Research On Evaluation Of The Key Parameter Of The Road Based On Driver's Visual Characteristics

The driver and road factors play the primary role in the traffic accidents. The visual system as the input channel for sensory information accounts for 80-90% information on driving. In accordance with the principles of people-oriented, it is necessary to evaluate the key parameter of the road based on drivers'visual characteristics.On the basis of relevant research theories, This article firstly explored the feasibility of road parameters evaluation by analysis of eye movement behavior, and find eye movement parameters which can characterize the drivers'eye movement behavior. By experimental Design and real vehicle test, we can gain the test data of those parameters, and base on these data, a better universal parameter is selected as guide line of further study.Using of the rate of eye movement speed, drivers'eye movement behavior is analyzed with the changes of the speed of vehicle, road gradient and bend radius in this article, and gain the model of eye movement parameters in different conditions by correlation Analysis and regression Analysis of these parameters.According to drivers'subjective evaluation,Security threshold of driver's visual characteristics is obtained to evaluate the coordination between the road parameters and drivers'vision .Based on regression model, security threshold and coordinating principles, a coordinating fluctuation model is founded to checkout whether the road parameters coordinate with drivers'vision. In this article,it expect to reduce the accident rate by studying the coordination between the road parameters and drivers'vision.