Analysis Of The Influence Of Road Alignment Factors On Traffic Safety

In recent years,with the rapid growth of the national economy,transportation industry rapid development.As an important branch of the transportation industry,highway traffic is in fast development,the national highway mileage levels gradually increased.The highway construction is in good shape to the development status of highway traffic safety,at the same time will be more pay attention to the national highway traffic accident statistics are shocking.People always consider the subjective factors in the search for the cause of the accident,in fact,road conditions also have a great impact,how to improve the safety level of road traffic,reduce traffic accident rate,is an urgent To solve the problem.In the highway traffic "person,vehicle,road,environment" system,"road" factors on traffic safety can not be ignored,especially the influence of road alignment factors on traffic safety is very important,the road alignment level directly affects the safety of highway traffic.Firstly,access to a large number of domestic and foreign research literature to grasp the current status of the research,starting from many factors classification of road alignment,focus on the analysis of plane alignment,road alignment in cross section alignment,vertical alignment and distance,influence of linear combination factors on traffic safety;secondly based on road safety evaluation theory established a set of comprehensive evaluation evaluation of highway alignment safety system;once again the use of fuzzy comprehensive evaluation to establish the evaluation model,judging the safety of highway alignment;finally,through an example to test the evaluation system and evaluation model in the evaluation of the road safety is reasonable.Through the research and analysis of the road alignment condition of road traffic safety can not be ignored,especially the effects of combination of horizontal alignment,vertical section line form of traffic safety is particularly obvious,in order to ensure the safety of the car must take into account the plane,vertical and horizontal and vertical combination,a reasonable set of road alignment road.Linear factors have a significant impact on traffic safety,should be in the planning and design stage of the establishment of traffic safety evaluation system,conduct a careful review of road alignment factors may cause traffic accidents,reducing operation in road safety hazards.By comparing and choosing appropriate evaluation method,finally By using the method of fuzzy mathematics to establish a road safety evaluation model,and use a specific example to verify the alignment safety evaluation model,the results show that the road safety evaluation model established in this paper can objectively reflect the actual situation.