Technical Reports

Railroad Passenger Ride Safety

  • 01
  • Apr
  • 1989
AUTHOR: R.P. Owings, P.L. Boyd
OFFICE: RPD
REPORT NUMBER: DOT-FRA/ORD-89/06
SUBJECT: Safety Performance Measures
KEYWORDS: Safety, Ride Safety, Railroad Passenger Service, Lateral Acceleration, Jolt, Jerk, Cant Definicency, Vehicle Over-Turning
ABSTRACT: Safety requirements for high cant deficiency rail passenger service address the dangers of vehicle derailment, track damage and unreasonable risks to standing passengers of falling. Safety criteria concerning vehicle derailment and track damage have been weeldeveloped. Those applicable to passenger vehicle test data are discussed, and the vehicle overturning safety criterion is shown to be the most restrictive. A literature search of ride criteria and research was conducted. The findings presented in this paper show that most criteria address ride comfort rather than ride safety. Ride comfort is viewed as an economic rather than safety issue. Objective experiments, described in the literature, relating the ability of test subjects to maintain equilibrium under various acceleration environments are described. Ride safety criteria are recommended which are based on the published experiments, recent vehicle acceleration measurements and railroad operating practices.

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