Study On The Speed Inducement Model Of Signalized Intersection Under The Coordination Of Vehicle And Road

In the urban road network,the delay time and fuel consumption of vehicles in the signal crossing area are more significant than other areas due to intersections.Therefore,the method of vehicle speed induction which aims to reduce delay time and improve fuel economy in the signalized intersection area has become the core of the research on energy-saving driving.In this context,this paper based on the collaborative technologies for car road signal intersection vehicles,puts forward a model of speed induction strategies and,through the study of the speed of vehicle induced,reduce the delay time in the area of the signal intersection queue length and the fuel consumption,as well as the design of decision-making model for simulation and analysis.The main work of this paper is as follows:(1)this paper analyzes the structural framework and core technologies of speed induction at signal intersections in the context of vehicle-road coordination,and on this basis,proposes the model architecture of speed induction in the context of vehicle-road coordination.(2)through a detailed analysis of the driving behavior and driving characteristics of vehicles at signal intersections,this paper proposes a vehicle traffic decision model in the context of vehicle-road coordination,and studies the speed induction methods under different decisions.On this basis,the speed optimization model based on trigonometric function is used to induce the speed of vehicles equipped with intelligent on-board equipment,so as to reduce the number of times of rapid acceleration and deceleration at the end of the signal phase,and make the speed induction curve of vehicles induced by speed smoother.(3)in this paper,the effect of the speed induction model is verified from the perspectives of the saturation of vehicle road and the carrying rate of on-board intelligent equipment.VISSIM simulation software and the secondary development of VB are used to simulate the scene of vehicle speed induction,and the test scheme of speed induction design at signal-controlled intersections is simulated and verified.The simulation resultsshow that the vehicle traffic decision model can provide correct traffic decision information to drivers.Compared with no speed induced traffic,after the speed induced traffic can effectively reduce the vehicle through the intersection of the travel time,delay time and vehicle emissions of pollutants,found through VISSIM simulation evaluation,this paper put forward the model of speed induction can effectively realize the energy-saving speed induced traffic,reduce travel time,reducing delays,improve fuel economy.