Termination and Transition of Temporary Concrete Barrier

For the research studies described herein two new technologies were developed for temporary concrete barriers (TCBs). The first project developed an economical method for terminating and anchoring the upstream end of TCB systems. The second developed a TCB approach transition for attachment to permanent concrete median barriers. Both designs were configured for use with the Kansas F-shape TCB that is currently used by several states participating in the Midwest Pooled Fund Program. These efforts were performed in accordance with the Test Level 3 (TL-3) guidelines found in the Manual for Assessing Safety Hardware 2008 (MASH). The termination and anchorage system allowed for a significant reduction in the number of barrier segments required upstream from the length of need and for use in anchoring a free-standing TCB system. The anchorage system was configured to effectively constrain the end of the TCB system for impacts as far upstream as the first anchored barrier segment. Full-scale crash testing demonstrated that the impacting vehicle was safely and smoothly redirected, and the test was judged acceptable according to the TL-3 safety criteria set forth in MASH. The approach transition was developed for attaching free-standing TCBs to permanent concrete median barriers. Evaluation of the approach transition required testing at two Critical Impact Point (CIP) locations. Full-scale crash testing demonstrated that the impacting vehicle was safely and smoothly redirected, and the testing of the approach transition was judged acceptable according to the TL-3 safety criteria set forth in MASH.

Language

  • English

Media Info

  • Media Type: DVD
  • Features: Figures; Photos; References;
  • Pagination: 24p
  • Monograph Title: TRB 89th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

Filing Info

  • Accession Number: 01150967
  • Record Type: Publication
  • Report/Paper Numbers: 10-0431
  • Files: PRP, TRIS, TRB
  • Created Date: Jan 25 2010 10:14AM