Highway Vehicle Miles Traveled, U.S., Monthly: |
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Vehicle Miles Traveled |
Sep-14 |
Sep-15 |
|
Highway miles (millions) |
249,125 |
259,892 |
|
Percent change from same month previous year |
2.7% |
4.3% |
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Notes: 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 nationâs economic activity. |
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