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Freight Facts and Figures 2013

Figure 3-9. Share of Highway Vehicle-Miles Traveled by Vehicle Type: 2011

Despite doubling over the past two decades, truck traffic remains a relatively small share of highway traffic as a whole. In 2011, commercial trucks accounted for about 9 percent of highway vehicle-miles traveled. Truck tractors hauling semitrailers and other truck combinations accounted for approximately 63 percent of commercial truck travel, while single-unit trucks with six or more tires accounted for the remainder.

Figure 3-9

Figure 3-9. Pie chart showing the breakout of the share of highway vehicle-miles traveled by vehicle type in 2011.

[PDF 13KB]

Data represented in the figure.

Table in Excel format

Vehicle Type 2011
Light-duty Vehicles1 2,646,641
Other2 32,283
Truck, single-unit 2-axle 6 more tires 103,515
Truck, combination 163,692

1Includes passenger cars, light trucks, vans and sport utility vehicles with a wheelbase equal to or less than 121 inches and large passenger cars, vans, pickup trucks, and sport utility vehicles with a wheelbase larger than 121 inches.

2Includes buses and motorcycles.


Based on a new methodology, FHWA revised its annual vehicle miles traveled, number of vehicles, and fuel economy data beginning with 2007. Information on the new methodology is available at Data in this figure should not be compared to those in pre-2011 editions of Freight Facts and Figures.


U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, DC: annual issues), table VM-1, available at as of September 2, 2013.


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