DATABASE NAME

     PLNAME: 1980 Census Master Area Reference File of Places

DATABASE DESCRIPTION

     Locations and names of places in the United States including
     1980 Census population

ORIGINATING AGENCY

     Bureau of the Census

AGENCY RESPONSIBLE FOR MAINTAINING DATA

     Bureau of the Census

CONTACT

     National Transportation Atlas Databases
     Bureau of Transportation Statistics
     U.S. Department of Transportation
     Washington, DC  20590
     (202) 366-DATA
     Internet:  info@bts.gov

SOURCE

     1:100,000 1980 Tiger/Line Census Files

ACCURACY

     80 m (260 ft) root-mean square positional accuracy

TYPE OF GIS DATABASE

     Point database with nodes and links

FILES/SIZE/NUMBER OF RECORDS

     One ASCII file

     1)   plname.pnt     node file contains point locations and
                         attributes

     Approximate size of file:     1,263,000 bytes
     Approximate number of nodes:  22,500

FILE STRUCTURE

     The file is ASCII-fixed format.  Character fields are not
     enclosed in quotation marks.

     The Node File

   FIELD  ITEM                TYPE      REMARKS

     1    State               A2        State postal abbreviation
     2    Place name          A20       Name of place according
                                        to Census
     3    Code                A1        Census code-type of place
     4    Longitude           F9.4      Longitude of place in
                                        decimal degrees, explicit
                                        decimal
     5    Latitude            F9.4      Latitude of place in
                                        decimal degrees, explicit
                                        decimal
     6    Population          N7        1980 population per
                                        Census

DISCUSSION

     The places in this database were extracted by Oak Ridge
     National Laboratory.  Places in Alaska and Hawaii were added
     to the database by Vanderbilt University.  No additional
     editing was performed from the original source.