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Traffic signal optimization control method for vehicle queuing overflow state at road intersections

A queuing overflow and optimization control technology, applied in the field of intelligent transportation, can solve the problem that image monitoring and control signal lights cannot be applied to queuing overflow optimization control, etc.

Active Publication Date: 2014-11-19
ANHUI KELI INFORMATION IND
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AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the defect that the image monitoring and control signal lights in the prior art cannot be applied to the optimal control of queuing overflow, and to provide a traffic signal optimal control method for the state of vehicle queuing overflow at road intersections to solve the above problems

Method used

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  • Traffic signal optimization control method for vehicle queuing overflow state at road intersections
  • Traffic signal optimization control method for vehicle queuing overflow state at road intersections
  • Traffic signal optimization control method for vehicle queuing overflow state at road intersections

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Embodiment Construction

[0052] In order to have a further understanding and understanding of the structural features of the present invention and the achieved effects, the preferred embodiments and accompanying drawings are used for a detailed description, as follows:

[0053] As shown in 1, a kind of traffic signal optimization control method that is used for the overflow state of road intersection vehicle queuing according to the present invention, comprises the following steps:

[0054]The first step is to obtain the traffic flow parameters of the road intersection. The installation position of the queue overflow detector is calculated according to the length of the road section between the intersections, the width of the intersection, the congestion density and the density of vehicles reaching the end of the queue. The overflow detector and the vehicle detector are the same product, but the installation positions are different, and they are technologies in the prior art, which can monitor the pas...

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Abstract

The invention relates to a traffic signal optimization control method for the vehicle queuing overflow state at road intersections, and overcomes the defect that an image monitoring and control signal lamp cannot apply to queuing overflow optimization control compared with the prior art. The method of the invention comprises the following steps: traffic flow parameters of a road intersection are acquired; the queuing length is calculated; the queuing overflow state at the road intersection is judged; and the green light time of an upstream intersection is calculated. The queuing length parameters and queuing overflow events are detected in real time by vehicle detectors installed at the entrances and the exits of road intersections, and balancing of the queuing lengths of all intersections in a region is realized by adjusting the green light time of traffic signal control, thus solving the problem of queuing overflow at intersections.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a traffic signal optimization control method for vehicle queuing overflow state at road crossings. Background technique [0002] Due to the imperfect planning and design of roads in many cities in our country, short-distance intersections appear between many roads in urban areas, that is, the distance between two intersections is very short. Due to the short waiting distance of vehicles at short-distance intersections, queue overflow often occurs. Queue overflow refers to the phenomenon that vehicles at the entrance of the downstream intersection exceed the upstream intersection. At present, queue overflow can only be solved by ordinary manual traffic signal control or manual command, and intelligent detection of queue overflow and intelligent traffic signal control cannot be used to solve such problems. Although there are also some technologies that propose t...

Claims

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Application Information

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IPC IPC(8): G08G1/08
Inventor 张博宋志洪梁子君于海洋宣林川
Owner ANHUI KELI INFORMATION IND
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