Table 4-25,,,,,,,,,,,,,,,,
Energy Intensity of Class I Railroada 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"
a Class I railroads are those that have operating revenues of $255 million or more.,,,,,,,,,,,,,,,,
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KEY:  Btu = British thermal unit.,,,,,,,,,,,,,,,,
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"NOTE:  The heat equivalent factor used for Btu conversion is 138,700 Btu/gallon.",,,,,,,,,,,,,,,,
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"SOURCE:  Association of American Railroads, Railroad Facts (Washington, DC: November 2000), pp. 34, 37, and 40.",,,,,,,,,,,,,,,,
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