A method for dissolving traffic conflicts between two vehicles at unsignalized intersections

Abstract

The invention discloses a method of resolving traffic conflicts of two vehicles at a no-signal intersection, mainly solving the problem of collision of two vehicles at an intersection. The method comprises: first, collecting the information of two vehicles, and predetermining whether two vehicles conflict at an intersection according to the time of the two vehicles arriving at the intersection; second, building an analytical hierarchy structure to determine the priority of the conflict vehicles; employing a PID controller to control the time of two vehicles arriving at a conflict area so as to resolve conflicts, and optimizing parameters of the PID controller; and finally building a gaming model to optimize a conflict resolving strategy and to allow the two vehicles to pass through the intersection within shortest time. The method employs the PID controller to control the time of two vehicles arriving at a conflict area so as to resolve conflicts, and optimizes parameters of the PID controller, thereby increasing the efficiency of solving conflicts between two vehicles, and reducing traffic conflicts at an intersection.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a method for resolving traffic conflicts between two vehicles at an unsignalized intersection. The present invention can be used to predict and resolve conflicts between two vehicles at unsignalized intersections. According to the time when the two vehicles arrive at the intersection, it is predicted whether the two vehicles conflict at the intersection. If conflicts occur, a hierarchical analysis structure is established to determine the priority of conflicting vehicles. , the proportional-integral-differential PID controller is used to resolve the conflict, and the parameters of the proportional-integral-differential PID controller are optimized, and the game model is established to optimize the conflict resolution strategy, which improves the safety and efficiency of vehicles passing through the intersection. Background technique [0002] At present, cities usually...

AI Technical Summary

Problems solved by technology

The shortcomings of this method are that, firstly, this method only determines the priority of vehicles according to traffic rules, which may cause the problem that the driver's accident responsibility is not clear; secondly, although this method can improve the safety of vehicles to a certain extent , the controller is not used to control, and the control accuracy is not enough. Finally, this method does not optimize the conflict resolution strategy, resulting in the problem that the execution efficiency of the conflict resolution strategy is not high

The disadvantage of this method is that not only the status information of the own vehicle and other vehicles needs to be collected, but also the geographical location information of the intersection needs to be collected, and too much data information is required for conflict judgment and resolution.

[0005] Guo Weiwei, Qu Zhaowei, and Wang Dianhai first described the conflict object based on kinematics theory in their paper "Traffic Conflict Discrimination Model" ("Jilin University Journal" Engineering Science Edition, 2011, 41(1): 35-40). Then analyze the movement rules between conflicting objects, and finally establish a model describing the critical conflict area to determine the criteria for conflict occurrence. The disadvantage of this method is that the model does not provide a method for resolving vehicle conflicts.

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