Evaluation Model of Urban Road Network System Capacity

Abstract:

Through constructing virtual node and transfer lines,the complex traffic system including car network,public transportation network and rail transit network was transferred into the super network,and the evaluation model of traffic system capacity of composite super network was built.The upper model was maximum flow problem,and reflected the maximum services flow of compound traffic system; the lower was the combination model of the trip distribution and equilibrium assignment,and reflected the bicycler using route choice,mode and transfer nodes choice simultaneously.By taking traffic network system capacity calculation in Wuhu city as an example,the results show that network capacity agrees well with the urban development strategy to south and to east,which proves the correctness and effectiveness of the model and algorithm.

Key words:composite traffic system; system capacity; super network