Research On Traffic Accident Prediction And Contingency Plan Of Expressway Tunnel Based On Bayesian Network

With the development of China's socio-economic and technological development,the increasing mobility of the population,the mileage of the highway and the mileage of the vehicle have increased significantly,leading to frequent traffic accidents and not only causing casualties and direct property damage,but also making the expressway Of the traffic congestion,and may cause toxic,harmful gas or liquid leakage,resulting in greater disaster accidents,to the safe operation of the highway impact.The tunnel is an important section of the highway to shorten the distance.If a traffic accident occurs in a tunnel within a highway,it will cause greater harm to the operation of the tunnel and the difficulty of evacuation and evacuation,so that the vehicles and personnel of the tunnel will be affected by the traffic accident.Therefore,the highway tunnel safety accident prediction,safety accident safety and safety accident inspection research is called the current research focus.This paper takes the highway tunnel traffic safety accident as a research case.Based on the study of the relevant development background and the characteristics of highway tunnel traffic safety accidents,this paper studies the traffic safety accident problems existing in the study of highway tunnel traffic safety accident characteristics.Traffic Safety Accident Factors in Each Aspect: Personnel,Vehicles,Management,and Environment A study on the characteristics of traffic safety accidents in expressway tunnels is presented.Bayesian network was selected as the main modeling method in the research and analysis method.By analyzing the factors of traffic safety accidents in expressway tunnels,combined with the knowledge of experts and knowledge of probability theory,the Bayesian network of highway tunnels was constructed.The safety prediction model combines the traffic safety accident data from one accident-prone road section of Guandong Expressway Dongguan section(Guanyinshan tunnel)and uses the Bayesian network to conduct empirical application of quantitative prediction and analysis of highway tunnel traffic safety accidents.At the same time,an emergency plan for traffic safety accidents in expressway tunnels was proposed.This will not only solve the emergency treatment of the Dongguan-Guangdong section of the Guandong Expressway(Guanyinshan Tunnel),but also provide reference for the emergency of other tunnels of the same type.