Motor vehicles, fuel consumption and travel data include light duty vehicles, buses, trucks and motorcycles.
For 2007-13, the methodology and data categories of the Highway Statistics series were updated, so the data from 1960-2006 are not comparable. In addition, this edition of table 4-9M is not comparable to editions from 2009 or earlier.
See tables 4-11, 4-12, 4-13, 4-14, and 4-15 for individual highway vehicles.
1 gallon = 3.785412 liters and 1 mile = 1.609344 kilometers.
KEY: R = revised.
1960-94: U.S. Department of Transportation, Federal Highway Administration, Highway Statistics Summary to 1995, tables VM-201A and MF-221, available at www.fhwa.dot.gov/policy/ohpi as of Feb. 16, 2010.
1995-2014: Ibid., Highway Statistics (Washington, DC: Annual Issues), table VM-1, available at http://www.fhwa.dot.gov/policyinformation/statistics.cfm as of May 5, 2016.
