NOTES: Data cover Class I
railroads only (see Glossary for definition). Average line-haul speed data for
2004 and 2005 are preliminary.
SOURCE: U.S.
Department of Transportation, Research and Innovative Technology
Administration, Bureau of Transportation Statistics, calculations using data
reported by Class I railroads to the Association of American Railroads for
posting at http://www.railroadpm.org/; and Surface Transportation Board (STB), Statistics of Class I Railroads in the United States, table
8, available at http://www.stb.dot.gov/, as
of May 2005.
