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Traffic light intelligent control method based on road real-time capacity

A technology of intelligent control and real-time capacity, applied in the field of traffic communication, can solve problems such as not considering the impact of road remaining capacity

Pending Publication Date: 2020-11-06
XIAN UNIV OF TECH
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AI Technical Summary

Problems solved by technology

However, most of the existing adaptive traffic light control methods consider the queue length without considering the impact of the remaining road capacity on adjacent intersections.

Method used

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  • Traffic light intelligent control method based on road real-time capacity
  • Traffic light intelligent control method based on road real-time capacity
  • Traffic light intelligent control method based on road real-time capacity

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Embodiment Construction

[0065] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0066] The present invention is a kind of traffic light intelligent control research based on road real-time capacity, comprises the following steps:

[0067] Step 1: Optimize the green light duration of each phase according to the DQN algorithm and real-time traffic flow information;

[0068] For the convenience of analyzing the problem, we agree on the following assumptions and definitions:

[0069] 1) The vehicle arrives at the intersection with a Poisson flow whose parameter is λ;

[0070] 2) The vehicle knows its own speed v and current location;

[0071] 3) In the following, for the convenience of expression, the initial green light duration is set to a second after the action is taken.

[0072] 4) The vehicle arrives at the intersection with the Poisson flow whose parameter is λ, and the probability density function of the Poisson f...

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Abstract

A traffic light intelligent control method based on road real-time capacity comprises the following steps of 1, calculating phase initial green light duration according to real-time traffic flow information, and optimizing the green light duration of each phase by using an algorithm, 2, judging whether the green light duration is reasonable or not, and performing fine adjustment to avoid traffic jam caused by overlong green light duration of a certain phase, 3, calculating the road flow processing capacity according to the real-time traffic flow information, and calculating the phase priorityin combination with the vehicle queuing length and the vehicle average waiting time, and 4, enabling the phase green light duration and the phase sequence to act on the traffic lights. The method hasthe characteristic of solving the problem of road congestion by reasonably utilizing the real-time capacity of the adjacent roads.

Description

technical field [0001] The invention belongs to the technical field of traffic communication, in particular to an intelligent control method for traffic lights based on the real-time capacity of roads. Background technique [0002] According to statistics from the Ministry of Commerce, the number of cars in China reached 250 million in 2019. Humans originally invented cars to bring convenience to their own travel and life, but with the surge in the number of vehicles, traffic congestion has become increasingly serious, which in some cases has brought inconvenience to people's travel and caused many social problems, such as Frequent traffic accidents, serious air pollution and traffic congestion, etc., these problems not only affect people's travel comfort, pollute the environment but also hinder the development of cities. Therefore, a communication technology is needed to alleviate the above problems. The study found that realizing efficient traffic light control at traffi...

Claims

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Application Information

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IPC IPC(8): G08G1/08G08G1/082G08G1/083G08G1/09G08G1/095
CPCG08G1/08G08G1/082G08G1/083G08G1/09G08G1/095
Inventor 樊秀梅蔡含宇胡倩儒
Owner XIAN UNIV OF TECH
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