Research On Security After Increasing The Number Of Lanes From Six To Eight Based On The Original Subgrade Width Of Suburban Freeway In Chongqing

Highway four lanes to six lanes, or six lanes to eight lanes, road traffic conditionschange, especially eight lanes of the highway safety features and other lane less than thehighway is different, in order to prevent and reduce both lane six to eight after theoccurrence of traffic accidents, promote highway both lanes instead of the eight after sixto raise the level of safety management, they need to look to change after eight of thesix security research. This article from a security perspective, the chongqing suburbanfreeway lane six to eight scheme as the safety of the analysis, this paper discusses thelane change after eight both six security measures, the part of the lane change morehighway construction has the important practical significance.First of all, according to research and rely on project research content analysis,beibei in jiangjin sections to, for example, gives the chongqing suburban freeway lanesix to eight scheme both.Secondly, according to the basic principle of road safety, combining with the actualsituation to jiangjin beibei road, from traffic road condition, traffic organization design,traffic safety facilities three aspects, analyzes the suburban freeway lane six to eightboth after the influence factors of safety.Again, through the established based on the analytic hierarchy process (ahp) fuzzycomprehensive evaluation model and combining with a variety of safety evaluationprinciple, and using mathematical method of quantitative analysis of chongqingsuburban freeway lane six to eight scheme as the safety of the comprehensiveevaluation, accurate judgement of the plan of the security level to "safer", and furtherout the defects of the scheme.Finally, through to the chongqing suburban freeway lane six to eight both after thesecurity of the scheme, perfect the lane change after eight six both the security of thescheme safeguard measures, which is beneficial to the expansion of the driveway afterlocal security.