Research On The Freeway Traffic Accidents And Countermeasures

At present, China is coming into a rapid development moment of freeway. Freeway provides good traveling condition to vehicles, improves our country's traffic transportation and promotes the national economic greatly, which has smooth alignment, expanse roadway, and different kinds of efficient traffic safety infrastructure. However, with the rapid increase traffic volume, traffic accident becomes more and more serious and brings graveness consequences to human life and wealth. Traffic safety problem attach high attention from governments of many counties. We do not have regularities cognition of traffic accident because of relatively late construction of freeway. Therefore, discussing traffic accidents has importance significance to prevent traffic accident and improve freeway safety situation.Based on the traffic accident data from Huai-Lian freeway and other freeway of domestic and abroad, Freeway safety problems are researched and analyzed. Through the analysis of the great deal of accidents data, the paper studies the distribution regularities of road traffic accident by applying the statistic methods, including time and space distribution, accident form distribution, climate distribution and so on., the distribution regularities of serious accidents in different forms are obtained.The strongpoint and shortcoming of methods used to identify accident-prone locations in domestic and abroad are researched. The accident accumulation frequency method (AAMF) is presented to identify accident-prone locations, Furthermore, It is applied in the examples.The accident-prone locations on the Huaiyin-Lianyungang freeway are distinguished and the main causes of accidents are obtained.The influencing factors of freeway traffic accident are studied. By researching the relationship between traffic accident and human, vehicle, road environment, the influence levels of the three factors on the occurring of accident are obtained.The relations among traffic accidents, road-alignment, pavement conditions, traffic volume and atrocious weather are studied, the relationship between the accidents and these external factors are gained.Based on the analysis of the grey theory of traffic accident, the GM(1,1)model has been set up according to grey theory, then the number of traffic accident of the Huaiyin-Lianyungang freeway is forecasted with this model. According to the cause and mechanism of freeway accident, the whole countermeasures to improve traffic safety from the angle of human, vehicle, road and environment aspects are presented, also the framework of Huaiyin-Lianyungang freeway emergency rescue system is constructed.