Research on the Driving Risk Evaluation in Highway Work Zone Section based on Cloud Model

In order to evaluate the driving risk of the highway construction and maintenance work zone, identify the dangerous sections and improve the level of road traffic safety, considering the traffic conditions, speed and deceleration were used to evaluate the driving risk by cloud transformation and cloud reasoning technology. Based on the traffic flow theory, the traffic volume, speed and deceleration were chosen as the three evaluation indexes, and determine the certainty degree of evaluation index in the concept of cloud model, and the rule base of driving risk evaluation in highway was established and the risk could be evaluated by this method. The research results quantify the impact of traffic volume, speed and acceleration on the driving risk at the highway construction and maintenance work zone, which provides a good reference value for the future road safety design.