fixed length numeric State County Code 3 Fixed length numeric County Census Tract Number 7 Fixed length numeric Tract Census Block Number 5 Fixed length numeric Block Group Quarters Flag 1 Fixed length alpha GQ Flag House Number 35 Variable length alphanumeric House # Street Name Prefix Qualifier 3 Variable length alpha Prefix Qualifier Street Name Prefix Direction 2 Variable length alpha Prefix Direction Street Name Prefix Type 14 Variable length alpha Prefix Type Street Name 100 Variable length alphanumeric Street Name Street Name Suffix Type 14 Variable length alpha Suffix Type Street Name Suffix Direction 2 Variable length alpha Suffix Direction Street Name Suffix Qualifier 3 Variable length alpha Suffix Qualifier Location Description or GQ Name 100 Variable length alphanumeric Location Description or GQ Name Apartment/ Unit Number 53 Variable length alphanumeric Apartment/Unit # City -Style Mailing ZIP Code 5 Fixed length alpha City-Style ZIP Code Non City - Style Mail Delivery Address (RR#, HCR#, or PO BOX#) 50 Variable length alphanumeric Non City-Style Mail Address Non City-Style ZIP Code 5 Fixed length alpha Non City-Style ZIP Code Structure Point 5 Fixed length alphanumeric Structure Point Structure Latitude 11 Fixed length numeric Structure Lat Structure Longitude 12 Fixed length numeric Structure Lon City-Style Address Flag 1 Y = Yes, N= No B. Address List Action Codes Below is the current list of potential action codes that the participant can assign to a Census address record. Note that the participant must indicate an address record as a group quarters via the Group Quarters Flag field. * 'A' - Address added * 'C' - Address field(s) was modified (changed) * 'D' - Address to delete * 'N' - Address is nonresidential or commercial * 'J' - Address is outside of the jurisdiction and not enough information is available for correction (to make it within the jurisdiction) C. Address List Update Rules 1. The participant can update city-style addresses only. 2. The participant can assign only one action code to an address record. 3. If a participant challenges the housing unit or group quarters count for a block, the participant then cannot provide any updates for individual address records associated with that block and vice versa (refer to section IV.B). 4. The participant can update any field for city-style address records except for the MAFID. 5. The participant may not update the MAFID. 6. If the participant copies information from an existing address record to create a new record (add), the MAFID field for the new address record must be blank. 7. The participant can select an address record in the address list, and the respective block will be noted on the map. 8. The participant can select an address record in the address list, and the values for the block for that address will be noted on the address count list. D. Address List Sorting The following is a list of the sorts that a participant finds useful. The participant must return the data in the exact same layout as was provided to the participant in order for the Census Bureau to use the file for updating the MAF. The Census Bureau cannot process files with concatenated fields. * Sort by Line Number - by Line Number, then the State Code, then the county Code, then the Tract Number, then the Block Number, then the Street Name Prefix Qualifier, then the Street Name Prefix Direction, then the Street Name Prefix Type, then the Street Name, then the Street Name Suffix Type, then the Street Name Suffix Direction, then the Street Name Suffix Qualifier, then the House Number. This is the default sort provided by the Census Bureau. * Sort by Geography - The State Code, then the County Code, then the Tract Number, then the Block Number, then the Line Number. * Sort by ZIP Code - The City-Style Mailing ZIP Code, then by Line Number. * Sort by House Name/Street Number - The Street Name Prefix Qualifier, then the Street Name Prefix Direction, then the Street Name Prefix Type, then the Street Name, then the Street Name Suffix Type, then the Street Name Suffix Direction, then the Street Name Suffix Qualifier, then the House Number. * Sort by Geography/Address - The State Code, then the County Code, then the Tract Number, then the Block Number, then the Street Name Prefix Qualifier, then the Street Name Prefix Direction, then the Street Name Prefix Type, then the Street Name, then the Street Name Suffix Type, then the Street Name Suffix Direction, then the Street Name Suffix Qualifier, then the House Number. * Sort by ZIP Code/Address - The City-Style Mailing ZIP Code, then the Street Name Prefix Qualifier, then the Street Name Prefix Direction, then the Street Name Prefix Type, then the Street Name, then the Street Name Suffix Type, then the Street Name Suffix Qualifier, then the House Number. * Sort by Action Code/Geography - The Action Code, then the State Code, then the County Code, then the Tract Number, then the Block Number, then the Line Number. * Sort by Action Code/House Name/Street Number - The Action Code, then the Street Name Prefix Qualifier, then the Street Name Prefix Direction, then the Street Name Prefix Type, then the Street Name, then the Street Name Suffix Type, then the Street Name Suffix Direction, then the Street Name Suffix Qualifier, then the House Number. III. Address Count List A. Address Count List Fields Table 4 is a list of the fields in the Address Count List. Table 4: Address Count List Fields Field Maximum Format Display Name Character Length Entity ID Code 11 Variable length alphanumeric Entity ID State Code 2 Fixed length numeric State County Code 3 Fixed length numeric County Census Tract and Suffix 7 Variable length numeric, Tract pending suffixes Census Block and Suffix 5 Variable length alphanumeric Block Census Count of Housing Unit Addresses 7 Variable length numeric Census HU Count Local Count of Housing Unit Addresses 7 Variable length alphanumeric Local HU Count Census Count of Group Quarters Addresses7 Variable length numeric Census GQ Count Local Count of Group Quarters Addresses 7 Variable length alphanumeric Local GQ Count B. Address Count List Update Rules 1. The participant provides a value in the Local Count of Housing Unit Addresses and Local Count of Group Quarters Addresses fields for any block in their geographic extent. 