North American railways are evaluating the economics of increasing car capacity from a nominal 100 tons (263,000 lb gross) to 125,000 tons (315,000 lb gross). The anticipated benefits of increased payload per car can be substantial, providing the incremental costs to track and equipment maintenance are not excessive. This report contains a review of available maintenance data for two Canadian iron ore railways that hauled loads greater than 100 tons on part of their systems for a number of years. The objective was to determine the effects of the heavy axle load operations. The data did not provide the level of detail necessary to fully isolate the effects of heavy axle loads. However, it did provide some indication of the impacts and the data may be useful as validation points for theoretical models of wear and defect sensitivities to axle load.

  • Availability:
  • Supplemental Notes:
    • Published December 1990/Revised September 1991.
  • Corporate Authors:

    Queen's University, Ontario

    Canadian Institute of Guided Ground Transport
    Kingston, Ontario  Canada  K7L 3N6
  • Authors:
    • English, G W
    • Hazell, A B
    • Igwemezie, J O
  • Publication Date: 1991-9

Media Info

  • Features: Figures; Tables;
  • Pagination: 23 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00621715
  • Record Type: Publication
  • ISBN: 0 88911 097 2
  • Report/Paper Numbers: CIGGT Rept No. 90-15, CIGGT File PRO-951
  • Files: TRIS
  • Created Date: Apr 30 1992 12:00AM