John A. Volpe National Transportation Systems Center (U.S.)

JRC2009-63035

Proceedings

American Society of Mechanical Engineers

NTL-SAFETY AND SECURITY-Rail Safety ; NTL-RAIL TRANSPORTATION-Rail Safety ; NTL-RAIL TRANSPORTATION-Railroad Highway Grade Crossings ;

To support the development of a proposed rule [1], a fullscale

dynamic test and two full-scale quasi-static tests have

been performed on the posts of a state-of-the-art (SOA) end

frame. These tests were designed to evaluate the dynamic and

quasi-static methods for demonstrating energy absorption of

the collision and corner posts. The tests focused on the

collision and corner posts individually because of their critical

positions in protecting the operator and passengers in a

collision where only the superstructure, not the underframe, is

loaded. There are many examples of collisions where only the

superstructure is loaded.

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Volpe National Transportation Systems Center, Technical Reference Center