Studies On The Safety Of The High-level Highways Weaving Area

With the development of freeway in our nation,the loss of people property and lives caused by traffic accidents became more and more large. Weaving area is one important composition of high-type highway,which safety level embodied the safety of vehicle operation. The complicated vehicle running situation and security study work at weaving area is difficult all the time, so it is very important for research meanings to carry on research of the security of weaving area.Based on the theory analysis of summarizing the research document of interweaving area.From the vehicle operation courses, the relation between traffic conflict technology and its influence factor is investigated and a predictive model based on artificial neural network (ANN)is presented. And on this basis, the relation between traffic conflict counting and road safety condition is analyxed and thus a model is presented to appraise weaving area of the high-type highway safety condition with traffic conflict counting.Based on above model,safety appraisal and ameliorative flows are presented aim at weaving area of the superhighway and built projects so as to systematically improve safety condition at Interweaving area of the high-type highway. Finally,it carry on the data materials investigating and surveying from the weaving area of the high-type highway in Fujian Province as the instance analysis. Seen by the debugging of the model and test result, the traffic conflict predict model of weaving area of the high-type highway and the road security appraisal model have better using value and have been proved further feasible through the data of the instance test.