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Derailment of Transit Vehicles in Special Trackwork
Report Number: RRD-015
This digest provides a summary of the findings from Transit Cooperative Research Program (TCRP) Project D-2, Derailment of Transit Vehicles in Special Trackwork, which was conducted by Zeta-Tech Associates, Inc. This research, completed in 1996, recommended procedures to reduce derailment occurrences. The following methods were found to provide a highly effective and economic means for reducing derailment potentials: use of pre-point guards; use of point protectors; adoption of comprehensive maintenance and inspection standards; use of lubrication; use of spring frogs; use of fully gauge plated switch- point areas; use of spiral switch points; and use of house-top point guards.

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