State Boundaries: United States and Territories, 2012

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Abstract/Contents

Abstract
This polygon shapefile depicts state boundaries extending into the ocean with detailed shorelines, including all 50 states plus Puerto Rico, Washington D.C., American Samoa, the Commonwealth of the Northern Mariana Islands, Guam and the United States Virgin Islands. This data was created using TIGER/Line 2011 shapefile data gathered from ESRI's Geography Network. The individual county shapefiles were processed into Arc/Info coverages and then appended together to create complete state coverages. Office of the Assistant Secretary for Research and Technology Bureau of Transportation Statistics (OST-R/BTS) Hydrographic data was integrated to create detailed shorelines. The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from the United States Census Bureau's MAF/TIGER Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. States and equivalent entities are the primary governmental divisions of the United States. In addition to the fifty states, the Census Bureau treats the District of Columbia, Puerto Rico, and each of the Island Areas (American Samoa, the Commonwealth of the Northern Mariana Islands, Guam and the United States Virgin Islands) as the statistical equivalents of states for the purpose of data presentation. This layer is part of the 2014 National Transportation Atlas Database.
Purpose
The National Transportation Atlas Databases 2014 (NTAD2014) is a set of nationwide geographic datasets of transportation facilities, transportation networks, associated infrastructure and other political and administrative entities. These datasets include spatial information for transportation modal networks and intermodal terminals, as well as the re¬lated attribute information for these features. This data supports research, analysis, and decision-making across all transportation modes. It is most useful at the national level, but has major applications at regional, state and local scales throughout the transportation community. The data used to compile NTAD2014 was provided by our partners within the United States Department of Transportation (USDOT) and by other agencies throughout the United States Federal Government. These contributors are the actual data stewards and are ultimately responsible for the maintenance and accuracy of their data. This data was sourced from the information contained in the Census Master Address File/Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) database. The content of the MAF/TIGER database is undergoing continuous census data updates and is made available to the public through a variety of TIGER/Line® shapefiles.

Description

Type of resource cartographic, software, multimedia
Form Shapefile
Extent 51.268
Place Washington, D.C., US
Publisher United States. Bureau of Transportation Statistics
Date valid 2012
Publication date 2014
Edition state v. 7
Language English
Digital origin born digital
Map data Scale not given. ; W 179°10ʹ7ʺ--E 179°44ʹ55ʺ/N 71°23ʹ23ʺ--S 14°35ʹ59ʺ, Scale not given ; EPSG::4326

Creators/Contributors

Creator United States. Bureau of Transportation Statistics
Creator United States. Bureau of the Census. Geography Division

Subjects

Subject Administrative and political divisions
Subject Boundaries, State
Subject United States
Subject Washington (D.C.)
Subject United States Virgin Islands
Subject Puerto Rico
Subject American Samoa
Subject Northern Mariana Islands
Subject Guam
Subject 2012
Subject Boundaries
Subject Society
Genre Geospatial data
Genre Cartographic dataset

Bibliographic information

Supplemental information The BTS State Boundary Database contains TIGER 2011 geometry and attributes. To find out more about TIGER/Line files and other Census TIGER data base derived data sets visit http://www.census.gov/geo/www/tiger.
Location https://purl.stanford.edu/vt021tk4894

Access conditions

Use and reproduction
This item is in the public domain. There are no restrictions on use.
Copyright
This work is in the Public Domain, meaning that it is not subject to copyright.

Preferred citation

United States. Department of Transportation. Research and Innovative Technology Administration. (2014). State Boundaries: United States and Territories, 2012. National Transportation Atlas Database 2014. Available at: http://purl.stanford.edu/vt021tk4894.

Collection

National transportation atlas databases : NTAD

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