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Policy and Guidance
Keywords: Trespassing, Vandalism, Highway-Rail Grade Crossing, Prevention
Signal Recording Devices for Highway-Rail Grade Crossing Active Warning Systems that are Interconnected with Highway Traffic Signal Systems
Keywords: I�96�10; I�96�11 ; NTSB; active railroad warning systems
Keywords: Highway-Rail Grade Crossings; Low ground clearance; AASHTO Green book; vertical profile