Cause Analysis of Traffic Accidents in Regional Expressway Network and Countermeasures for Improvement
In recent years,with the economic development and the increase of mileage,highway traffic accidents in China have shown a trend of frequent occurrence and seriousness.It is very important to analyze the causes of accidents and put forward preventive strate-gies for ensuring traffic safety.Based on the traffic accident data of expressway in Anhui Province,the temporal and spatial distribution characteristics,accident morphology characteristics and distribution characteristics of accidents under the influence of weather are dis-cussed by descriptive statistical analysis.The results show that the types of highway traffic accidents are mainly vehicle faults,collisions between vehicles and guardrails and vehicles.the beginning of the month,daily travel peak and non-working days are the high-inci-dence periods of accidents;accidents are mainly distributed in complex nodes such as transportation hubs,entrances and exits of service areas,and the accident rate in mountainous areas is higher than that in plain areas.On this basis,the causes of accidents are analyzed from the aspects of time,space and environment,and the prevention countermeasures of highway traffic accidents are put forward.