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In Phase II of this research project, FRA sponsored Wabtec to perform train air brake tests on long trains at their facility in Wilmerding, Pennsylvania, between January 2021 and March 2021. The air brake rack simulated trains with up to 200 control valves using a conventional (i.e., head-end...
This report presents the means to identify and assess impacts and mitigation methods for aerodynamic effects of high-speed trains on high-speed rail corridors for designers, operators, and other affected parties. It provides descriptions of basic concepts, criteria, standards, and examples...
From 2017–2019, the Federal Railroad Administration sponsored VORtech and its project partners to develop advanced physics-based modeling of wheel-rail friction. Sub-models were established for the elastic and plastic shearing of third body layers, heating of the contacting surfaces, and effects...