Comprehensive Traffic Characteristics Analysis And Pre-signal Control Research In The Waiting Area

As a hot issue and essintial component of urban traffic management and control,study of the signal control methods at the intersection is widely concerned by the industry.How to use the limited time and space resources to explore and excavate the urban traffic potential and improve the overall traffic status of the intersection scientifically becomes the focus of the research in urban traffic area currently.In this paper,the comprehensive stay line area of the entrance channel was taken as the research object,and the relevant research was carried out in the aspects of stay line area setting conditions,vehicle behavior analysis,traffic operation benefit evaluation,pre-signal control strategy and simulation of control effecttions.First of all,this paper summarizes the research results on the control methods,the stay line area control,the pre-signal control and the traffic simulation analysis at home and abroad.Then,the general arrangement method of the comprehensive stay line area is summarized as well.The traffic conditions and the control conditions are analyzed,and the behavior of the traffic flow characteristics of the integrated area is modeled.According to the selection principle of the evaluation index,parameters were analyzed such as the saturation,the capacity,the delay,the number of stops and the fuel consumption.The optimal control effect is verified of the comprehensive stay line area setting in the intersection.The paper puts forward the model of vehicle queuing model based on the theory of traffic wave,And establishes the coordination and control method of the main and pre-signal of the comprehensive stay line area to be considered in line with the queuing constraints.Based on the concept of level analysis,the induction control strategy of the comprehensive stay line is put forward.Finally,with the advanced micro-traffic simulation software VISSIM,the simulation results of the above theoretical research are modeled,evaluation results are verificated uumerical simulations are analyzed,which fully proved the validity of the theoretical research results.The results of the paper show that it is possible to improve the traffic capacity and reduce the delay so as to improve the overall traffic condition.However,due to the special release rules of the comprehensive stay line area,compare with the traditional intersection control methods,the increase in the number of parking and fuel consumption can not be avoided in the off-peak period with the comprehensive stay line area to be set.Therefore,the practical application of the comprehensive stay line area should be combined with reasonable optimization control strategy,so as to give full play to the control advantage of the comprehensive stay line area,including the coordination control strategy between the main signal and the pre-signal and the all-induction control strategy.