TIGER/Line Shapefile, 2012, econ nation, U.S., Economic Census Metropolitan Division National Shapefile
Dataset Identification:
Resource Abstract:
The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information
from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER)
Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line
shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation Metropolitan
Divisions subdivide a Metropolitan Statistical Area containing a single core urban area that has a population of at least
2.5 million to form smaller groupings of counties or equivalent entities. Not all Metropolitan Statistical Areas with urban
areas of this size will contain Metropolitan Divisions. Metropolitan Division are defined by the Office of Management and
Budget (OMB) and consist of one or more main counties or equivalent entities that represent an employment center or centers,
plus adjacent counties associated with the main county or counties through commuting ties. Because Metropolitan Divisions
represent subdivisions of larger Metropolitan Statistical Areas, it is not appropriate to rank or compare Metropolitan Divisions
with Metropolitan and Micropolitan Statistical Areas. Economic Census Metropolitan Divisions are similar to current Metropolitan
Divisions, which are those that the OMB announced and published in February 2013.
Citation
Title TIGER/Line Shapefile, 2012, econ nation, U.S., Economic Census Metropolitan Division National Shapefile
Title ANSI INCITS 38:2009 (Formerly FIPS 5-2), ANSI INCITS 31:2009 (Formerly FIPS 6-4),ANSI INCITS 454:2009 (Formerly FIPS 8-6),
ANSI INCITS 455:2009(Formerly FIPS 9-1), ANSI INCITS 446:2008(Geographic Names Information System (GNIS))
other Citation Details
Cinergi keyword enhanced at Fri Nov 11 13:34:34 UTC 2016
purpose:
In order for others to use the information in the Census MAF/TIGER database in a geographic information system (GIS) or for
other geographic applications, the Census Bureau releases to the public extracts of the database in the form of TIGER/Line
Shapefiles.
Resource language:
eng
Character set encoding of resource:
8859part1
Resource Maintenance Information
maintenance or update frequency:
notPlanned
Constraints on resource usage:
Legal Constraints
Access Constraints
otherRestrictions
use constraint:
otherRestrictions
Other constraints
Access Constraints: None
Other constraints
Use Constraints:The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks
of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given
to the U.S. Census Bureau as the source. The boundary information in the TIGER/Line Shapefiles are for statistical data collection
and tabulation purposes only; their depiction and designation for statistical purposes does not constitute a determination
of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.Coordinates in
the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great
as the six decimal places suggest.
Spatial representation type code:
vector
Processing environment:
The TIGER/Line shapefiles contain geographic data only and do not include display mapping software or statistical data. For
information on how to use the TIGER/Line shapefile data with specific software package users shall contact the company that
produced the software.
description TIGER/Line Shapefiles are extracted from the Census MAF/TIGER database by nation, state, county, and entity. Census MAF/TIGER
data for all of the aforementioned geographic entities are then distributed among the shapefiles each containing attributes
for line, polygon, or landmark geographic data.
source
source description
online
source citation
Title MAF/TIGER
revision Date
2012
Completeness Commission
Completeness Omission
evaluation Method Description
Data completeness of the TIGER/Line Shapefiles reflects the contents of the Census MAF/TIGER database at the time the TIGER/Line
Shapefiles were created.
ConceptualConsistency
measure Description
The Census Bureau performed automated tests to ensure logical consistency and limits of shapefiles. Segments making up the
outer and inner boundaries of a polygon tie end-to-end to completely enclose the area. All polygons are tested for closure.
The Census Bureau uses its internally developed geographic update system to enhance and modify spatial and attribute data
in the Census MAF/TIGER database. Standard geographic codes, such as FIPS codes for states, counties, municipalities, county
subdivisions, places, American Indian/Alaska Native/Native Hawaiian areas, and congressional districts are used when encoding
spatial entities. The Census Bureau performed spatial data tests for logical consistency of the codes during the compilation
of the original Census MAF/TIGER database files. Most of the codes for geographic entities except states, counties, urban
areas, Core Based Statistical Areas (CBSAs), American Indian Areas (AIAs), and congressional districts were provided to the
Census Bureau by the USGS, the agency responsible for maintaining the Geographic Names Information System (GNIS). Feature
attribute information has been examined but has not been fully tested for consistency. For the TIGER/Line Shapefiles, the
Point and Vector Object Count for the G-polygon SDTS Point and Vector Object Type reflects the number of records in the shapefile
attribute table. For multi-polygon features, only one attribute record exists for each multi-polygon rather than one attribute
record per individual G-polygon component of the multi-polygon feature. TIGER/Line Shapefile multi-polygons are an exception
to the G-polygon object type classification. Therefore, when multi-polygons exist in a shapefile, the object count will be
less than the actual number of G-polygons.
fees The online copy of the TIGER/Line Shapefiles may be accessed without charge.
Ordering Instructions
To obtain more information about ordering TIGER/Line Shapefiles visit http://www.census.gov/geo/www/tiger
Format
Format name TGRSHP (compressed)
Format version
file Decompression Technique
The TIGER/Line shapefiles contain geographic data only and do not include display mapping software or statistical data. For
information on how to use the TIGER/Line shapefile data with specific software package users shall contact the company that
produced the software.