Federal Railroad Administration May 10, 2010 – Federal Register Recent Federal Regulation Documents

Vehicle/Track Interaction Safety Standards; High-Speed and High Cant Deficiency Operations
Document Number: 2010-10624
Type: Proposed Rule
Date: 2010-05-10
Agency: Federal Railroad Administration, Department of Transportation
FRA is proposing to amend the Track Safety Standards and Passenger Equipment Safety Standards applicable to high-speed and high cant deficiency train operations in order to promote the safe interaction of rail vehicles with the track over which they operate. The proposal would revise existing limits for vehicle response to track perturbations and add new limits as well. The proposal accounts for a range of vehicle types that are currently used and may likely be used on future high-speed or high cant deficiency rail operations, or both. The proposal is based on the results of simulation studies designed to identify track geometry irregularities associated with unsafe wheel/ rail forces and accelerations, thorough reviews of vehicle qualification and revenue service test data, and consideration of international practices.
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