Research On Risk Assessment And Prevention Of Truck Rear-end Accident

In recent years,the high-quality development of China's social economy has led to the rapid development of the logistics industry.With the development of the logistics industry,the transportation industry,especially the road freight transportation,plays an important role in China's comprehensive transportation system.At the same time,the number of traffic accidents involving trucks is increasing.In all kinds of accidents,rear end accidents of trucks account for the largest proportion,and have the characteristics of high casualty rate and large property loss.Once the accident occurs,it will not only cause great loss to people's life and property safety belt,but also cause great negative impact on society.Therefore,it is of great significance for the improvement of road traffic safety level to study deeply the rear end accidents of trucks and reduce the incidence of rear end accidents.On the basis of summarizing the research status at home and abroad,this paper introduces the basic concept of the rear end accident of the truck,and analyzes the characteristics of the rear end accident of the truck in China.Based on the in-depth investigation data of truck rear end accidents,this paper analyzes the risk factors from four aspects of drivers,vehicles,roads and environment.From the point of view of safety system engineering,this paper analyzes the causes of rear end accidents of trucks,and reveals the mechanism of rear end accidents of trucks.Based on the theory of cause of traffic accident,expert experience and previous research results,the risk factors set of truck rear end accident is determined from four aspects of driver,vehicle,road and environment;Based on Bayesian theory,the Bayesian network model of risk assessment of truck rear end accident is constructed by using netica software,and the model is used to analyze quantitatively the significant risk factors and risk portfolio under different risk levels of truck rear-end accidents.Based on the significant risk factors,this paper studies the quantitative relationship between driver reaction time,vehicle speed and load risk factors and driving distance from the micro level,and constructs the theoretical model and regression model of safe driving distance.Comparing the theoretical model with the regression model,it is found that the prediction accuracy of the regression model is relatively high.Select real accident cases of trucks and use the safe driving distance regression model to carry out risk assessment of rear end accidents of trucks.Finally,based on the analysis of the current situation of the prevention of rear end accidents of trucks in China,this paper puts forward corresponding prevention and control strategies from the aspects of drivers,vehicles,roads and environment.In order to prevent the rear end accidents of trucks to the maximum extent and reduce the severity of rear-end accidents.