Annually the Union Pacific is measuring and recording 11 track structure parameters for all of its 5,851 miles of mainline and 4,128 miles of branch line track. The vehicle is a self-propelled unit built to UP's specification by Plasser American Corp. at a cost of $350,000. The detection system is composed of three major elements: measuring sensors, transducers coupled with an electronic transmission system, and a recording and analyzing device. The car tests the entire mainline three or four times each year, covering 200 miles daily. Strip charts indicate where immediate corrections should be made and also assist in long-range planning for tie renewals, track surfacing and lining in the future.

  • Availability:
  • Corporate Authors:

    Murphy-Richter Publishing Company

    20 North Wacker Driver
    Chicago, IL  United States  60606
  • Publication Date: 1975-8

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Filing Info

  • Accession Number: 00099800
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 18 1976 12:00AM