TABLE 4-7  Average Loaded U.S. Railcar Weight for Selected Commodities: 1992 and 2002,,,,,,,,
"Tons per carload
",,,,,,,,
,1992,2002,,,,,,
Farm products, 90.8 , 93.6 ,,,,,,
Coal, 99.4 , 110.8 ,,,,,,
Nonmetallic minerals, 91.9 , 95.9 ,,,,,,
Food and kindred products, 63.9 , 69.4 ,,,,,,
Chemicals and allied products, 82.4 , 83.9 ,,,,,,
Transportation equipment, 20.9 , 20.9 ,,,,,,
Miscellaneous mixed shipments, 17.0 , 14.6 ,,,,,,
"
NOTES: Miscellaneous mixed shipments is mostly intermodal traffic.  Some intermodal traffic is included in commodity-specific categories, as well.",,,,,,,,
"
SOURCES: 2002 data—Association of American Railroads, Railroad Facts 2003 (Washington, DC: 2003), pp. 25 and 29.  1992 data—U.S. Department of Transportation, Bureau of Transportation Statistics, calculations based on Association of American Railroads, Railroad Ten-Year Trends 1990–1999 (Washington, DC: 2000).",,,,,,,,