Study On Systems And Assesssment Of Multi-interchange

Multi-Rode Interchange type selection not only affects the intersection of roads and interchange their functions, but also with regional planning, network traffic function of the play, urban and regional economic development and the environment are very closely related.In this paper, study on the basis of the the characteristics of multi-Road Interchange, the initial establishment of a multi-rode interchange's type system: Concentration combined interchange, Focus ring interchange, Splitting complex interchange, "five variable four " exchange of channel-type interchange, completely separatec interchange. And make relevant features of multi-rode interchange's type system and application conditions.Interchange as a transport infrastructure, its primary function is to meet the related transportation needs,through this point is provided vehicular and pedestrian the efficient and comfortable traffic services . Therefore, the paper argues that in a multi-Road Interchange program evaluation should be key considered to function indicators. Established a new functions evaluation of index system.Index system of the basic summarizes is interchange of travel time, capacity, and interchange security these three aspects, and then elaborated on the quantitative methods to the various indicators.Paper by Analytic Hierarchy Process(AHP), and Fuzzy Comprehensive Evaluation(FCE) method, established a new composite functions evaluation of index system to Multi-Rode Interchange. Unifies Huangjuewan interchange example,proved this model and method feasibility in reality and the precision may satisfy the actual project precision request,finally determines in the technology feasible and economy reasonable Multi-Rode Interchange scheme.