Track Performance in Tunnels and Transitions with Under Tie Pads and Under Ballast Mats [Research Results]

Details

• Creators:
  Stuart, Cameron ; Riding, Kyle A
• Corporate Creators:
  United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development and Technology
• Corporate Contributors:
  University of Florida. Dept. of Civil and Coastal Engineering ; CSX Transportation (Firm)
• Subject/TRT Terms:
  • Tie pads
  • Ballast mats
  • Railroad tracks
  • Railroad ties Under tie pads
  • under ballast mats
  • transition areas
• Publication/ Report Number:
  RR 22-13
• Resource Type:
  Brief
• Geographical Coverage:
  United States
• Edition:
  Research Results
• Contracting Officer:
  Stuart, Cameron
• Corporate Publisher:
  United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development, and Technology
• Abstract:
  Railroads have begun to use under tie pads and under ballast mats in rail track construction to better distribute train loads, reduce the track modulus, and increase the tie-to-ballast contact area. Many tunnels, bridges, and track locations with a shallow ballast layer are strong candidates for under tie pads and under ballast mats. This report refers to under tie pads as UTP in the table and figures and as pad(s) in the text. Similarly, the report refers to under ballast mats as UBM in the table and figures and as mat in the text.
• Format:
  PDF
• Funding:
  693JJ618C000001
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/63299/dot_63299_DS1.pdf
• File Type:
  [PDF - 523.00 KB]
• Collection(s):
  Federal Railroad Administration
• Main Document Checksum:
  urn:sha-512:7dc03251a6694354eca8265acd74dd45cb1ab199ac9d8ac357d771d9d99e001a06b188e38b8ebdca5045a7155f866ef889e83dc751758a6ab02c247fb6408ce4