BTS | Table 4-25. Energy Intensity of Class I Railroad (a) Freight Service

Table 4-25. Energy Intensity of Class I Railroad^a Freight Service

	1960	1965	1970	1975	1980	1985	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999
Revenue freight ton-miles (millions)	572,309	697,878	764,809	754,252	918,958	876,984	1,033,969	1,038,875	1,066,781	1,109,309	1,200,701	1,305,688	1,355,975	1,348,926	1,376,802	1,433,461
Car-miles (millions)	28,170	29,336	29,890	27,656	29,277	24,920	26,159	25,628	26,128	26,883	28,485	30,383	31,715	31,660	32,657	33,851
Tons per car load	44	49	55	61	67	68	67	66	66	64	63	65	67	63	64	63
Fuel consumed (million gallons)	3,463	3,592	3,545	3,657	3,904	3,110	3,115	2,906	3,005	3,088	3,334	3,480	3,579	3,575	3,583	3,715
Energy intensity (Btu/revenue freight ton-mile)	839	714	643	672	589	492	418	388	391	386	385	370	366	368	361	359
Energy intensity (Btu/car-mile)	17,051	16,983	16,450	18,341	18,495	17,310	16,516	15,727	15,952	15,932	16,234	15,886	15,652	15,662	15,218	15,222

^aClass I railroads are those that have operating revenues of $255 million or more.

KEY: Btu = British thermal unit.

NOTE: The heat equivalent factor used for Btu conversion is 138,700 Btu/gallon.

SOURCE: Association of American Railroads, Railroad Facts (Washington, DC: November 2000), pp. 34, 37, and 40.