With the increase in traffic and the advent of six-axle diesel locomotives and 100-ton cars, CN has been experiencing some difficulty with conventional maintaining line and gage, in accelerated rail wear, and in corrugation. The new 'track structure test' encompasses the overall function of the structure rather than specific components. It involves continuous welded RE high silicon rail, fastened accurately to prestressed monolithic concrete ties that are restrained by well tamped and drained crushed rock ballast. The test site was selected to include heavy trains, six-axle locomotives, and downgrades and sharp curvature. The results are intended to provide guidance in writing an improved track specification. Total tonnage moved in 1971 amounted to 31 million gross tons. The ties were made in England. The fastening used is the Pandrol 601 A clip. Details of the installation process under traffic are given. Three different tie spacings were used.

  • Availability:
  • Corporate Authors:

    Murphy-Richter Publishing Company

    20 North Wacker Driver
    Chicago, IL  United States  60606
  • Publication Date: 1973-3

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00044010
  • Record Type: Publication
  • Source Agency: Progressive Railroading
  • Files: TRIS
  • Created Date: Jun 1 1976 12:00AM