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Keywords: Engineer Certification
Keywords: Fouled ballast performance, track geometry, degradation, trending, long-term wayside monitoring, waiver operations, enforcement modes, track, Autonomous Track Geometry Measurement System, ATGMS, track
Keywords: Concrete crossties; crosstie degradation; center cracks; cyclic loading; flexural performance
Keywords: Impact test, prototype DOT-113 tank car, tank car performance, transportation safety, hazardous materials, surrogate
Keywords: Crashworthiness, collision post, freight locomotives, S-580