CHARACTERIZATION OF RELATIVELY LARGE TRACK GEOMETRY VARIATIONS

An analysis of existing track geometry data is described from which the signatures of key track geometry variations related to severe track-train dynamic interaction are identified and quantified. Mathematical representations of these signatures are defined and presented. Track geometry descriptors used to monitor these key signatures are determined. Applications of these descriptors in terms of present track geometry measurement techniques are described. Statistical analysis of these descriptors is performed and the results are presented. Based on limited data preliminary results to quantify changes in these descriptors with time are presented.

• Record URL:
  • https://www.fra.dot.gov/eLib/details/L17836#p2_z25_gD_lRT_y1982
• Corporate Authors:

  ENSCO, Incorporated

  2560 Huntington Avenue
  Alexandria, VA  United States  22303

  Federal Railroad Administration

  Office of Research and Development, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Transportation Systems Center

  55 Broadway, Kendall Square
  Cambridge, MA  United States  02142
• Publication Date: 1982-3

Media Info

• Pagination: 144 p.

Subject/Index Terms

• TRT Terms: Data collection; Dynamic loads; Finite differences; Measurement; Probability density functions; Railroad rails; Railroad tracks; Railroad trains; Rolling contact; Standards; Statistical analysis; Structural design; Wheels
• Uncontrolled Terms: Dynamic response; Track geometry
• Subject Areas: Data and Information Technology; Maintenance and Preservation; Public Transportation; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00365085
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FRA/ORD-82/13 Final Rpt.
• Contract Numbers: DOT-TSC-1631
• Files: NTIS, TRIS, USDOT
• Created Date: Jun 30 1982 12:00AM