Analysis of existing work-zone devices with MASH safety performance criteria.

Details

• Creators:
  Schmidt, J.D. ; Sicking, D.L. ; Lechtenberg, K.A. ; Faller, R.K. ; Holloway, J.C.
• Corporate Creators:
  Midwest Roadside Safety Facility
• Corporate Contributors:
  Mid-America Transportation Center ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Work zone traffic control
  • Sign supports
  • Highway safety
  • Crashworthiness
  • Impact tests
  • Passenger cars
  • Pickup trucks
• Publication/ Report Number:
  TRP-03-225-10
• Resource Type:
  Tech Report
• Geographical Coverage:
  Iowa
• Corporate Publisher:
  Iowa State University. Institute for Transportation
• NTL Classification:
  NTL-SAFETY AND SECURITY-Highway Safety ; NTL-SAFETY AND SECURITY-Accidents ; NTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Control Devices
• Abstract:
  Crashworthy, work-zone, portable sign support systems accepted under NCHRP Report No. 350 were analyzed to ; predict their safety peformance according to the TL-3 MASH evaluation criteria. An analysis was conducted to determine ; which hardware parameters of sign support systems would likely contribute to the safety performance with MASH. ; The acuracy of the method was evaluated through full-scale crash testing. Four full-scale crash tests were ; conducted with a pickup truck. Two tall-mounted, sign support systems with aluminum sign panels failed the MASH ; criteria due to windshield penetration. One low-mounted system with a vinyl, roll-up sign panel failed the MASH criteria ; due to windshield and floorboard penetration. Another low-mounted system with an aluminum sign panel successfully met ; the MASH criteria. Four full-scale crash tests were conducted with a small passenger car. The low-mounted tripod system ; with an aluminum sign panel failed the MASH criteria due to windshield penetration. One low-mounted system with ; aluminum sign panel failed the MASH criteria due to excessive windshield deformation, and another similar system passed ; the MASH criteria. The low-mounted system with a vinyl, roll-up sign panel successfully met the MASH criteria. ; Hardware parameters of work-zone sign support systems that were determined to be important for failure with ; MASH include sign panel material, the height to the top of the mast, the presence of flags, sign-locking mechanism, base ; layout and system orientation. Flowcharts were provided to assist manufacturers when designing new sign support systems.
  More +
• Format:
  PDF
• Funding:
  SWZDI Contract No. 11533 ; MATC TRB RiP No. 17141
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/26350/dot_26350_DS1.pdf
• File Type:
  [PDF - 39.88 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha256:349ac8d39f9aecea844c2dd9be929112bd3f1af36563fc284e4c6815303694b5