EarthWorks Geospatial Catalog

United States Hazardous Material Routes, 2013

Author(s)
, , and
Description
The Federal Motor Carrier Safety Administration (FMCSA) Hazardous Material Routes were developed using the 2004 First Edition TIGER/Line files. The routes are described in the National Hazardous Material Route Registry (NMHRR). The on-line NMHRR linkage is http://hazmat.fmcsa.dot.gov/nhmrr/index.asp With the exception of 13 features that were not identified with the Tiger/Lines, Hazmat routes were created by extracting the TIGER/Line segments that corresponded to each individual route. Hazmat routes in the NTAD, are organized into 3 database files, hazmat.shp, hmroutes.dbf, and hmstcnty.dbf. Each record in each database represents a unique Tiger/Line segment. These Tiger/Line segments are grouped into routes identified as character strings in the ROUTE_ID field in the hmroutes.dbf table. The route name appearing in the ROUTE_ID is assigned by FMCSA and is unique for each State [this sentence could be deleted - it doesn't add a lot to it]. The hmstcnty.dbf table allows the user to select routes by State and County. A single shapefile, called hazmat.shp, represents geometry for all routes in the United States.
Publisher
Research and Innovative Technology Administration/Bureau of Transportation Statistics
Collection
National Transportation Atlas Databases (NTAD) 2013 and FMCSA Hazardous Material Routes
Place(s)
United States
Subject(s)
Boundaries
Year
2012 and 2007
Held by
Columbia
Attribute Value
Click on map to inspect values