This study describes the development and testing of a strong beam guardrail-to-bridge-rail transition. Barrier VII was validated and used to simulate impacts with flexible barriers attached to a rigid barrier. Design curves for selecting transition design parameters of beam strength, post size, and post spacing are presented. The selected design incorporated a tubular W-beam rail element mounted on 7-inch round posts spaced on 3-foot, 1.5-inch centers. The transition was designed to simplify retrofit operations and can be used on bridges that require bridge-end drains. Three full-scale crash tests were conducted to verify the acceptable performance of the transition when attached to either a vertical concrete parapet or a concrete safety-shaped barrier.

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: p. 105-116
  • Monograph Title: Roadside safety features
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00490182
  • Record Type: Publication
  • ISBN: 0309047722
  • Files: TRIS, TRB, ATRI
  • Created Date: Dec 31 1989 12:00AM