Research Results

Application of Alternative Criteria and Procedures to Passenger Railcars

  • 12
  • May
  • 2015
AUTHOR: Federal Railroad Administration
REPORT NUMBER: RR 15-12
SUBJECT: Passenger Rail
KEYWORDS: Application of Alternative Criteria and Procedures to Passenger Railcars; Occupant volume integrity; OVI; crippling; buff strength; alternative criteria
ABSTRACT: Occupied volume integrity (OVI) refers to a passenger railcar’s ability to preserve space for passengers and crew during an accident. The Federal Railroad Administration’s (FRA) Office of Research and Development (R&D) is sponsoring research investigating OVI. The results of a series of tests have been published in an FRA Report [1]. This research forms the basis for establishing alternative OVI evaluation procedures. The alternative procedures permit an analysis to be validated with data from an elastic test. The validated analysis may then be used to extrapolate the behavior of the subject car under destructive load conditions, without conducting companion destructive testing.
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