Design, fabrication and installation of a fragmenting tube type energy absorber in conjunction with a bridge rail. Paper presented at the 49th Annual Meeting of Highway Research Board HRB, Washington, D.C., January 1970.

This report discusses the design theory which provides a new concept energy absorbing bridge rail, utilizing a fragmenting tube as the primary energy absorbing element. The paper also discusses the separate functions of the bridge rail as both an energy absorbing system for small vehicles and a redirecting rail for large vehicles. Also presentence in a new concept in guardrail design- the cantilevered rail concept.