MASH test 3-37 of the TxDOT 31-inch W-beam downstream anchor terminal.

Details

• Alternative Title:
  Project title: Roadside safety device crash testing program
• Creators:
  Arrington, Dusty R. ; Bligh, Roger P. ; Ivev, Don L.
• Corporate Creators:
  Texas Transportation Institute
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Bridge railings
  • Bridge superstructures
  • Impact tests
  • Mechanical tests
  • Guardrails
  • Transportation safety
  • Highway safety
  • Anchors (Structural connectors)
  • Bridge railings--Crash tests--Texas
• Publication/ Report Number:
  FHWA/TX-12/9-1002-6 ; Test Report No. 9-1002-6
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Edition:
  Test report; Sept. 2009¿Aug. 2011.
• Corporate Publisher:
  Texas Transportation Institute
• Abstract:
  The objective of this study was to develop a suitable replacement for the downstream “turndown” ; guardrail anchor system. The “turndown” guardrail anchor system does not meet mandated test requirements ; under MASH for upstream anchor application terminals; however, it does meet downstream requirements for ; previous crash testing standards. Due to its low cost, TxDOT has used this anchor system with 27-inch ; guardrail in downstream applications when it is outside of the clear zone of opposing traffic. With the new ; federally mandated increase in guardrail height, TxDOT is considering increasing its standard guardrail ; height to 31 inches. This increase in height increases the risk of a small sedan wedging under the guardrail ; and snagging on the “turndown” anchor system. The current “turndown” anchor design does not include a ; releasable connection detail for reverse direction impacts. For this reason, TxDOT has decided to develop a ; new downstream anchor system rather than test the 31-inch configuration of the “turndown” anchor system. ; This anchor system utilized standard parts found in the AASHTO-ARTBA-AGC Guide to ; Standardized Highway Barrier Hardware when possible. This terminal is nonproprietary to allow for ; competitive bidding to reduce costs. As this system will be developed for the sole purpose of anchoring the ; downstream end of guardrail system, the testing matrix will include the optional crash test (3-37) found in ; MASH for testing terminals in a reverse direction impact condition.
  More +
• Format:
  PDF
• Funding:
  Project 9-1002
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23782/dot_23782_DS1.pdf
• File Type:
  [PDF - 9.77 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:34003b0b0e2ea03d34f50c1f7b20cb81724c52601cd941e1b319c247f7294578f35a63b4c0c6d6f58e525410a12817d9a0879a6348759ef8b70c8448c3a65842