Research On Solitary Wave Of Full Velocity Difference Model With Intelligence Information

The intelligence is a kind of modern advanced technologies.It not only offers various conveniences for modern production and life for people,but also has been widely applied to traffic environment of modern society,so as to provide corresponding services and instruction,and plays a momentous role in the various transportation problems.Car-following model with intelligent information has stronger applied practical background and becomes a hot research point of problem of traffic flow nowadays.The intelligent vehicle can predict various impending traffic conditions and gather the traffic information such as the distance,velocity etc,about the vehicles ahead.The full velocity difference(FVD)model is a widely applied car following model conforming to real traffic.In this dissertation,two FVD models with consideration of vehicle intelligence information are put forward,and the solitary wave solutions of them are studied by utilizing the reductive perturbation technique.The models are also analyzed by numerical simulation.Model 1 is a FVD model with consideration of the intelligence information and driver personal characteristics for the first time.The critical stability curve is obtained by the method of linear analysis,the solitary and kink solutions are derived by the nonlinear analysis of reductive perturbation technique.By using the computing program of MATLAB,the relationship diagrams between the speed and time,as well as those between the spacing and the number of vehicles are given.They are used to analyze the influences of the intelligence information and driver personal characteristics on the traffic flow.Model 2 is a FVD model with consideration of the prevision vehicle velocity of multiple preceding vehicles.Under the influence of the intelligence system,it's not only able to receive the prescient information of the preceding cars,but also receive the prescient information of multiple preceding cars.Stability condition is obtained by the method of linear analysis.The kink and stable solutions are obtained by the method of nonlinear analysis.By using the computing program of MATLAB,the relationship diagrams between the speed and time,as well as those between the spacing and the number of vehicles are given.They are used to analyze the influences of the vehicle number of receive prescient velocity on the traffic flow.