Self-adaptive traffic intersection signal light control method capable of realizing whole-course countdown and no time hopping

Abstract

The invention relates to a self-adaptive traffic intersection signal light control method capable of realizing whole-course countdown and no time hopping. The self-adaptive traffic intersection signal light control method includes steps of firstly, starting control; secondly, numbering various states; thirdly, reading parameters; fourthly, computing a future jamming parameter b0 of a target phase and a maximum future jamming parameter b1 of an auxiliary phase; fifthly, obtaining future traffic state B0 of the target phase and future traffic state B1 of the auxiliary phase; sixthly, adjusting a current greenlight time Gi0 of the target phase according to policy matrix; seventhly, judging whether the Gi0 exceeds the preset range or not and processing correspondingly; eighthly, substituting the current greenlight time of the target phase for the Gi0 in the sixth step; and ninthly, judging whether to finish control, if yes, finishing the control, or returning to the second step. By the self-adaptive traffic intersection signal light control method is capable of realizing whole-course countdown and no time hopping, rear countdown time can be acquired for people, and traffic jam can be effectively alleviated.

Description

technical field [0001] The invention relates to a traffic intersection signal lamp control method, in particular to a traffic intersection signal lamp self-adaptive control method with full countdown and no jump, belonging to the technical field of urban intelligent traffic. Background technique [0002] At present, the traffic jams in various cities are becoming more and more serious. The traditional fixed-time traffic control method is difficult to adapt to the current traffic demand because it is not flexible enough. Now there is an adaptive control method that can optimize the control effect and has become the most widely used in cities. , Higher maturity traffic control technology. [0003] Most of the existing adaptive control methods have a countdown function, but it is still impossible to integrate the whole countdown, no jump, and the timing and actual time into one. [0004] For example, the Chinese invention patent with the patent number of 200610039226.8 and the...

AI Technical Summary

Problems solved by technology

The problem with this patented method is that although people can see the countdown number, the number does not represent the real time countdown, making it impossible for people to judge the real countdown time

The problem with this patented method is that it can only display a short period of time in the late stage of each color of the signal light, and can only guarantee the accuracy of this short period of time, and cannot realize the full countdown of each color light, so that people have to wait for the countdown to appear before they can learn the remaining time. The countdown time for

The problem with this patented method is that although the whole countdown can be realized, there are jumps in the countdown of the red light and the green light, which also makes it impossible for people to determine the real countdown time.

In this way, there will be the following problems: 1. The decision to increase or decrease the next passing time is simply based on whether the vehicles pass through within the passing time, instead of considering the specific traffic flow. The entire decision logic is too simple and it is difficult to apply to complex actual road conditions; 2. During the peak period of traffic flow, the phase with the largest traffic flow cannot be released first according to the traffic flow of each phase, and the backlog of vehicles cannot be effectively alleviated, which will easily lead to long-term traffic jams

It should be pointed out that the above-mentioned existing adaptive control method with countdown function also has the problem of only considering the passage of the target phase

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