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National Transportation Statistics presents statistics on the U.S. transportation system, including its physical components, safety record, economic performance, the human and natural environment, and national security. This is a large PDF composed of more than 260 data...
KEY: CAFE = Corporate Average Fuel Economy; GVWR = gross vehicle weight rating; mpg = miles per gallon; U = data are not available.
(a) 1960-2006 data are for Passenger car and Other 2-axle, 4-tire vehicles, respectively. The data from 1960-2006 are not comparable to the data from 2007-15.
(b) From 1980 to 1994, Light duty vehicle, short wheel base (previously Passenger car) fuel efficiency includes motorcycles.
(c) Assumes 55% city and 45% highway-miles. The source calculated average miles per gallon for light-duty vehicles by taking the reciprocal of the sales-weighted...
Aircraft-kilometers include all four large certificated air-carrier groups (majors, nationals, large regionals, and medium regionals), scheduled and charter, passenger, and all-cargo. Fuel consumed includes majors, nationals, and large regionals, scheduled and charter, passenger, and all-cargo. ...
KEY: N = data do not exist; U = data are not available.
a Data from 2007 were calculated using a new methodology developed by FHWA. Data for these years are based on new categories and are not comparable to previous years. The new category Light duty vehicle, short wheel base replaces the old category Passenger car and includes passenger cars, light trucks, vans and sport utility vehicles with a wheelbase (WB) equal to or less than 121 inches. The new category Light duty vehicle, long wheel base replaces Other 2-axle, 4...
KEY: R = revised.
(a) Does not include aviation jet fuel.
(b) In 2015 Marine became Boating with unstated fourmula changes from the source.
(c) Includes state, county, and municipal use, industrial and commercial use, construction use, and miscellaneous.
KEY: Btu = British thermal unit; N = data does not exist; R = revised; U = data ar not available.
(a) Domestic operations only.
(b) Includes fuel used in air taxi operations, but not commuter operations. The values for energy consumption by general aviation in 2012 are estimated values.
(c) Data for 2007-12 were calculated using a new methodology developed by FHWA. Data for these years are based on new categories and are not comparable to previous years. The new category Light duty vehicle, short wheel base includes passenger cars, light trucks, vans and sport utility...
KEY: Btu = British thermal unit; N = data do not exist; U = data are not available.
aMotorcycle is included in Light duty vehicle, short wheel base (previously Passenger car) in 1960 and 1965.
b Energy Intensity (Btu/passenger-kilometer) is calculated by converting the fuel consumption in gallons to the energy equivalent Btu units and dividing by the passenger-kilometers. The heat equivalent factor used for Btu conversion is 125,000 Btus/gallon.
KEY: kWh = kilowatt hour; R = revised; U = data are not available.