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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Side Structure Integrity Research for Passenger Rail Equipment

Document Series
Technical Reports
Federal Railroad Administration
Report Number
Subject Crashworthiness - Passenger Equipment
Passenger rail, structural crashworthiness, side structure, sidewall, side impact, railcar design, passenger equipment

FRA sponsored research to evaluate the side impact strength of Tier I passenger rail equipment designs built to the current rollover and side structure regulations. This report presents results from the first stage of this research program, including: (1) the makeup of the U.S. passenger car fleet; (2) the accident history involving side structures in the U.S.; (3) a review of passenger rail-side structure design and performance criteria in current standards and regulations; (4) an evaluation of proof loads for similar vehicle structures used in other modes of transportation; and (5) a discussion of the technical challenges in proposing side impact criteria.

Last updated: Monday, December 5, 2022