A Study On Vehicle Operation Risk Based On Typical Case Analysis Of Traffic Accident

In the past few years, road transportation industry is developing rapidly, and ithas made great contributions to the development of national economy. However,frequent traffic accidents along with that have caused extensive attention of all thesociety. The road traffic accidents not only cause a great loss to the social economy,but also do harm to people’s life and property. All those have directly influenced socialstability and harmony. Therefore, it is necessary to conduct the thoroughly research onthe road traffic accident and to put forward effective measures to prevent and managethe accident.The serious road traffic accidents were classified. According to thecharacteristics of road traffic accidents, serious road traffic accidents are classifiedfrom the point of accident form. And through analyzing accident form’s relationshipwith other accident factors, it summarizes characteristics and influence factors ofvarious form accidents.The accident cause theory and its application in the field of road traffic safetywas studied. The accident cause theory includes the theory of energy transfer,trajectory intersection theory, perturbation theory of the origin and the theory ofmismanagement. These theories explain the nature of the road traffic accident fromvarious aspects, and their emphasis is not identical. In practice, they should be chosenappropriately and be used flexibly.On the basis of previous research findings, the thesis uses the fault tree analysisto study the serious road traffic accident. Establish a fault tree of serious road trafficaccident and four sub fault trees according to four typical accident forms. Analyze thefault tree qualitatively by solving the minimal cut sets and structural importancedegree. Then identify the dangerous situations of vehicle operation and describe it.And classify the danger level of all accident factors.Study on the two dangerous sources of serious road traffic accident. Analyze theimpact of speeding on car’s running conditions in the first dangerous source, and theimpact of human factors, vehicle factors, road factors and environmental factors oncar’s running conditions in the second dangerous source. And build a dangeroussource structural model of serious road traffic accident.