Abstract:

Main factors on taking measure of speed reduction were analyzed when one driver meets the dangerous situation of road in advance. Mechanism and constrains of psychology which induce the speed reduction behavior were discussed. To combine driver's risk avoidance behavior modes with behavior control model, the mechanism and the model of speed reduction behavior were built up based on capability of risk cognition and driving control. A case study was implemented by using data of survey of vehicle speed reduction behavior at curve section in twolane highway. Experiments and analysis results show that the degree and driver's psychology process of speed reduction is reflected distinctly by using the model when drivers are driving in highway with a speedlimit sign.

Key words: traffic safety, speed control, drivers behavior, cognitive psychology, speed-limit sign