Method and device for controlling traffic signals of intersections

A technology of traffic signals and control methods, applied in the direction of control of traffic signals, etc., can solve the problem of the decline of the traffic capacity of a large-scale road network, and achieve the effect of reducing the decrease of traffic capacity and the amount of entry.

Active Publication Date: 2011-04-06
QINGDAO HISENSE TRANS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a traffic signal control method and device at an intersection, which is used to solve the defect in the prior art that the traffic capacity of a large-scale road network is

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  • Method and device for controlling traffic signals of intersections
  • Method and device for controlling traffic signals of intersections
  • Method and device for controlling traffic signals of intersections

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Embodiment Construction

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0018] figure 1 Be the flow process of intersection traffic signal control method of the present invention Figure 1 , figure 2 It is a schematic diagram of the installation position of the congestion detector in the embodiment of the traffic signal control method at the intersection of the present invention. Such as figure 1 and figure 2 A...

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Abstract

The invention provides a method and device for controlling traffic signals of intersections. The method for controlling traffic signals of intersections comprises the following steps: (1) detecting whether the road between an upstream intersection and a downstream intersection is congested or not by a congestion detector, wherein the congestion detector is arranged between the upstream intersection and the downstream intersection; and (2) if the road is congested, prolonging the time of the green light of the downstream intersection or shortening the time of the green light of the upstream intersection. When the road is congested, by prolonging the time of the green light of the downstream intersection, vehicles on the congested road can pass through the downstream intersection and run away from the congested road because of longer green light time, so that the congested road can be unblocked quickly; or by shortening the time of the green light of the upstream intersection, the number of the vehicles running on the congested road is reduced, so that the congested road can also be unblocked quickly, thereby realizing the purpose of reducing the occurrence of the phenomenon that the traffic capacity of the road network in a large range is lowered because a single intersection is congested.

Description

technical field [0001] The invention relates to the technical field of traffic control, in particular to a traffic signal control method and device at an intersection. Background technique [0002] At present, with the improvement of people's living standards, cars are widely used in people's daily life. Simultaneously, the quantity of automobile is also increasing day by day, and traffic pressure is increasing, especially the traffic pressure at road intersection place is bigger. [0003] Large-scale traffic congestion in the urban road network is often formed by the diffusion of individual intersections. The queued vehicles at the blocked intersection trace back to the upstream intersection, resulting in the continuous expansion of the traffic congestion area, which eventually leads to the queuing "domino" in the urban road network. "The occurrence of the phenomenon. Therefore, in the prior art, it is easy to appear the phenomenon that the traffic capacity of a large-sca...

Claims

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Application Information

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IPC IPC(8): G08G1/07G08G1/08
CPCG08G1/08
Inventor 陈晓明冯远宏王志明秦晓松
Owner QINGDAO HISENSE TRANS TECH
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