Improvements in BTS Estimation of Ton-Miles

Ton-miles (one ton of freight shipped one mile) is the primary physical measure of freight transportation output. This paper describes improved measurements of ton-miles for air, truck, rail, water, and pipeline modes. Each modal measure contains a discussion of the data sources used and methodology employed, presents a comparison with other well-known measures for reference purposes, and discusses the limitations of the data used. The resulting measures provide more comprehensive and more reliable coverage of transportation activity than do existing measures, especially with respect to trucking and natural gas pipelines.


  • English

Media Info

  • Media Type: Print
  • Pagination: 17p

Subject/Index Terms

Filing Info

  • Accession Number: 01150332
  • Record Type: Publication
  • Files: NTL, TRIS, USDOT
  • Created Date: Feb 5 2010 2:10PM