Risk Assessment Model of Expressway under Adverse Weather Based on Dynamic Bayes Network

摘要

According to the results of risk source identification, this paper constructs the discrete DBN network structure by selecting the influential factors which have great influence on the expressway operation, then chooses timeliness as the evaluation index of dynamic DBN. Based on the discrete DBN network, this paper finally establishes a real-time expressway risk evaluation model. The validity of the above risk assessment model is demonstrated by examples.