U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
(Table VM-1 and VM-2 of the Roadway Extent, Characterisitcs and Performance Section of the annual Highway Statistics series)
Selected Household Survey Vehicle Miles of Travel related Information can be found within the 2001 Household Travel Survey - NHTS, and the earlier 1995 Nationwide Personal Transportation Survey - NPTS on the resource websites below.