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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Energy and environment

Legacy ID
1556

Certificated Air Carrier Fuel Consumption and Travel (Metric)

KEY:  R = revised.

a  Aircraft are aircraft carrying passengers or cargo for hire under 14 CFR 121 (large aircraft-more than 30 seats) and 14 CFR 135 (small aircraft-30 seats or less). This definition is more encompassing than that in the Federal Aviation Administration (FAA) Aviation Forecast- jet aircraft, 60 seats or more carrying passengers or cargo for hire. Beginning in 1990, the number of aircraft is the monthly average reported in use for the last three months of the year. Prior to 1990, it was the number of aircraft reported in use...

Energy Consumption by Mode of Transportation (metric)

KEY: Btu = British thermal unit; N = data do not exist; R = revised; U = data are not available.

a Domestic operations only.

b Includes fuel used in air taxi operations, but not commuter operations. Data for 1996 are estimated using new information on no respondents and are therefore not comparable to earlier years. See the accuracy statement in the appendix for more detailed information. 

c Data from 2007 were calculated using a new methodology developed by FHWA. Data for these years are based on new categories and...

Fuel Consumption by Mode of Transportation (metric)

KEY: kWh = kilowatt-hour; N = data do not exist; R = revised, U = data are not available.

a Domestic operations only.

b Includes fuel used in air taxi operations, but not commuter operations. Data for 1996 are estimated using new information on no respondents and are therefore not comparable to earlier years. See the accuracy statement in the appendix for more detailed information.

c Data from 2007 were calculated using a new methodology developed by FHWA. Data for these years are based on new categories and are not...

Crude Oil and Petroleum Products Transported in the United States by Mode (Metric)

a Beginning with 2006 data, Pipeline data were taken from PHMSA F 7000-1-1. Previously, data were extracted from FERC Form No. 6, which included data for federally-regulated pipelines. For 2005, data for federally regulated Pipelines were estimated to include about 90 percent of the total national ton-miles, so the Pipeline statistics for that year were adjusted to include an additional 10 percent of ton-miles. From 1990 through 2004, the federally regulated estimate was 84 percent with a 16 percent addition for other Pipeline ton-miles.

b The large increase in Water carrier Ton-...

Energy Intensity of Transit Motor Buses (Metric)

KEY: KWH = Kilowatt hour; N = data do not exist.

a Before 2002, Other major fuels includes liquefied petroleum gas, methanol, ethanol, and bunker fuel. From 2002 - 13, Other major fuels includes liquefied petroleum gas, methanol, ethanol, bunker fuel, kerosene, and grain additive. After 2013, other major fuels includes liquefied petroleum gas, ethanol and hydrogen.

bPower includes electric propulsion and electric battery.

Average Fuel Efficiency of U.S. Light Duty Vehicles (metric)

KEY: CAFE = Corporate Average Fuel Economy; GVWR = gross vehicle weight rating; kmpl = kilometers per liter; R = revised; 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...