Study On Pedestrian And Vehicle Interference At Signalized Intersection Based On Cooperative Game Theory

Pedestrian and vehicle interference exists widely at urban intersections, which brings the increase of delay, the decline of traffic capacity as well as great security risk. But the researches on pedestrian and vehicle interference domestic and abroad are lacking mature micro model and perfect theoretical system. This paper makes deep research on pedestrian and vehicle interference. Pedestrian and vehicle interference mechanism is explored, and a micro decision-making model about the crossing of pedestrian and vehicle is established.This paper focuses on the following questions:1. Study on pedestrian and vehicle interference mechanism under the consideration of the bicycle influence at the upstream of intersectionThe vehicle activity areas crossing the intersection are divided according to the video observations. Through comparative analysis of the speed and headway change of vehicle crossing the intersection with and without vehicle-bicycle interference, the influence of upper vehicle-bicycle interference area on the vehicle operation characteristics before and after it crossing the vehicle-pedestrian interference area as well as the influence on the behavior and crossing decision of vehicle when it has interference with pedestrian are studied. The micro-behavior of pedestrian and vehicle when they are crossing each other and the crossing influencing factors are explored. The impact of pedestrian and vehicle interference on mixed traffic flow operation characteristics is analyzed form the aspects of velocity and headway.2. Establishment of the micro decision-making model about the crossing of pedestrian and vehicleThe bimatrix game model is established. Using the existing definition of pedestrian crossing risk coefficient, the risk coefficient critical value is obtained according to real samples, and is taken as criteria to reach a binding agreement between pedestrian and vehicle. The Nash bargaining problem and related solution to the game between pedestrian and vehicle are put forward. It is proved that the availability of cooperative game model is good, and it has better prediction accuracy.The innovation of this paper:the consideration of adjacent interference area when pedestrian and vehicle interference mechanism is explored, the micro decision-making model about the crossing of pedestrian and vehicle based on cooperative game theory.