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The Hi-Lo Bi-Track System

[+] Author Affiliations
Brian T. Scales

Transportation Engineer, Canonsburg, PA

Paper No. RTD2004-66008, pp. 167-176; 10 pages
  • ASME/IEEE 2004 Joint Rail Conference
  • Joint Rail
  • Baltimore, Maryland, USA, April 6–8, 2004
  • Conference Sponsors: Rail Transportation Division
  • ISBN: 0-7918-4163-4
  • Copyright © 2004 by ASME


The Hi-Lo Bi-Track System is an innovative technology that provides appropriate superelevations on curves to suit both high-speed passenger trains and low-speed freight trains. Adoption of the Hi-Lo Bi-Track System would provide the following benefits: • Permit creation of high-speed lines for passenger trains over existing freight train rights-of-way without compromising performance of either train technology. • Provide improvement in typical train trip times due to reduced need for speed reduction at curves. • Provide savings in energy consumption due to less braking for curves and subsequent acceleration back to line speed. • Provide better performance then “tilting trains” in reducing typical train trip times. • Avoid high vertical and lateral track forces resulting from operation of “tilting trains.” • Applicable to high-speed mail and express freight trains in addition to high-speed passenger trains.

Copyright © 2004 by ASME



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