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Characterization of Track Geometry for Various Operational Conditions

This report characterizes the amplitude and wavelength content of the current track geometry environment of the United States railroad system and examines the combination of geometric parameters for different operational conditions. The analyzed track geometry dataset consists of over 49,000...

Torsional Strength and Stiffness of a Passenger Car Coupling System

Between September 2019 and June 2022, the Federal Railroad Administration (FRA) sponsored a research team from Sharma & Associates to model and test the torsional strength of a passenger car coupling system to understand the performance of coupling systems in train accidents and to enhance...

Ventilation Design and Procedures for Passenger Rail

The Federal Railroad Administration (FRA) sponsored research by the John A. Volpe National Transportation Systems Center (Volpe Center) to study the principles of fire growth and smoke management, as well as the current state of standards and regulation in the US and abroad. This study was in...