The rideability of a deflected bridge approach slab : research project capsule.

Details

• Alternative Title:
  LTRC Project 02-2GT continuation : phase II
• Creators:
  Martinez, Mark
• Corporate Creators:
  Louisiana Transportation Research Center
• Corporate Contributors:
  Louisiana. Dept. of Transportation and Development ; Louisiana State University (Baton Rouge, La.)
• Subject/TRT Terms:
  • Pavement layers
  • Surface course (Pavements)
  • Bridge approaches
  • Bridges
  • Bridge members
  • Surface roughness--Research
  • Bridge approaches
• Publication/ Report Number:
  11-3P
• Resource Type:
  Tech Report
• Geographical Coverage:
  Louisiana
• Edition:
  Research project capsule.
• Corporate Publisher:
  Louisiana Transportation Research Center
• Abstract:
  The Localized Roughness Index (LRI) is a parameter that was developed at the Louisiana ; Transportation Research Center (LTRC) to quantify localized pavement distresses, such as ; pavement surface dips and bumps, concrete slab joint faulting, bridge-end bumps, potholes ; and so forth (since there is currently no confi rmed method available that does this). LRI ; quantifi es localized pavement distresses with respect to the ride comfort of drivers by ; examining vehicular response through accelerometer outputs that high-speed profi lers ; provide. However, this approach has signifi cant shortcomings that relate to transportability ; issues. It has not yet been determined if the vehicular-response-based LRI can be made ; repeatable from vehicle to vehicle (diff ering suspension systems produce diff ering rides over ; the same profi le and therefore diff ering LRI indexes). Transportability has been recognized ; as a major challenge for a number of decades, and it is widely known that it would be ; exceedingly diffi cult to cost-eff ectively address the issue with current technology.
  More +
• Format:
  PDF
• Funding:
  02-2GT
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23330/dot_23330_DS1.pdf
• File Type:
  [PDF - 149.48 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:46eadf2eaa91aaef32881f6d3f37f67ee82cdaafb8f68b1de355a5fc03f9fbda28daedf39bcdb3e321c96c35b5d2c92a24f1dd0f4fcbf0421fc1307158472f47