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A time control method and system for a single intersection signal light

A time control system and time control technology, applied in the direction of traffic signal control, can solve the problems of unscientific control of signal lights, no consideration of the number of queuing vehicles, etc., and achieve the effect of scientific distribution, avoiding the limitation of fixed cycles, and flexible control

Active Publication Date: 2019-05-24
河南千波通信设备有限公司
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Problems solved by technology

[0008] The purpose of the present invention is to provide a single intersection signal light time control method to solve the problem that the current signal light time control does not consider the number of queuing vehicles leading to unscientific control of signal lights

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  • A time control method and system for a single intersection signal light
  • A time control method and system for a single intersection signal light
  • A time control method and system for a single intersection signal light

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Embodiment Construction

[0037] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0038] Embodiment of the present invention a kind of single intersection signal light time control method

[0039] