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Urban intersection traffic light intelligent time assignment control method and control system

A control method and technology for traffic lights, applied in the field of intelligent transportation, can solve problems such as imperfect means of judging traffic congestion and inability to judge traffic congestion in a timely manner.

Active Publication Date: 2019-08-23
东营市市政工程设计院
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Problems solved by technology

[0011] (3) Another technical problem is that the means of judging traffic congestion is not perfect, and it is impossible to judge the congestion situation at intersections in time and make the best timing of traffic lights

Method used

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  • Urban intersection traffic light intelligent time assignment control method and control system
  • Urban intersection traffic light intelligent time assignment control method and control system
  • Urban intersection traffic light intelligent time assignment control method and control system

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Embodiment Construction

[0058] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0059]The most typical problem in the current urban traffic is the time length and proportion of the traffic light at the intersection of the main road. Reasonable setting of the time length of the traffic light can reduce congestion and make the traffic smooth. On the contrary, an unreasonable time allocation scheme will increase the congestion problem and cause inconvenience to the people traveling. The timing scheme of the duration of traffic lights is worth studying. There are many research results at home and abroad on this issue, but many studies have not been practically applied to urban traffic control.

[0060] In...

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Abstract

The invention belongs to the technical field of the intelligent traffic, and discloses an urban intersection traffic light intelligent time assignment control method and a control system. The urban intersection traffic light intelligent time assignment control method comprises the following steps: establishing a vehicle average delay function, converting the intersection traffic light optimum timeassignment into the traffic signal light allocation time when solving the minimum function; and solving the traffic signal light allocation time when the d is the minimum value by using a genetic algorithm. By utilizing classical green light and red light time of four phases, the p and q are a pair, the N and M are a pair, the S1 and the S2 are a pair, and the Q1 and Q2 are a pair, wherein each of the above pair represents two relative vehicle flows in a phase intersection, the g1, g2, g3 and g4 represent the green light time of each phase. The control method disclosed by the invention is reasonable in running result; the time assignment scheme is obtained by using a method for obtaining the minimum value of the road delay function; and the traffic congestion condition of the urban can beimproved after using the time assignment way.

Description

technical field [0001] The invention belongs to the technical field of intelligent transportation, and in particular relates to an intelligent timing control method and control system for urban intersection traffic lights. Background technique [0002] Currently, the closest prior art: [0003] The Intelligent Transportation System (ITS for short) is the development direction of the future transportation system. It effectively integrates advanced information technology, data communication transmission technology, electronic sensor technology, control technology and computer technology, etc. It is a real-time, accurate and efficient integrated traffic management system established by the traffic management system that plays a role in a wide range and in an all-round way. ITS can make effective use of existing traffic facilities, reduce traffic load and environmental pollution, ensure traffic safety, and improve transport efficiency. Therefore, it is increasingly valued by va...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/07G08G1/096
CPCG08G1/07G08G1/096
Inventor 李飞周钰谦张秋萍刘亮
Owner 东营市市政工程设计院
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