Revisions and updates to this layer include: 2.) filename: tiger90_1298.dir - 100 county files. The December 1998 update to this layer consisted of: A) joining the FNAME attribute to the AAT file to enable direct selection of feature names. B) projecting the data from NAD27 datum, State Plane projection, units of measure feet TO: NAD83 DATUM, State Plane PROJECTION, UNITS OF MEASURE METERS. This was done to comply with the NC Geographic Information Coordinating Council's "Statement of Direction for North Carolina Corporate Geographic Database Horizontal Reference, Datum and Unit of Measure". This reprojecting was done in various ways depending on the data type and content. Vector data was projected using the 'project' command in ESRI's Arc software and topology was cleaned and built based on coverage needs. Raster data was projected using ESRI's Grid module and various steps as applicable. 1.) filename: tiger90_90.dir - 100 county files The 1990 files are the original versions in nad27, stateplane, feet.
US Department of Commerce, Bureau of the Census, 19981201, onemap_prod.SDEADMIN.tiger90_poly: US Department of Commerce, Bureau of the Census, Washington, DC.Online Links:
This is a Vector data set. It contains the following vector data types (SDTS terminology):
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.000378
Ordinates (y-coordinates) are specified to the nearest 0.000378
Planar coordinates are specified in meters
The horizontal datum used is North American Datum of 1983.
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257222.
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
TIGER90.TGR Tabular information for record types 1,2,4,5, and 6 COLUMN ITEM NAME WIDTH OUTPUT TYPE DEC DESCRIPTION 1 TIGER90-ID 4 10 B - Unique ID (for relating AAT to TGR code file 5 RT 1 1 I - Record type 1,2,4,5, or 6 6 VERSION 4 5 B - Version number 10 RECNUM 10 10 I - Permanent record number 20 SIDE 1 1 I - Single side segment code 21 SOURCE 1 1 C - Source code 22 FDPRE 2 2 C - Feature direction, prefix 24 FNAME 30 30 C - Feature name 54 FTYPE 4 4 C - Feature type 58 FDSUF 2 2 C - Feature direction, suffix 60 CFCC 3 3 C - Census feature class code 63 ADD1-L 11 11 C - From address, left 74 ADD2-L 11 11 C - To address, left 85 ADD1-R 11 11 C - From address, right 96 ADD2-R 11 11 C - To address, right 107 FFL-L 1 1 I - From imputed address flag, left 108 TFL-L 1 1 I - To imputed address flag, left 109 FFL-R 1 1 I - From imputed address flag, right 110 TFL-R 1 1 I - To imputed address flag, right 111 ZIPCO-L 4 10 B - ZIP code, left 115 ZIPCO-R 4 10 B - ZIP code, right 119 AIR90L 4 5 B - FIPS American Indian Reservation, left 123 AIR90R 4 5 B - FIPS American Indian Reservation, right 127 ANRC90L 2 2 B - Alaska Native Regional Corporation code, left 129 ANRC90R 2 2 B - Alaska Native Regional Corporation code, right 131 ST90L 2 2 B - FIPS state code, left 133 ST90R 2 2 B - FIPS state code, right 135 CNT90L 2 3 B - FIPS county code, left 137 CNT90R 2 3 B - FIPS county code, right 139 MCD90L 4 5 B - FIPS MCD/CCD code, left 143 MCD90R 4 5 B - FIPS MCD/CCD code, right 147 SUBMCD90L 4 5 B - FIPS sub-MCD code, left 151 SUBMCD90R 4 5 B - FIPS sub-MCD code, right 155 PLACE90L 4 5 B - FIPS place code, left 159 PLACE90R 4 5 B - FIPS place code, right 163 CTBNA90L 6 6 I - Census Tract/BNA code, left 169 CTBNA90R 6 6 I - Census Tract/BNA code, right 175 BLK90L 4 4 C - Tabulation block number, left 179 BLK90R 4 4 C - Tabulation block number, right 183 FROMLONG 4 10 B - Longitude from (implied 6 decimal places) 187 FROMLAT 4 9 B - Latitude from (implied 6 decimal places) 191 TOLONG 4 10 B - Longitude to (implied 6 decimal places) 195 TOLAT 4 9 B - Latitude to (implied 6 decimal places) TIGER90.RT3 Tabular information for record type 3 COLUMN ITEM NAME WIDTH OUTPUT TYPE DEC DESCRIPTION 1 RT 1 1 I - Record type 3 2 VERSION 4 5 B - Version number 6 RECNUM 10 10 I - Permanent record number 10 ST80L 2 2 B - 1980 FIPS state code, left 12 ST80R 2 2 B - 1980 FIPS state code, right 14 CO80L 2 3 B - 1980 FIPS county code, left 16 CO80R 2 3 B - 1980 FIPS county code, right 18 MCD80L 2 3 B - 1980 MCD/CCD census code, left 22 MCD80R 2 3 B - 1980 MCD/CCD census code, right 26 PLACO80L 4 5 B - 1980 Place code, left 30 PLACO80R 