FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION
VERSION 2004
TITLE: 108th CONGRESSIONAL DISTRICTS
Geodataset Name: CONGRESSDISTRICTS108 Geodataset Type: SHAPE Geodataset Feature: POLYGON
GENERAL DESCRIPTION:
This dataset contains 2003 Congress Districts 108 Information for the State of Florida. The 108th Congressional District Boundaries data set contains geographic information for the political entities of the 108th Congressional districts.
DATA SOURCE(S): Bureau of Transportation Statistics (BTS) SCALE OF ORIGINAL SOURCE MAPS: 1:100,000 DATE OF AUTOMATION OR SOURCE: Source 2003 GEODATASET EXTENT: State of FloridaFEATURE ATTRIBUTE TABLES:
Datafile Name: CONGRESSDISTRICT108.DBF ITEM NAME WIDTH TYPE PRECISION Shape 8 SHAPEPOLY 0 District 2 CHARACTER 0 Lsad_ 50 CHARACTER 0 Name 25 CHARACTER 0 Party 1 CHARACTER 0 Fips 2 CHARACTER 0 State 2 CHARACTER 0 Descript 2 CHARACTER 0
FEATURE ATTRIBUTE TABLES CODES AND VALUES:
ITEM ITEM DESCRIPTION
FID Internal feature number.
Shape Data attribute inherent to the ESRI shapefile format,
which defines the data as a point, polyline, or polygon.
DISTRICT Congressional District Code
LSAD_ Type of the congressional district
NAME Name the congress person that represents the congressional
district
PARTY The party affiliation
D - Democrat
R - Republican
I - Independent
FIPS State FIPS code
STATE US Postal Service State Abbreviatio
DESCRIPT Field added by FGDL based on DISTRICT.
USER NOTES:
This dataset contains informatin on congressional districts from the U.S. Department of Transportation, Bureau of Transportation Statistics (BTS), National Transportation Atlas Database (NTAD) 2003. The 108th Congressional District Boundaries data set contains geographic information for the political entities of the 108th Congressional districts. The data provide users with information about the locations of congressional districts, primarily for national planning applications. All node-link and polygon topological relationships were created and verified using ARC/INFO a Geographic Information System. The unique identifiers were verified using ARC/INFO, (The data was then converted to a shapefile format.) The Congressional District data set was created from TIGER/Line data having a nominal scale of 1:100,000. Individual files for the Congressional Districts in the state of Florida were merged into a single data set using ARC/INFO. After completing topological and attribute verification using ARC/INFO, the data was converted into shapefile format. Download the shapefile from U.S. Bureau of the Census (BOC). Download congressional district information from (http://congress.techpolitics.org/houseofreps.htm ) and join the spatial with the attribute data. Used ArcGIS for topological and attribute verification. A note concerning data scale: Scale is an important factor in data usage. Certain scale datasets are not suitable for some project, analysis, or modelling purposes. Please be sure you are using the best available data. 1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries. 1:100000 scale datasets are recommended for projects that are at the multicounty or regional level. 1:250000 scale datasets are recommended for projects that are at the regional or state level or larger. Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analyses. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our web pages at: http://www.geoplan.ufl.edu/education.html
FGDL QUALITY ASSURANCE STATUS:
Process Steps for NTAD 2003 Congressional District 108 Locations: -Congressional District locations were obtained from the CD-ROM National Transportation Atlas Database (NTAD) 2003 (A Collection of Spatial Data for Use in GIS-based Applications) BTS-03-04. -GeoPlan extracted this data in shapefile format and removed facilities not located in Florida. -The shapefile was reprojected from WGS_1984 Decimal Degrees to the FGDL Albers HPGN map projection. (See "Map Projection Parameters" below)
REFERENCES:
Bureau of Transportation Statistics (BTS) http://www.bts.gov/gis
DATA LINEAGE SUMMARY:
Congressional District locations were obtained from the CD-ROM National Transportation Atlas Database (NTAD) 2003 (A Collection of Spatial Data for Use in GIS-based Applications) BTS-03-04. GeoPlan extracted this data in shapefile format and removed facilities not located in Florida. The shapefile was reprojected from WGS_1984 Decimal Degrees to the FGDL Albers HPGN map projection. (See "Map Projection Parameters" below)
MAP PROJECTION PARAMETERS:
Projection ALBERS Datum HPGN Units METERS Spheroid GRS1980 1st Standard Parallel 24 0 0.000 2nd Standard Parallel 31 30 0.000 Central Meridian -84 00 0.000 Latitude of Projection's Origin 24 0 0.000 False Easting (meters) 400000.00000 False Northing (meters) 0.00000
DATA SOURCES CONTACT(S):
Name: Bureau of Transportation Statistics (BTS) Web site: http://www.bts.gov/gis/ Address: 400 Seventh Street, S.W. Address: Bureau of Transportation Statistics (BTS) City: Washington State_or_Province: DC Postal_Code: 20590 Country: USA Contact Voice Telephone: 202-366-DATA Contact Facsimile Telephone: 202-366-3640 Contact Electronic Mail Address: answers@bts.go
FGDL CONTACT:
Name: Florida Geographic Data Library
Abbr. Name: FGDL
Address: Florida Geographic Data Library
431 Architecture
PO Box 11570
Gainesville, FL 32611-5706
Web site: http://www.fgdl.org
Contact FGDL
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FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html
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