Figure 4-2 Gross Domestic Product (GDP) and Highway Passenger Vehicle-Miles Traveled (VMT): 1990–2014
1 Highway passenger VMT includes light duty vehicles, motorcycles, and buses.
NOTE: VMT data are based on State highway agency estimates reported for the various functional systems and include rural and urban areas in the 50 States
and the District of Columbia.
SOURCES: GDP—U.S. Department of Commerce, Bureau of Economic Analysis, National Economic Accounts. Highway VMT—U.S.
Department of Transportation, Federal Highway Administration, Highway Statistics 2014 as cited in U.S. Department of Transportation,
Bureau of Transportation Statistics, National Transportation Statistics, tables 1-35 and 3-10, available at www.bts.gov as of February 2016.