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Pages 7-8

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From page 7...
...   v Abbreviations AAR Association of American Railroads ABDX Current air brake valve manufactured by Wabtec ATCCRP Advanced Tank Car Collaborative Research Program BP brake pipe CCD car control device CPR conditional probability of release DB-60 Current air brake valve manufactured by New York Air Brake DOT U.S. Department of Transportation DP distributed power ECP electronically controlled pneumatic EOT end-of-train device FAST Act Fixing America's Surface Transportation Act fps feet per second FRA Federal Railroad Administration GE General Electric HHFT high-hazard flammable train HHFUT high-hazard flammable unit train mph miles per hour NAS National Academy of Sciences NASEM National Academies of Sciences, Engineering, and Medicine NBR net braking ratio NS Norfolk Southern NTSB National Transportation Safety Board NYAB New York Air Brake Corporation OL overlay PHMSA Pipeline and Hazardous Materials Safety Administration POD point of derailment psig pounds per square inch gauge RAIRS Rail Accident/Incident Reporting System RIA regulatory impact analysis RSI Railway Supply Institute TRB Transportation Research Board TTCI Transportation Technology Center, Inc.
From page 8...
... vi Model peer review A tool for improving model quality by attempting to ensure that the model is technically adequate, is competently performed, is properly documented, and satisfies established quality requirements through the review of assumptions, calculations, extrapolations, alternative interpretations, methodology, acceptance criteria, and conclusions pertaining to the model or its application. Model validation Execution of tasks involving computational modeling and measurements designed to assess the predictive capability of models for specific applications in a focused, well-structured, and formal manner.

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