Urban road network traffic control subarea dynamic partitioning method

Abstract

The invention discloses an urban road network traffic control subarea dynamic partitioning method, which comprises the following steps of: 1, initializing a traffic control computer; 2, judging whether a current moment reaches to ta while not to tb yet, wherein if yes, a road network traffic state is represented to be at a trough, and traffic control subarea partitioning is not needed; and ta is the starting moment of the trough at night, tb is the finishing moment of the trough at night, and a traffic engineer confirms that the ta is 22:00 and the tb is 6:00; 3, if not, judging whether the current moment is tb or not, and if the current moment is just tb, carrying out traffic control subarea initialized portioning; 4, if the current moment is not tb, judging whether a time difference between the current moment and traffic control subarea partitioning last time is Tk or not, wherein if yes, carrying out traffic control subarea dynamic adjusting, and Tk is a traffic control subarea dynamic adjusting time interval; and 5, if the current moment is not tb, and the time difference between the current moment and traffic control subarea partitioning last time is not Tk, remaining a traffic control subarea scheme unchanged.

Description

technical field [0001] The invention relates to a method for controlling urban traffic, more precisely, the invention relates to a method for dynamically dividing urban road network traffic control sub-areas. Background technique [0002] The urban road network is composed of hundreds of different types of signal intersections. In order to improve its stability and control efficiency, the traffic signal control system needs to divide the road network into multiple areas of different shapes. Each area is a traffic control system. Sub-area, which consists of multiple closely connected adjacent signalized intersections. [0003] In order to improve the self-adaptive level of the traffic control system, the traffic control sub-area division method needs to have three characteristics: dynamics, accuracy and rapidity. However, the existing traffic control sub-area division methods still have the following deficiencies: [0004] 1. The division method of traffic control sub-area ...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the lack of systematicness in the existing traffic control sub-area division method, the single division target, and no adjustment after division, and it is difficult to adapt to changes in traffic conditions, and provides an urban road A method for dynamic division of network traffic control sub-areas

Images