Tons per carload
|Food and kindred products||63.5||69.1|
|Chemicals and allied products||83.4||84.2|
|Miscellaneous mixed shipments||16.8||14.5|
NOTES: Miscellaneous mixed shipments is mostly intermodal traffic. Some intermodal traffic is included in commodity-specific categories as well.
SOURCES: 2003—Association of American Railroads (AAR), Railroad Facts 2004 (Washington, DC: 2004), pp. 25 and 29. 1993—U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, calculations based on AAR, Railroad Ten-Year Trends 1990-1999 (Washington, DC: 2000).