Railroad Track Irregularities Position Accuracy Assessments Using Low-Cost Sensors on a Hi-Rail Vehicle

Regular maintenance of railroad tracks is not only essential for the proper functioning of the railway, but also significantly improves ride quality, reduces track damage, and increases track life. Deviations from the designed track geometry can result in poor ride quality and possible derailments. This research investigates the potential use of low-cost sensors aboard hi-rail vehicle to monitor automatically and continuously for inertial events caused by irregular track geometry. However, the GPS receivers of low-cost sensors do not always provide reliable position information, mostly due to signal occlusion, multipath interference, and low update rates. This study introduces a signal processing and statistical method to estimate the position of peak inertial events from multiple traversals and furthermore, the study characterizes and validates its accuracy by comparing the estimated positions of detected irregularities with the actual positions of irregularities that the railroad inspector observed.


  • English

Media Info

  • Media Type: Web
  • Pagination: pp 458-465
  • Monograph Title: International Conference on Transportation and Development 2019: Innovation and Sustainability in Smart Mobility and Smart Cities

Subject/Index Terms

Filing Info

  • Accession Number: 01731353
  • Record Type: Publication
  • ISBN: 9780784482582
  • Files: TRIS, ASCE
  • Created Date: Aug 28 2019 3:01PM