Vertical Transient Track Displacement Measurements Using Non-Invasive Techniques

This report describes a non-invasive monitoring system that measures rail and tie displacements using high-speed video cameras and double-integration of acceleration time histories. The purpose of selecting these instruments is to develop a non-invasive instrumentation system that can monitor track performance under a range of environmental conditions. High-speed video camera have many advantages such as tracking multiple rail and tie locations with a single camera, not needing to be base-isolated, and providing a visual account of the loaded track. Three cameras are used to illustrate rapid changes in rail displacement along short sections of track. Accelerometers are capable of measuring tie displacements and have many advantages such as being able to function if the optical view is blocked, e.g., rain, snow covering, or center of tie, and to measure lateral displacements.

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  • Supplemental Notes:
    • This document was sponsored by the U.S. Department of Transportation, University Transportation Centers Program. This final report for NURail project NURail2016-UKY-R11 consists of three distinct documents, "Bridge Transition Trackbed Behavior Modifications Using Hand Tamping Techniques," "Well-Performing Railway Bridge Transitions-Design and Performance" and "Vertical Transient Track Displacement Measurements Using Non-invasive Techniques."
  • Corporate Authors:

    National University Rail Center (NURail)

    University of Illinois at Urbana-Champaign
    Department of Civil and Environmental Engineering, 205 N. Mathews Avenue
    Urbana, IL  United States  61801

    Research and Innovative Technology Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Wilk, Stephen T
    • Stark, Timothy D
    • Rose, Jerry G
  • Publication Date: 2016-3-10


  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Figures; Photos; References; Tables;
  • Pagination: 22p

Subject/Index Terms

Filing Info

  • Accession Number: 01599170
  • Record Type: Publication
  • Report/Paper Numbers: NURail2016-UKY-R11
  • Contract Numbers: DTRT13-G-UTC52
  • Created Date: Apr 27 2016 10:32AM