| In order to alleviate urban areas traffic congestion,reduce the consumption of the system total for the whole city area road network,in this paper,the regional traffic signal control and traffic flow guidance coordinated feedback mode and coordinate method model is studied.This paper first defines two traffic signal control and traffic flow guidance coordinated feedback mode,and its applicable condition are analyzed,then,the paper constructs the critical function,regional coordination for coordination modes.Strategy level under two kinds of coordination model is established,integrated coordination model and double hierarchical coordination model,integrated coordination model of traffic signal control and traffic flow guidance system target coordinate,get the integration of collaborative goal function,double layer hierarchical coordination model contains two goals,the upper target to ease traffic congestion;Lower target to reduce the system total cost.Finally,by using the iterative optimization algorithm to solve coordination model and Changchun,a regional road network simulation experiment.Simulation results show that after the coordination of regional road network average travel time,average flow rate,the average saturation,as well as the system total cost than coordination before there were evident and the varying degree reduction,this paper puts forward the model and method can effectively improve the traffic condition,has a good application effect. |