THE EFFECT OF SHIFTING ERRORS WHEN CORRECTING TRACK IRREGULARITIES WITH A HEAVY TAMPING MACHINE

Track irregularities of ballasted tracks are usually improved by using a heavy tamping machine. When the machine corrects longer irregularities, information on the waveform of track irregularities is necessary. However, the correction with these data sometimes leads to degradation of the tracks. The causes are categorized into three patterns: error of position matching between the data on the waveform and the machine, influence of the shifting error at one point on subsequent shifting, and uncertainty of zero adjustment of the machine. These errors may reduce the usability of the correction with the external data and require that the probability of degrading track be excluded. However, it is not possible or necessary to exclude shifting errors completely. What is required is ensuring that errors are within the specified tolerance. This paper describes the theoretical influence and solutions of these factors.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1853128260
• Corporate Authors:

  WIT Press

  Ashurst Lodge
  Ashurst, Southampton  United Kingdom  SO40 7AA
• Authors:
  • Kamiyama, M
  • Furukawa, A
  • Yoshimure, A
• Conference:
  • Seventh International Conference on Computers in Railways. Computers in Railways VII
  • Location: Bologna, Italy
  • Date: 2000-9-11 to 2000-9-13
• Publication Date: 2000

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 95-104
• Monograph Title: COMPUTERS IN RAILWAYS VII
• Serial:
  • Publication of: WIT Press
  • Publisher: WIT Press
  • ISSN: 1462-6101

Subject/Index Terms

• TRT Terms: Ballast (Railroads); Countermeasures; Defects; Degradation failures; Errors; Machines; Positioning; Railroad tracks; Repairing; Tamping; Waveform analysis
• Subject Areas: Maintenance and Preservation; Public Transportation; Railroads; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00800694
• Record Type: Publication
• ISBN: 1853128260
• Contract Numbers: BRPR-CT97-D558, DG 12 HINS, KBN No. 9 T12C 045 1
• Files: TRIS
• Created Date: Oct 22 2000 12:00AM