4 5 B - 1980 Place code, right 34 CTBNA80L 6 6 I - 1980 Census Tract/BNA code, left 40 CTBNA80R 6 6 I - 1980 Census Tract/BNA code,right 46 BLK80L 2 3 B - 1980 Block code, left 48 BLK80R 2 3 B - 1980 Block code, right 50 MCDCCD80L 2 3 B - 1980 Minor Civil Division/Census county, left 52 MCDCCD80R 2 3 B - 1980 Minor Civil Division/Census county right 54 PLACO80L 4 5 B - 1980 FIPS PUB 55 (place) code, left 58 PLACO80R 4 5 B - 1980 FIPS PUB 55 (MCD/CCD) code, right 62 AIR90L 4 5 B - 1990 American Indian Reservation census code, left 66 AIR90R 4 5 B - 1990 American Indian Reservation census code, right 70 MCDCCD90L 2 3 B - 1990 Minor Civil Division/Census county, left 72 MCDCCD90R 2 3 B - 1990 Minor Civil Division/Census county, right TIGER90.PAT Polygon Attribute Table COLUMN ITEM NAME WIDTH OUTPUT TYPE DEC DESCRIPTION 1 AREA 4 12 F 3 Total area in meters 9 PERIMETER 4 12 F 3 Total perimeter in meters 17 TGR# 4 5 B - Poly internal id number 21 TIGER90-ID 4 5 B - Poly user id number 25 ZIPCO 4 5 B - Combined left & right of ZIP code 29 AIR 4 5 B - Combined left & right of FIPS American Indian Reservation 33 ANRC 2 2 B - Combined left & right of Alaska Native Regional Corporation 35 ST 2 2 B - Combined left & right of FIPS state code 37 CNT 2 3 B - Combined left & right of FIPS county code 39 MCD 4 5 B - Combined left & right of FIPS MCD/CCD code 43 SUBMCD 4 5 B - Combined left & right of FIPS Sub-MCD code 47 PLACE 4 5 B - Combined left & right of FIPS code 51 CTBNA 6 6 I - Combined left & right of Census Tract/BNC code 57 BLK 4 4 C - Combined left & right of Tabulation block number **REDEFINED ITEMS ** 17 LPOLY# 4 5 B - Same as TGR# (Used to calculate item over from the AAT) 17 RPOLY# 4 5 B - Same as TGR# (Used to calculate item over from the AAT) TIGER90.AAT Arc Attribute Table COLUMN ITEM NAME WIDTH OUTPUT TYPE DEC DESCRIPTION 1 FNODE# 4 5 B - From-node id of linear feature 5 TNODE# 4 5 B - To-node id of linear feature 9 LPOLY# 4 5 B - Left-side polygon id of linear feature 13 RPOLY# 4 5 B - Right-side polygon id of linear feature 17 LENGTH 4 12 F 3 Length of linear feature in meters 25 TIGER90# 4 5 B - Internal id number 29 TIGER90-ID 4 5 B - Unique ID (for relating AAT to TGR code file) 33 CFCC 3 3 C - Census feature class code (record type 1) 36 RT 1 1 I - Record type 1,2,4,5, or 6 37 VERSION 4 5 B - Version number 41 RECNUM 10 10 I - Permanent record number 51 SIDE 1 1 I - Single side segment code 52 SOURCE 1 1 C - Source code 53 FDPRE 2 2 C - Feature direction, prefix 55 FNAME 30 30 C - Feature name 85 FTYPE 4 4 C - Feature type 89 FDSUF 2 2 C - Feature direction, suffix 91 ADD1-L 11 11 C - From address, left 102 ADD2-L 11 11 C - To address, left 113 ADD1-R 11 11 C - From address, right 124 ADD2-R 11 11 C - To address, right 135 FFL-L 1 1 I - From imputed address flag, left 136 TFL-L 1 1 I - To imputed address flag, left 137 FFL-R 1 1 I - From imputed address flag, right 138 TFL-R 1 1 I - To imputed address flag, right 139 ZIPCO-L 4 10 B - ZIP code, left 143 ZIPCO-R 4 10 B - ZIP code, right 147 AIR90L 4 5 B - FIPS American Indian Reservation, left 151 AIR90R 4 5 B - FIPS American Indian Reservation, right 155 ANRC90L 2 2 B - Alaska Native Regional Corporation code, left 157 ANRC90R 2 2 B - Alaska Native Regional Corporation code, right 159 ST90L 2 2 B - FIPS state code, left 161 ST90R 2 2 B - FIPS state code, right 163 CNT90L 2 3 B - FIPS county code, left 165 CNT90R 2 3 B - FIPS county code, right 167 MCD90L 4 5 B - FIPS MCD/CCD code, left 171 MCD90R 4 5 B - FIPS MCD/CCD code, right 175 SUBMCD90L 4 5 B - FIPS sub-MCD code, left 179 SUBMCD90R 4 5 B - FIPS sub-MCD code, right 183 PLACE90L 4 5 B - FIPS place code, left 187 PLACE90R 4 5 B - FIPS place code, right 191 CTBNA90L 6 6 I - Census Tract/BNA code, left 197 CTBNA90R 6 6 I - Census Tract/BNA code, right 203 BLK90L 4 4 C - Tabulation block number, left 207 BLK90R 4 4 C - Tabulation block number, right 211 FROMLONG 4 10 B - Longitude from (implied 6 decimal places) 215 FROMLAT 4 9 B - Latitude from (implied 6 decimal places) 219 TOLONG 4 10 B - Longitude to (implied 6 decimal places) 223 TOLAT 4 9 B - Latitude to (implied 6 decimal places) ** REDEFINED ITEMS ** 33 CODE 1 1 C - First letter in CFCC
