Mash Test 4-12 of Shallow Anchorage Single Slope Traffic Rail (SSTR)

The purpose of the tests reported herein was to assess the performance of the Texas Department of Transportation’s (TxDOT’s) shallow anchorage single slope traffic rail (SSTR) according to the safety-performance evaluation guidelines included in the American Association of State Highway and Transportation Officials (AASHTO) Manual for Assessing Safety Hardware (MASH). MASH Test 4-12 was performed on the TxDOT shallow anchorage SSTR to determine the structural adequacy of the anchorage. Two different barrier configurations were evaluated: with and without dowel bars between barrier segments across expansion joints. This report provides details of the TxDOT shallow anchorage SSTR, the crash tests and results, and the performance assessment of the TxDOT shallow anchorage SSTR as a MASH Test Level 4 (TL-4) longitudinal barrier. Both variations of the TxDOT shallow anchorage SSTR (with and without dowel bars between barrier segments across expansion joints) were determined to be MASH TL-4 compliant. No delamination or damage to the deck was observed in the test installation after impact.

• Record URL:
  https://static.tti.tamu.edu/tti.tamu.edu/documents/0-6968-R10.pdf
• 
• Summary URL:
  https://library.ctr.utexas.edu/Presto/search/SearchResults.aspx?q=(catalog.ID%3a(38232))
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/59047
• Supplemental Notes:
  • Project title: Roadside Safety Device Analysis, Testing, and Evaluation Program.
• Corporate Authors:

  Texas A&M Transportation Institute

  Texas A&M University System
  3135 TAMU
  College Station, TX  United States  77843-3135

  Texas Department of Transportation

  Research and Technology Implementation Office
  125 E 11th Street
  Austin, TX  United States  78701-2483

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Moran, Sana M
  • Bligh, Roger P
  • Menges, Wanda L
  • Schroeder, William
  • Kuhn, Darrell L
• Publication Date: 2020-12

Language

• English

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 118p

Subject/Index Terms

• TRT Terms: Anchorages; Barriers (Roads); Crash tests; Dowels (Fasteners)
• Identifier Terms: AASHTO Manual for Assessing Safety Hardware; Texas Department of Transportation
• Subject Areas: Design; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 01762371
• Record Type: Publication
• Report/Paper Numbers: FHWA/TX-21/0-6968-R10, 0-6968-R10
• Contract Numbers: 0-6968
• Files: NTL, TRIS, ATRI, USDOT, STATEDOT
• Created Date: Jan 20 2021 1:56PM