Abstract
This paper describes hazardous maneuvers and their possible utilization to evaluate hazard of roadway sites. Some established hazardous maneuvers are erratic maneuvers, traffic conflicts, near-miss and hazardous regions of vehicle pairs. Hazard is defined as an occurrence function. The possible output consists of a continuous range of manifest severity events—accidents, hazardous and borderline maneuvers. An interval of that range is described by a subfunction of the occurrence function. The input consists of driver. environment and vehicle (DEV) variables. A random variable is interrelated with the DEV variables in the occurrence function forming complex interactions. In a comprehensive hazard reduction program, the concept of hazardous maneuvers is only a subset of the total hazard. Remedial techniques would be applied to the DEV variables as suggested by models of occurrence subfunctions and conventional traffic engineering studies.
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