2. As noted in II.C.3 above, the participant may not provide any updates for individual address records associated with a block if the participant challenges the housing unit or group quarters count for that block. 3. The participant can select a block in the address county list, and the respective block will be noted on the map. 4. The participant can select a block in the address count list, and the addresses within that block will be noted on the address count list. IV. Map Update Rules A. Legal Transactions * Add line/Add name/Add MTFCC * Delete line * Copy name, MTFCC, and address ranges from existing line/Add new line/ Delete existing line * Edit name * Edit MTFCC * Add structure point (for the Feedback phase only) * Move structure point (for the Feedback phase only) * Delete structure point (for the Feedback phase only) * Add node/ Split line/Duplicate attributes B. Participant Allowed Actions 1. The participant may add a linear feature. a. The participant may start and end the feature at an intersection or at the end of a linear feature (point), on a linear feature (line), or in space. The participant may add curve points between the start and the end points b. The participant must choose a classification (listed in the Feature Classifications section below). c. The participant must name added road features. d. The participant may name the feature with acceptable prefixes and types. 2. The participant may delete features (existing segments/ 1-cells) a. The participant may delete existing features. b. If feature is a block boundary, the participant must change the MTFCC for the visible feature to the MTFCC for a must-hold block boundary in order to maintain the topology. 3. The participant may add nodes to a line to split a feature. When the participant adds a node to split a feature, the new segments must have the attributes (names, addresses, classification code) of the original feature. The participant may modify the lines and their names and classifications separately. 4. The participant may add, edit, and delete primary names. 5. The participant may not add, edit, nor delete alternate names. 6. The participant must provide the name and the MTFCC (attributes) for all new road features. 7. The participant must provide the MTFCC for all new lines. 8. The participant may edit the classification of a feature (refer to section IV.D). 9. The participant may view attribute information (all names, addresses, classification code, left geography 2-cell, and right geography 2-cell) for all features. 10. For the initial LUCA products, if the participant adds a structure point to the map and the associated address to the address list, and then decides to delete that address, the participant must delete the address from the address list and also from the map. 11. If the participant marks an address record for a city-style address in the address list with a 'Delete' action code, the participant must also mark the associated structure point as deleted on the map. 12. For the feedback LUCA products, for any address that the participant challenges, they must also move, add, or delete the associated structure point. 13. The participant can select a block on the map, and the addresses within that block will be noted on the address list. 14. The participant can select a block on the map, and the values for that block will be noted on the address count list. C. Feature Classifications The following features will appear on the map for the user to view and/or edit: 1. Road Features MTFCC Feature Name CFCC S1100 Interstate Highway or Primary Road with limited access A11, A12, A13, A14, A15, A16, A17, A18, A19 S1200 Primary Road without limited access, US Highway, State Highway, A21, A22, A23, A24, A25, A26, A27, A28, A29, A31, or County Highway, Secondary and connecting roads A32, A33, A34, A35, A36, A37, A38, A39 S1400 Local Neighborhood Road, Rural Road, City Street A41, A42, A43, A44, A45, A46, A47, A48, A49, A61, A62 S1500 Vehicular Trail (4WD) A51, A52, A53 S1630 Ramp A63 S1640 Service Drive usually along a limited access highway A64 S1710 Walkway/Pedestrian Trail A70, A71 S1720 Stairway A72 S1730 Alley A73 S1740 Private Road for service vehicles (logging, oil fields, A74 ranches, etc.) S1750 Private Driveway N/A 2. Water Features MTFCC Feature Name CFCC H3010 Stream/River H10, H11, H12, H76, H77 H3013 Braided Stream H13 H3020 Canal, Ditch or Aqueduct H20, H21, H22 3. Railroad MTFCC Feature Name CFCC R1011 Railroad Feature (Main, Spur, or Yard) B11, B12, B13, B14, B15, B16, B19, B21, B22, B23, B29, B31, B32, B33, B39 R1051 Carline, Streetcar Track, Monorail, Other Mass Transit Rail B51, C31 R1052 Cog Rail Line, Incline Rail Line, Tram B52 4. Miscellaneous Features MTFCC Feature Name CFCC P0001 Nonvisible Legal/Statistical Boundary F00, F10, F11, F12, F13, F14, F15, F16, F17, F18, F19, F20, F21, F22, F23, F24, F25, F50, F52, F70, F71, F72, F73, F74, F80, F81, F82, F83, F84, F85, F86, F87, F88 L4010 Pipeline C10 L4020 Power Transmission Line C20 L4110 Fence Line E10 L4121 Ridge Line E21 L4031 Aerial Tramway/Ski Lift N/A K2451 Airport or Airfield D51 L4140 Property/Parcel Line F40, F41 L4165 Ferry Crossing A65, B40 D. Topology 1. The participant can perform only those actions that will enforce the basic rules of topology in order to ensure that coincident features remain coincident. 2. All topological requirements are met before the participant delivers the updated file to the Census Bureau. 6/15/2007 1