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  • Added 15 Sep 2022

The National Network dataset is as of December 22, 2020 and is from the Federal Highway Administration (FHWA) along with the Bureau of Transportation Statistics (BTS), and part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics’ (BTS') National Transportation Atlas Database (NTAD). The National Network was authorized by the Surface Transportation Assistance Act of 1982 (P.L. 97-424) and specified in the U.S. Code of Federal Regulations (23 CFR 658) to require states to allow conventional combinations on "the Interstate System and those portions of the Federal-aid Primary System serving to link principal cities and densely developed portions of the states on high volume routes utilized extensively by large vehicles for interstate commerce which do not have any unusual characteristics causing current or anticipated safety problems. “The National Network (NN) includes almost all of the Interstate Highway System and other, specified non-Interstate highways. The network comprises more than 200,000 miles of highways. The National Network supports interstate commerce by regulating the size of trucks. This file is a geospatial representation of the National Network as described in 23 CFR 658 Appendix A and should not be interpreted as the official National Network and should not be used for truck size and weight enforcement purposes or for navigation.

Information

CategoryTransportation > Roads & Highways
Tagshighway, dot, transportation
Copyright Copyright may apply. Please check the source for more information.
RegionsNorth America

Technical Details

Layer ID 110460
Data type Vector linestring
Feature count 478999
Attributes ID, VERSION, YEAR, STFIPS, CTFIPS, ROUTEID, BEGINPOINT, ENDPOINT, SIGN1, SIGNT1, SIGNN1, LNAME, NN, FCLASS, FACILITYT, OWNERSHIP, URBANCODE, AADT, AADT_COM, AADT_SINGL, FUT_AADT, FUT_YEAR, THROUGH_LA, Shape_Length
Services Vector Query API, Web Feature Service (WFS)

History

Sourcegeo.dot.gov
Added 15 Sep 2022 ago
Last checked 15 Sep 2022 ago
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