U.S. Bureau of the Census Washington, DC 20233 NCCGIA Director Database Administration, Zsolt Nagy Database Management, Ken Shaffer North Carolina Center for Geographic Information and Analysis Governor's Office Office of State Planning State of North Carolina 301 North Wilmington Street, Suite 700 Raleigh, NC 27601-2825
(301) 763-4100 (voice)
(301) 763-4794 (FAX)
These file was developed to enable a user to see the geographic component from the 1990 Census. They can be used to join demographic data from the 1990 census for use in a GIS.
US Department of Commerce, Bureau of the Census, 1990, Geographic Base File/Dual Independent Map Encoding: US Department of Commerce, Bureau of the Census, Washington, D.C..
Survey, US Geological , 1990, USGS 30 x 60 Minute Series Maps: US Geological Survey, Reston, VA.
NC Center for Geographic Information and Analysis, 1990, ARC/INFO TIGER/Line county files: NC Center for Geographic Information and Analysis, Raleigh, NC.
Person who carried out this activity:
(919) 733-2090 (voice)
(919) 715-0720 (FAX)
dataq@cgia.state.nc.us
Data sources used in this process:
The digital files from the Census Bureau were converted into ARC/INFO files. The attributes supplied in the TIGER files have not be changed by NCCGIA. Refer to the technical documentation TIGER/Line Census Files, 1990 Technical Documentation/ prepared by the Bureau of the Census. - Washington: The Bureau, 1991.
With the exception of projecting data, no other positional changes were made by NC CGIA. Refer to the Technical Documentation for more info on the source data.
Linework for the 1990 TIGER/Line files is based predominantly on the USGS 1:100,000-scale Digital Line Graph files. Features not present in those files, which were deemed as needed for the Census files, were supplemented from various sources. Refer to the Technical Documentation. All feature types were converted by CGIA.
The ARC/INFO files have been "cleaned" and "built" to ensure complete topology.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- Acknowledgement of products derived form this data set should cite the following: The source of the 1990 Census TIGER/Line data is the North Carolina Corporate Geographic Database. Earlier versions of this data set may exist. The user must be sure to use the appropriate data set for the time period of interest. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, CGIA cannot assume liability for any damages or misrepresentation caused by any inaccuracies in the data or as a result of changes to the data caused by system transfers.
(919) 733-2090 (voice)
(919) 715-0725 (FAX)
dataq@cgia.state.nc.us
1990 Census TIGER/Line Files
NCCGIA is charged with the development and maintenance of the State's corporate geographic database and, in cooperation with other mapping organizations, is committed to offering its users accurate, useful, and current information about the state. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop the corporate database may be reflected in the data supplied. The client must be aware of data conditions and bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collection methodology, currency of data, and other conditions specific to certain data. NCCGIA does not support secondary distribution of this data. The use of trade names or commercial products does not constitute their endorsement by the NCCGIA or North Carolina State Government.
FOR DIGITAL OR NON-DIGITAL DATA, Contact NC CGIA, Data Distribution to order data, Phone 919.733.2090 ... Email dataq@cgia.state.nc.us ... Web Page order form <http://www.cgia.state.nc.us/cgdb/index.html>
For current FORMAT/MEDIA INFORMATION, use a web browser: <http://www.cgia.state.nc.us/cost.html> or phone NC CGIA Data Distribution 919.733.2090
Data creation and large data analysis jobs contact Database Administration P:(919)733-2090. All data is available through standard ordering procedures on a cost recovery basis.
All formats supplied are created using ARC/INFO GIS software on Unix workstations. Other formats are available. Format compatibility is the user's responsibility. For more information on formats and media, use a web browser: FORMAT/MEDIA INFORMATION - <http://www.cgia.state.nc.us/cost.html>
(919) 733-2090 (voice)
(919) 715-0725 (FAX)
dataq@cgia.state.nc.us