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Freight Facts and Figures 2011

Table 3-6. Annual Vehicle Distance Traveled by Highway Category and Vehicle Type: 2009

Freight moving in combination trucks depends heavily on the Interstate System. Although only one-fourth of the distance traveled by all traffic is on the Interstate System, nearly one-half of combination-truck vehicle miles of travel is on the Interstate System.

Table in Excel format

  Combination Trucks Single-Unit Trucks1 Other Trucks and Vans2 All Passenger Vehicles3 Total, All Motor Vehicles
Interstate vehicle miles (millions) 79,118 26,640 7,574 603,503 716,836
Interstate percent 47.1 22.2 21.5 22.9 24.3
Non-Interstate vehicle miles (millions) 88,724 93,523 27,584 2,026,835 2,236,665
Non-Interstate percent 52.9 77.8 78.5 77.1 75.7
Total vehicle miles, all roadways (millions) 167,842 120,163 35,158 2,630,338 2,953,501

1Trucks on a single frame with at least two axles and six tires.

2Includes buses and motorcycles.

3Includes passenger cars, light trucks, vans and sport utility vehicles with a wheelbase equal to or less than 121 inches and large passenger cars, vans, light trucks, and sport utility vehicles with a wheelbase larger than 121 inches.


Based on a new methodology, FHWA revised its annual vehicle miles travelled, number of vehicles, and fuel economy data beginning with 2007. Information on the new methodology is available at Data in this table should not be compared to those in previous editions of Freight Facts and Figures. Numbers may not add to totals due to rounding.


U.S. Department of Transportation, Federal Highway Administration, Highway Statistics, Table VM-1, available at as of October 5, 2011.


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