Research on Decision Risk of Driving Behavior Based on Traffic Information Asymmetry Degree

Analyzing driving behavior decision risk is the key to evaluate the road traffic safety. In order to understand the production mechanism of behavior decision risk preferably, the application of information asymmetry theory will set up the decision risk of driving behavior model centering on the traffic accident probability, the accident severity and the traffic information asymmetry degree in this paper, finally, the practicality and accuracy of model were verified through examples. The case has showed that the road traffic information searching and judging is different for drivers of different vehicle type in the same road section, which also leads to the different running risk degree in some extent. The investigation result is that the integrated risk of heavy truck and large bus is highest, while the mini bus is lowest, and the light truck is middle, which has fully verified the effectiveness of the model.