Theme:  Roads and transportation routes
Cover Name: roads
Scale:      2,000,000
Source:     USGS Digital Line Graphs
Date:       1982


Abstract:  Statewide roads were taken from USGS 1:2,000,000 Digital Line Graphs (DLG) dataset.  The arc attribute MIN has the following values:


      5020     Primary
      5028     Secondary (all weather, hard surface)
      5031     Light Duty (all weather, improved)
      5041     Unimproved (fair or dry weather)
      5051     Proposed
      5062     Ferry, auto


Due to the age of this information, some of the centerline information is no longer current.


For details on the source, please refer to the publication below:


Publication:  Domaratz, Michael A., Cheryl A. Hallam, Warren E. Schmidt, and Hugh W. Calkings. U.S. Geological Survey Circular 895, Digital Line Graphs from 1:2,000,000-Scale Maps, USGS Digital Cartographic Data Standards, 1982.




               Description of SINGLE precision coverage roads


                                FEATURE CLASSES


                                    Number of  Attribute     Spatial
Feature Class          Subclass     Features   data (bytes)  Index?   Topology?
-------------          --------     ---------  ------------  -------  ---------
ARCS                                      558        52
NODES                                     325
ANNOTATIONS                ROAD            16
                        NPSROAD            16


                               SECONDARY FEATURES


Tics                                        4
Arc Segments                            11088


                                   TOLERANCES


Fuzzy   =                 0.005 N          Dangle  =                 0.000 N


                               COVERAGE BOUNDARY


Continue? 
Xmin =                 -176.744            Xmax =                  179.459
Ymin =                   51.361            Ymax =                   71.317


                                     STATUS


The coverage has not been Edited since the last BUILD or CLEAN.


                          COORDINATE SYSTEM DESCRIPTION


Projection           GEOGRAPHIC
Units                        DD             Spheroid      CLARKE1866
Parameters:




COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME     INDEXED?
    1  FNODE#                 4     5     B      -                        -
    5  TNODE#                 4     5     B      -                        -
    9  LPOLY#                 4     5     B      -                        -
   13  RPOLY#                 4     5     B      -                        -
   17  LENGTH                 4    12     F      3                        -
   21  ROADS#                 4     5     B      -                        -
   25  ROADS-ID               4     5     B      -                        -
   29  NUM                    4     4     I      -                        -
   33  MAJ                    3     3     I      -                        -
   36  MIN                    4     4     I      -                        -
   40  MAJ2                   3     3     I      -                        -
   43  MIN2                   4     4     I      -                        -
   47  DXF-LAYER              5     5     C      -                        -
     **  REDEFINED ITEMS  **
   36  DXF                    4     4     C      -                        -