Dynamic Allocation Method of Motor Vehicle Traffic Signals at Intersections

Abstract

The invention discloses a dynamic intersection motor vehicle traffic signal allocation method. On the basis of the signal lamp group optimization control logic, a single signal lamp group is used as acontrol unit; different green light releasing combinations are dynamically formed according to motor vehicle pass requirements in different directions; limitation of the traditional fixed phase releasing manner is broken through; the method is relatively suitable for an application scene that motor vehicle traffic flow distribution is not balanced ubiquitously in intersections of China; simultaneously, the green light releasing time of each signal lamp group can be adjusted in real time according to the dynamic traffic flow and the queuing length of motor vehicles; the queuing lengths in other waiting directions of an intersection are adjusted and controlled while the current releasing traffic flow green light pass time is effectively adjusted; and stop delay in various pass directions ofthe intersection is effectively reduced while the motor vehicle traffic flow control efficiency is comprehensively improved.

Description

technical field [0001] The invention relates to the technical field of traffic signal control, in particular to a method for dynamically deploying motor vehicle traffic signals at intersections based on signal lamp group optimization control logic. Background technique [0002] Most urban road intersections in my country have unbalanced distribution of motor vehicle traffic flow, large arrival randomness, and complex and changeable traffic conditions. The traditional motor vehicle traffic signal control method uses the signal phase as the basic control unit, especially the phase of symmetrical release. Combined application is more common, that is, two or more signal lights that control the opposite motor vehicle traffic flow at the intersection are combined into one signal phase, so that the opposite motor vehicle traffic flow at the intersection can be synchronized to obtain the green light time. This control method has great restrictions on the release of motor vehicle traf...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a dynamic allocation method for motor vehicle traffic signals at intersections. Based on the optimized control logic of the signal lamp group, it breaks through the traditional control idea of ​​using the signal phase as the basic control unit, and uses a single signal lamp group as an independent control unit. The optimal control logic algorithm of the group solves the problems of inflexible control methods and insufficient dynamic deployment capabilities of existing intersection signals, so as to further effectively improve the control efficiency of motor vehicle traffic signals at intersections

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