Performance Based Track Geometry Phase 2 (2015) / Chapter Skim
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C H A P T E R 1 Background Poor vehicle dynamic performance and poor ride quality frequently occur at track locations that do not exceed track geometry or safety standards, such as curve entry or exit, combinations of several track geometry deviations, special track work, and track misalignments that promote yaw instability or hunting. Poor ride quality may not be an indicator of unsafe operation, but may point to an area of track or a vehicle that needs maintenance to prevent further degradation.
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In support of the Transit Cooperative Research Program (TCRP) D7 Task 19 research program, TTCI completed Phase 2 of PBTG for the transit system research.
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