Preparation of rumble strips prior to overlayment.

Details

• Creators:
  Boisvert, Denis M.
• Corporate Creators:
  New Hampshire. Dept. of Transportation
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Rumble strips
  • Bituminous overlays
  • Hot mix asphalt
  • Asphalt pavements
  • Milling
  • Surface preparation
  • Pavements, Asphalt
  • Pavements, Bituminous--Overlays
  • Rumble strips
  • Surface preparation
• Publication/ Report Number:
  FHWA-NH-RD-13733V
• Resource Type:
  Tech Report
• Geographical Coverage:
  New Hampshire
• Edition:
  Final report.
• Corporate Publisher:
  New Hampshire Department of Transportation
• Abstract:
  The use of rumble strips in pavement to reduce run-off-road accidents is relatively new. In New Hampshire, these installations began in the mid to ; late 1990s. The New Hampshire Department of Transportation performed its first overlay of rumble strips in Nashua on its Central Turnpike during ; the 2003 construction season. The rumbles immediately reflected through the one-inch overlay, raising concerns over whether these features ; should receive special preparation. ; A national materials list-serve was used to solicit the practices of other state and provincial agencies. Eighteen respondents indicated a range of ; opinion from grinding the strip and shimming before paving, to doing nothing provided the strip is less than a ½-inch deep and the overlay is more ; than 4 inches. The opinions appeared to be based on general paving experience rather than knowledge about this specific condition. An additional ; 17 respondents either had no opinion, or did not install rumble strips. We concluded that there was no conventional method for overlaying rumble ; strips. ; This research project was launched with the objective of developing appropriate techniques, sequences and/or options to perform the preparation ; and overlay operation successfully and economically. Rumble strip pavement performance within the study area demonstrated that the simplest ; and least costly method produced a durable pavement and replacement rumble strip, but other problems related to thin lift overlays during ; subsequent paving seasons eventually lead to a specification requiring the preparation treatment needing the greatest effort. ; For the 2010 season, NHDOT elected to require that all rumbles be milled and inlayed prior to placement of the overlay. The inlay technique has ; been successfully used without overlay for removal of rumble strips to create temporary traffic detours. ; At the time of this report, contractors have developed the tools and techniques needed to install the 20-inch wide inlay with reasonable efficiency, ; such that it is not the laborious, hand-work operation that it was during the test site construction in 2005. A new bid item has been added to the ; construction contracts that provide for an intermediate bid price that is neither full-lane machine method, nor high cost handwork. The item includes ; the rumble milling and replacement inlay.
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• Format:
  PDF
• Funding:
  13733V, X-A000(385)
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/25750/dot_25750_DS1.pdf
• File Type:
  [PDF - 815.92 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:93f956f01ef66a7b82f3324d5f24a3af13da58c3f988c28675dd98df7ec2f04e4c3cc27993aaca0558cb795de668ceb1047f17c4509981e5eac2001640c69d49