Research On Conflict Model Of Straight And Left Turning Vehicles Based On Game

Many urban intersections are equipped with no left-turn dedicated phase,and such intersections and traffic control conditions are relatively backward.As the number of private car ownership increases year by year,there is no serious conflict between the direct-moving motor vehicle and the left-turning motor vehicle in the no-left-turn dedicated phase intersection.In particular,the direct-traveling vehicle during the peak hours no longer has absolute priority.Therefore,this paper takes the left-free dedicated phase intersection as the research object,and uses game theory to deeply study the conflict between the straight-through motor vehicle and the left-turn motor vehicle.The research work of this paper includes the following four aspects:(1)Analyze the characteristics of the straight-left-turn conflict,study the causes of the conflict,analyze the characteristics of the vehicle's driving trajectory,and determine the conflict area.(2)According to the characteristics of straight-left-turn conflict,the applicability of evolutionary game theory to this research is first analyzed.Secondly,a single conflict point evolution game model is established,and the evolution equilibrium point is obtained to determine the stability of the equilibrium point.The payment variables under different conditions and the initial probability of each are assigned respectively,and different initial values are evolved by MATLAB software.The evolution results show that When the participating individuals pay more than the let-off payment,the participating individuals choose to wait for the line.When the participating individuals' mutual payment is less than the let-off payment,the participating individuals choose to rush through,and the final evolution result is combined with the two-party strategy.related.Finally,establish a double conflict point evolution game model when the straight-through vehicle first occupies a certain conflict point,and find the evolutionary stability strategy.The results show that when the straight-through vehicle first occupies a certain conflict point,the left-turning vehicle chooses to wait next to the conflicting point or chooses to grab the line to occupy another conflicting point and the left-turning car's let-off payment and the size of the rushing payment.(3)Because the driving behavior is closely related to the driver's personality.Firstly,establish a game return matrix when the straight-through vehicle(left-turning vehicle)considering the driver's character first occupies the conflict point,and obtain the optimal strategy combination of the left-left game when the parameter values are different.Secondly,it is analyzed that when the straight-through car has the advantage to occupy the conflict point,it chooses the expected return of different strategies;when the left-turning car has the advantage to occupy the conflict point,consider the evolutionary stability strategy of the income.Finally,a straight-left-turn dynamic game model considering the driver's personality factors is established,and the dynamic game process is described in detail,and the model is analyzed.(4)Select the typical intersection of Xi'an,take video and extract the analysis data,and verify the model established in this paper.The results show that the model can effectively describe the game law of the straight-left-turn conflict without the left-hand dedicated phase intersection.According to the driver's driving behavior,the driver's personality can be judged more accurately.Finally,the straight line and left of the example intersection are reduced.Suggestions for conflicts.