Research On Arterial Traffic Signal Coordinated Control Method Based On Cooperative Vehicle Infrastructure System

With the acceleration of urbanization and the rapid development of China’snational economy, vehicle amount and traffic volume increased dramatically;however, city traffic infrastructure construction speed lags far behind the rapidgrowth of traffic demand, the contradiction between supply and demand increasessharply. It is difficult to solve the worsening traffic congestion, accidents,environmental pollution, energy shortages and other common issues facing the world,by relying solely on traditional traffic management, or simply from the perspectiveof road and vehicle.Establishment of integrated transport system of people, vehicles and road whichis based on integrated information exchange between vehicles and vehicles, road andvehicles, is significant to improve the efficiency and safety of transport systems, alsovery importance to achieve sustainable development of the transport system.Cooperative vehicle infrastructure system technology is an advanced technology inthe international field of intelligent transportation technology, is an effective solutionto urban traffic problems. Cooperative vehicle infrastructure system uses advancedFull-time dynamic traffic information collection and fusion technology, control thevehicle’s safety actively and manage traffic cooperatively through comprehensiveimplementation of dynamic real-time information exchange vehicle/vehicle andvehicle/road, is a large scale real-time distributed system related to multi-factor,multi-level complex relationships.Urban arterial traffic network are arteries of urban transportation, they oftenhave to bear enormous traffic pressure constantly, so it means great significance toimprove the entire urban traffic conditions by improving the control effect of urbanarterial roads. Developing the arterial intersection signal coordination controltechnology research under cooperated vehicle infrastructure environment isconducive to the provision of technical reserves to improve the safety and efficiencyof road traffic. Therefore, based on the analysis of overseas and domestic researchstatus of cooperated vehicle infrastructure system and traffic signal control system,this paper analyzes vehicle driver behavior characteristics under cooperated vehicleinfrastructure environment, builds the urban arterial traffic flow model under cooperated vehicle infrastructure environment, analyzes interaction mechanismbetween traffic signal control system and traffic flow under cooperated vehicleinfrastructure environment, establishes the signal control model and methods ofarterial traffic roads under cooperative vehicle infrastructure environment, thenconduct traffic simulation experiments to test and validate, and lay the foundationfor the development of the next generation of traffic signal control system. All aboveshow that it has important theoretical and practical value.This paper proposes the arterial traffic signal coordinated control method underthe cooperative vehicle infrastructure system environment on the base of above,establishes vehicle speed guidance model in the CVIS environment.Chapter1reviews the overseas and domestic research status on cooperativevehicle infrastructure system and urban traffic signal control, proposes theimportance of utilizing cooperative vehicle technology to improve traffic signalcontrol for the current existing shortage of signal control method, and thus leads tothis article research and specific chapter arrangement.Chapter2introduces the technology system framework of cooperative vehicleinfrastructure system.Chapter3analyzes the basic theory and methods of arterial coordinationcontrol.Chapter4analyzes the framework of intersection signal control system undercooperative vehicle infrastructure environment, and analyzes operation process ofvehicle at road intersections, then, establishes the arterial intersection coordinatedcontrol model under the strategy of the Dynamic Speed guidance and DynamicSignal timing(DSDS), then analyzes the single vehicle speed guide model andvehicles speed guide model under cooperative vehicle infrastructure environment.Chapter5constructs the cooperative vehicle infrastructure signal controlexperimental system, and has a detail description of design process of each module.Chooses4intersections as experimental subjects, and the simulation results showthat traffic signal control method established in this paper is better than MAXBANDcoordinated control method and fixed control method.In this paper, establishes the arterial traffic signal coordinated control methodbased on cooperative vehicle infrastructure system. the research results show that thetraffic signal control method is superior to the traditional timing control and MAXBAND arterial coordination control method.However, the signal control model based on vehicle delay and stops withoutconsidering individual differences between vehicles, and the impact of thepedestrians and non-motor vehicles, which is not in conformity with the situationthat traffic flow mixed motor vehicle and bicycle in a certain extent. So the hybridtraffic signal control method under the cooperative vehicle infrastructure systemenvironment needs further analysis.