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).