Urban road network traffic control subarea dynamic partitioning method

A technology of traffic control and urban road network, which is applied in the traffic control system of road vehicles, traffic control system, traffic flow detection, etc., and can solve problems such as difficulty in adapting to changes in traffic conditions, single division targets, and no longer adjustments

Inactive Publication Date: 2014-04-30
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 tar...

Method used

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  • Urban road network traffic control subarea dynamic partitioning method
  • Urban road network traffic control subarea dynamic partitioning method
  • Urban road network traffic control subarea dynamic partitioning method

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Embodiment Construction

[0157] The present invention is described in detail below in conjunction with accompanying drawing:

[0158] refer to figure 2According to the method for dynamically dividing the urban road network traffic control sub-area according to the change of the road network traffic state, the division method of the road network traffic control sub-area is divided into two types: initial division and dynamic adjustment. The division method to be executed is automatically selected by the computer, and the traffic control sub-areas are divided. The method for dynamically dividing urban road network traffic control sub-area of ​​the present invention comprises the following steps:

[0159] 1. Traffic control computer initialization.

[0160] 2. Determine whether the current time has reached t a without reaching t b ? If it is, it means that the road network traffic state is at a low peak, and there is no need to divide the traffic control sub-area; t a is the starting time of low p...

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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 ...

Claims

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Application Information

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IPC IPC(8): G08G1/01G08G1/042G08G1/065
Inventor 宋现敏曲昭伟别一鸣王殿海李志慧胡宏宇陈永恒魏巍段宇洲邢岩
Owner JILIN UNIV
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