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U.S. Highway Vehicle-Miles Traveled


Monthly data, not seasonally adjusted

U.S. Highway Vehicle-Miles Traveled

Vehicle-miles traveled (VMT) are key data for highway planning and management, and a common measure of roadway use. Along with other data, VMT are often used in estimating congestion, air quality, and potential gas-tax revenues, and can provide a general measure of the level of the nation’s economic activity.

Vehicle-Miles Traveled Sep-11 Sep-12
Highway miles (millions) 240,654 237,065
Percent change from same month previous year -2.9 -1.5

NOTE: The current value is compared to the value from the same period in the previous year to account for seasonality.

SOURCE: U.S. Department of Transportation, Federal Highway Administration, Office of Highway Policy Information, Traffic Volume Trends, available at as of December 2012.