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Guidance Regarding the Appropriate Process for the Inspection of Highway-Rail Grade Crossing Warning System Pre-emption Interconnection with Highway Traffic Signals
Keywords: S-12-01; Pre-emption Interconnections; Grade Crossing Warning System
Keywords: Collision ; Fatalities; Injuries; NTSB
Advising all persons involved in loading and unloading products from railroad tank cars that they cannot rely on internal excess flow valves to stop the flow of product except under the limited conditions for which these valves were designed and installed
Keywords: Hazardous Materials; railroad tank car; hazardous material;� tank car excess flow; NTSB