Urban Local Network Traffic Assignment Method Based on Turning Splitof Intersection

In order to make the best of limited traffic detectors, know about the traffic performance of urban road network, and then set effective management measurements, the paper puts forward a loop detector-layout method called "close-loop", and a traffic assignment method for local urban road network. A traffic assignment model is founded based on the stability test of turning split of intersections by real data, and the uniqueness of assigned link flow is discussed. Monte Carlo Stochastic Modeling Method is adopted to design vehicle turning behavior module, and a simulation model is founded. The model shows better performance and applicability in real local network, and can provide reference for founding related traffic models for ATMS and the layout of traffic detectors.