Hazardous Materials Routes

Metadata Updated: November 13, 2020

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.

Access & Use Information

Public: This dataset is intended for public access and use. License: us-pd

Downloads & Resources

Dates

Metadata Created Date November 10, 2020
Metadata Updated Date November 13, 2020

Metadata Source

Harvested from DHS datajson source

Additional Metadata

Resource Type Dataset
Metadata Created Date November 10, 2020
Metadata Updated Date November 13, 2020
Publisher Under Secretary / Management
Unique Identifier Unknown
Maintainer
Identifier 2602
Data Last Modified 2018-07-03T04:00:00.000Z
Rights United States
Public Access Level public
Bureau Code 024:010
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
License http://www.usa.gov/publicdomain/label/1.0/
Program Code 024:000
Source Datajson Identifier True
Source Hash a90f632f2717aac5e4274f3d6fc473b01433bd86
Source Schema Version 1.1

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