ECP Passenger Cable-Based Braking System—Performance Requirements


This standard contains the minimum performance requirements for electronically controlled pneumatic (ECP) brake systems operating on passenger cars that are part of the general railroad system.

Document History
Document Number Version Publication Date Publication Related Information
APTA PR-M-S-021-17 Rev. 1 08/07/2019 Published Current


clearances, gap, platform, safety


Use a hazard management approach to set standards and minimum requirements for a passenger railroad’s gap safety management program. The approach should include the following key elements:
  • Develop and implement a hazard management program that supports decisions on setting and maintaining nominal gap requirements.
  • Develop and implement visual and audible public awareness programs that communicate information about the railroad’s gap.
  • Develop and implement a training component for on-board railroad personnel in regard to their role in maintaining passenger safety while traversing the gap.
  • Implement inspection procedures to monitor station platform conditions.
  • Verify that maintenance procedures for track and vehicles maintain the system’s nominal gap as required by the railroad.
  • Develop and implement a training component for maintenance and construction personnel as necessary.

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