AN OBSERVATIONAL STUDY OF DRIVER BEHAVIOR AT SIGNALIZED RAILROAD CROSSINGS

This is a study of the behavior that normally occurs when drivers approach railroad grade crossings. Observation of 2,344 cars and trucks at six Ontario grade crossings showed that high potential for accident is due primarily to the great variability in vehicles, track configuration and signal duration. A Sequential and Standardized Warning Signal (SSWS) systems is suggested as being unambiguous in that it clearly indicates the specific course of action and reduces the decisional uncertainty of motorists to a minimum. Other changes suggested include a standardized crossing surface, emergency sirens on trains, and slight alteration in the basic SSWS system in proximity to train stations. Further research plans are also indicated.