Office of Operations Freight Management and Operations

Freight Facts and Figures 2013

Figure 3-15. Major Truck Routes on the National Highway System: 2040

The number of NHS miles carrying large volumes and high percentages of trucks is forecast to increase dramatically by 2040. Segments with more than 8,500 trucks per day and where at least every fourth vehicle is a truck are forecast to reach 42,000 miles, an increase of more than 175 percent from 2011

Figure 3-15

Figure 3-15. U.S. map with projected figures for 2040 showing high volume, high percentage of truck routes between California cities, I-80 in Wyoming, much of I-40 and I-10 across the country, and most intercity highways in the East; high volume, low percentage of truck routes in Southern California, the Bay Area, Chicago, Texas, central Alabama, and North Carolina to Boston; and low volume, high percentage of truck routes throughout the Great Plains and the Far West.

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AADTT is average annual daily truck traffic and includes all freight-hauling and other trucks with six or more tires. AADT is average annual daily traffic and includes all motor vehicles. NHS mileage as of 2011, prior to MAP-21 system expansion.


U.S. Department of Transportation, Federal Highway Administration, Office of Freight Management and Operations, Freight Analysis Framework, version 3.4, 2013.


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