Guide lane signal control method for realizing go-straight and left turning changing at road intersection

Abstract

The invention, which relates to the technical fields of traffic information and control, provides a guide lane signal control method for realizing go-straight and left turning changing at a road intersection. The method comprises: a running rule of a lane is made and a variable arrow signal light is set; main signal timing is calculated by using a Webster formula; according to a phase difference between a pre signal and a main signal, pre signal timing is determined; and a pre signal light, a lane-changing prompting mark line and a traffic sign are set to realize cyclic changing between a go-straight lane and a left turning lane for a guide lane. According to the method provided by the invention, a lane at the entrance of a road intersection is set to a viable guide lane shared by left turning and going straight; and the road resources are allocated again based on the function of pre-signal-based real-time transformation of the go-straight and left turning of the variable guide lane under the condition of the traffic flow with unbalanced layout, so that the utilization rate of the traffic facility of the road intersection is increased.

Description

technical field [0001] The invention relates to the technical field of traffic information and control, in particular to a signal control method of a guiding lane with variable straight-going and left-turning at road intersections. Background technique [0002] At present, the problem of urban traffic congestion has attracted more and more attention, seriously affecting people's travel efficiency and quality of life. Among them, the management and control of left-turn motor vehicles at road intersections is a difficult problem to solve. When there is a left-turn special lane, the existing method can basically meet the traffic demand during peak hours; but in the off-peak period, due to the reduction of left-turn traffic volume, the space utilization rate of the left-turn lane is not high, and the flow of straight traffic is large. The space resources of through lanes are very tight. How to integrate and optimize the space-time resources of road intersections is the key to im...

AI Technical Summary

Problems solved by technology

[0004] Existing studies have proposed methods such as induction control, double stop line control, and main pre-signal control, but these studies have not clearly proposed the selection method of the changing time of the steering function of the variable directional lane, nor have they proposed how to implement the variable directional lane. Empty effectively

Therefore, the prior art lacks a reasonable method for coordinated control between the main pre-signals

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