Phase II development of a non-proprietary, four-cable, high tension median barrier.

Details

• Creators:
  Schmidt, Jennifer D. ; Sicking, Dean L. ; Faller, Ronald K. ; Lechtenberg, Karla A. ; Bielenberg, Robert W. ; Reid, John D. ; Rosenbaugh, Scott K.
• Corporate Creators:
  Midwest Roadside Safety Facility
• Corporate Contributors:
  Nebraska. Dept. of Roads ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Median barriers
  • Medians
  • Tension
  • Rope, wire and cable
  • Cables
  • Guardrails
  • Crash tests
  • Acceptance tests
  • Highway safety
  • Ditches Highway safety
  More +
• Publication/ Report Number:
  TRP-03-253-12
• Resource Type:
  Tech Report
• Geographical Coverage:
  Nebraska
• Edition:
  Final report; 2010-2012.
• Corporate Publisher:
  Midwest Roadside Safety Facility
• Abstract:
  During the last decade, the use of cable median barriers has risen dramatically. Cable barriers are often utilized in depressed medians ; with widths ranging from 30 to 50 ft (9.1 to 15.2 m) and with fill slopes as steep as 4H:1V. A careful review of accident records has ; indicated that passenger vehicles do occasionally penetrate through the standard 3-cable median barrier and enter opposing traffic lanes. ; As a result, the Midwest States Pooled Fund Program sponsored a research and development project to improve the safety performance of ; existing, non-proprietary, cable median barriers. These safety improvements included increased cable spacing, increased cable height, the ; use of four cables, increased cable tension, and optimized cable attachment to posts. ; Two Test Level 3 crash tests were performed on a four-cable, high-tension median barrier placed in a 46-ft (14.0-m) wide, 4H:1V Vditch. ; All tests were conducted according to the safety performance guidelines provided in the Manual for Assessing Safety Hardware ; (MASH). The first test utilized an 1100C small car impacting the barrier located 27 ft (8.2 m) laterally away from the front slope break ; point. The vehicle was contained and redirected by the barrier and deemed acceptable according to the MASH guidelines. The second test ; utilized a 2270P pickup truck impacting the barrier placed on a downslope and 12 ft (3.7 m) laterally away from the front slope break ; point. The pickup truck overrode the system and subsequently rolled, thus the second crash test was deemed unacceptable according to ; the MASH guidelines.
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• Format:
  PDF
• Funding:
  TPF-5(091) Suppl #1
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24473/dot_24473_DS1.pdf
• File Type:
  [PDF - 44.60 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:ac90d18e0608c28e772c7fb643074f334b9ec6ee2414eebb20bd82d8c5f76c0d3e480ed3474915d97342bacaefc289f9ee0d8492e6fb3de203efeb19b7a7e60d