Traffic control method and traffic control device

A traffic control and traffic flow technology, applied in traffic control system, traffic control system of road vehicles, control of traffic signals, etc., can solve problems such as unfavorable driving safety, short green light time and cycle time, and reduced traffic capacity at road intersections.

Active Publication Date: 2016-07-20
ZHEJIANG DAHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

If the road intersection is in a highly saturated or oversaturated situation, and the minimum delay at the road intersection is still the optimization goal, the resulting green light time and cycle time are too small, which will lead to a decrease in the traffic capacity of the road intersection, and is not conducive to driving safety

Method used

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  • Traffic control method and traffic control device
  • Traffic control method and traffic control device
  • Traffic control method and traffic control device

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Embodiment Construction

[0056] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0057] like figure 1 As shown, a flow chart of a traffic control method provided by an embodiment of the present invention, the method includes:

[0058] Step 101: Obtain the traffic flow at the road intersection;

[0059] Step 102: Determine the delay time constraint condition of the road intersection according to the traffic flow of the road intersection, the delay time constraint condition at least includes the flow balance constraint condition of the road intersection;

[0060] Step 103: Based on the goal that the flow of the road intersection tends to be balanced, determine the capacity coefficient in the flow balance constraints;

[0061] Step 104: Based on the minimum delay time target of the road intersection, determine the cycle duration of the road intersection and the green light of each phase according to the traffic flow of the road inte...

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Abstract

The invention relates to the traffic control technology field, and provides a traffic control method and a traffic control device. The traffic control method is characterized in that a traffic flow of a road intersection is acquired; the delay time constraint condition of the road intersection is determined according to the traffic flow of the road intersection, and at least comprises the flow balance constraint condition of the road intersection; the passing capability coefficient of the flow balance constraint condition can be determined based on the target having the flow of the road intersection approximating to the balance; the cycle length of the road intersection and the duration of the green light of every phase can be determined based on the target having the minimum delay time of the road intersection according to the traffic flow of the road intersection and the delay time constraint condition of the road intersection.

Description

technical field [0001] The invention relates to the technical field of traffic control, in particular to a traffic control method and device. Background technique [0002] Now urban traffic plays an important role in economic and social development, especially the traffic in the central area of ​​the city, the improvement of its operation efficiency can bring huge economic and social benefits. The most common means of traffic control in modern cities is to carry out traffic control through road traffic signal lights. Traffic control is carried out by using different colors (red, yellow, green) of signal lights to periodically change, and the signal cycle is divided into different time periods according to different traffic flow characteristics, so as to prevent conflicting traffic participants from obtaining passage at a certain time period at the same time to avoid traffic conflicts. The quality of signal control not only affects the traffic capacity of the road and the w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/00G08G1/08
Inventor 周善存夏贤磊陈强张兴明
Owner ZHEJIANG DAHUA TECH CO LTD
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