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Major Truck Routes on the National Highway System: 2015

Notes: 

The Freight Analysis Framework (FAF) is based in large part on the results from the Commodity Flow Survey (CFS) last administered in 2012. Average annual daily truck traffic (AADTT) includes all freight-hauling and other trucks with six or more tires and includes all motor vehicles.

Source: 

U.S. Department of Transportation, Bureau of Transportation Statistics and Federal Highway Administration, Freight Analysis Framework, version 4.5, 2019.

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