USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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

Table 4-24M: Energy Intensity of Transit Motor Buses

Wednesday, November 21, 2012

Table 4-24M: Energy Intensity of Transit Motor Buses

Excel | CSV

  1960 1965 1970 1975 1980 1985 1990 1991 1992 1993 1994 1995 (R) 1996 (R) 1997 (R) 1998 (R) 1999 (R) 2000 (R) 2001 (R) 2002 (R) 2003 (R) 2004 (R) 2005 2006 2007 2008
Vehicle-kilometers (millions) (R) 2,537 (R) 2,460 2,268 2,456 2,699 2,998 3,428 3,487 3,505 3,556 3,479 3,514 2,692 2,744 2,841 2,931 2,993 3,079 3,077 2,997 2,976 2,961 2,956 2,995 3,050
Passenger-kilometers (millions) N N N N (R) 35,068 (R) 34,055 33,766 33,941 32,728 32,584 30,307 30,285 25,460 26,565 27,248 28,253 28,365 29,535 29,104 27,463 26,847 27,413 28,149 28,131 29,449
Energy consumed                                                  
Diesel fuel (million liters) 787 939 1,026 1,382 1,632 1,961 2,132 2,169 2,241 2,179 2,139 2,134 1,763 1,754 1,773 1,804 1,853 1,862 1,773 1,672 1,668 1,421 1,597 1,535 1,526
Compressed Natural Gas (million liters) N N N N N N N N N N N 38 38 67 103 126 159 193 246 296 323 351 413 402 421
Bio-diesel (million liters) N N N N N N N N N N N N N N N N N N 3 3 8 195 61 78 125
Liquefied natural gas (million liters) N N N N N N N N N N N 6 8 12 10 17 33 37 53 44 50 55 58 57 56
Gasoline (million liters) N N N N N N N N N N N 9 4 5 6 4 4 5 4 3 5 3 7 7 11
Other major fuelsa (million liters) N N N N N N N N N N N N 43 34 16 9 3 4 8 8 8 11 8 4 3
Powerb (million KWH) N N N N N N N N N N N N 0 0 1 1 1 1 3 1 2 1 1 1 1
Energy consumed, total (Billion kilojoules) N N N N N N N N N N N N 69,603 69,471 69,992 71,266 73,644 74,334 71,846 68,023 68,389 65,721 68,317 66,322 67,780
Diesel fuel 30,438 36,291 39,657 53,413 63,071 75,817 82,409 83,830 86,638 84,252 82,689 82,500 68,160 67,799 68,541 69,751 71,646 71,974 68,535 64,642 64,464 54,914 61,729 59,337 58,981
Compressed Natural Gas N N N N N N N N N N N 237 240 420 647 790 999 1,211 1,543 1,856 2,027 2,199 2,589 2,521 2,640
Bio-diesel N N N N N N N N N N N N N N N N N N 103 113 283 6,850 2,138 2,745 4,380
Liquefied natural gas N N N N N N N N N N N 152 200 289 230 392 781 875 1,253 1,049 1,178 1,295 1,381 1,354 1,330
Gasoline N N N N N N N N N N N 303 132 175 199 143 134 163 139 122 190 102 243 251 373
Other major fuelsa N N N N N N N N N N N N 867 786 368 182 73 101 246 225 226 349 223 101 65
Powerb N N N N N N N N N N N N 3 3 7 9 10 11 27 15 21 13 13 11 10
Energy intensity (kilojoules/passenger-kilometers) N N N N N N N N N N N N 2,734 2,615 2,569 2,522 2,596 2,517 2,469 2,477 2,547 2,397 2,427 2,358 2,302

KEY: N = data do not exist; R = revised.

a Before 2002, Other major fuels include liquefied petroleum gas, methanol, ethanol, and bunker fuel. From 2002 to 2008, Other major fuels include liquefied petroleum gas, methanol, ethanol, bunker fuel, kerosene, and grain additive.

b Power includes electric propulsion and electric battery.

NOTES

Data from 1996 and after are not comparable to the data for earlier years or to the data published in previous editions of the report due to different data sources used.

Data from 1996 and after are for those vehicles used for directly operated (DO) services only .

Energy consumed, total does not include the other types of energy identified in table 17 in the National Transit Database due to the lack of information on the unit of measurement for such data before 2008.

The following conversion rates were used:

Diesel =38,657.95 kilojoules/liter.

Compressed Natural Gas = 6,271.117 kilojoules/liter.

Bio-Diesel = 35,174.00 kilojoules/liter.

Liquefied natural gas = 23,635.15 kilojoules/liter.

Gasoline = 34,839.54 kilojoules/liter.

Liquefied petroleum gas = 25,446.80 kilojoules/liter.

Methanol = 18,005.07 kilojoules/liter.

Ethanol = 23,579.40 kilojoules/liter.

Bunker fuel = 41,723.83 kilojoules/liter.

Kerosene = 37,626.70 kilojoules/liter.

Grain additive = 33,696.80 kilojoules/liter.

Electricity 1KWH = 3,599.851 kilojoules, negating electrical system losses. To include approximate electrical system losses, multiply this conversion factor by 3.

1.609344 kilometers = 1 mile.

3.785412 liters = 1 gallon.

1 British thermal unit (Btu) = 1.055056 kilojoules.

SOURCES

1960-95: American Public Transportation Association, 2010 Public Transportation Fact Book Appendix A: Historical Tables (Washington, DC: Annual Issues), tables 2, 6, 30, 32 and similar tables in earlier editions, available at http://www.apta.com/resources/statistics/Pages/transitstats.aspx as of Aug 23, 2010.

1996-2008: U.S. Department of Transportation, Federal Transit Administration, National Transit Database, tables 17, 19, and similar tables in earlier editions, available at http://www.ntdprogram.gov/ntdprogram/data.htm as of Aug. 23, 2010.