Simulation Method Integrating Urban Local Network Traffic Flow with OD Estimation

Abstract:

In order to make the best of limited traffic detectors,understand the traffic performance of urban road network,and then take effective management measures,the paper puts forward a loop detectorlayout method called “closeloop”,and a method for estimating link traffic flow and OD matrix for local urban road network.A theoretical model is established based on the stability test of turning split of intersections by real data,and the uniqueness of assigned link flow and OD matrix is discussed.Monte Carlo Stochastic Modeling Method is adopted to design vehicle turning behavior module,and a simulation model integrating link traffic flow and OD matrix estimation is established.The model shows better performance and applicability in real local network,and can provide reference for establishing related traffic models for advanced transportation management system(ATMS) and the layout of traffic detectors.