MASH test nos. 3-17 and 3-11 on a non-proprietary cable median barrier.

Details

• Creators:
  Bielenberg, Robert W. ; Rosenbaugh, Scott K. ; Faller, Ronald K. ; Humphrey, Brandt M. ; Schmidt, Tyler L. ; Lechtenberg, Karla A. ; Reid, John D.
• Corporate Creators:
  Midwest Roadside Safety Facility
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  Cables Evaluation Highway Safety Impact Tests Median Barriers
• Publication/ Report Number:
  TRP-03-303-15
• Resource Type:
  Tech Report
• Geographical Coverage:
  Nebraska
• Corporate Publisher:
  Nebraska. Dept. of Roads
• Abstract:
  The Midwest States Pooled Fund has been developing a new design for a non-proprietary high-tension cable median barrier. This new system incorporates four evenly spaced cables, Midwest Weak Posts (MWPs) spaced at 8 to 16 ft (2.4 to 4.9 m) intervals, and a bolted, tabbed bracket to attach the cables to the post. Full-scale crash testing was needed to evaluate the barrier’s safety performance. According to the proposed Manual for Assessing Safety Hardware (MASH) testing matrix for cable barriers installed within a median ditch, a series of eight full-scale tests are required to evaluate the safety performance of the system. Additionally, a ninth test is required to establish the working width for systems with variable post spacings. Three full-scale crash tests were performed on the cable barrier system for use anywhere within 6H:1V V-ditches. Test no. MWP-1 was conducted according to MASH test no. 3-17 and utilized a 1500A passenger car impacting the barrier at the slope break point. The vehicle was contained and redirected by the barrier, and the test was deemed acceptable. Test no. MWP-2 was conducted according to MASH test no. 3-11 and utilized a 2270P pickup truck impacting the barrier on level terrain. The vehicle was contained and redirected by the barrier, and the test was deemed acceptable. Test no. MWP-3 was also conducted with a 2270P vehicle according to MASH test no. 3-11. However, the post spacing was reduced from 16 ft (4.9 m), utilized during the first two tests, to 8 ft (2.4 m). After initially capturing the vehicle, three cables were eventually overridden as the vehicle was being redirected. Subsequently, the vehicle rolled and the test was deemed unacceptable.
• Format:
  PDF
• Funding:
  TPF-5(193) sup. 44;TPF-5(193) sup. 64
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:4b400cd57b1c517dab65f630b7b2921e2d37731cdcdf68c4f3f08f1c946a62f12e116becfbd23676b7524a86ff3c27af3303efb2ee09e3ee9de6d101e7c2db2b
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/29624/dot_29624_DS1.pdf
• File Type:
  [PDF - 65.69 MB ]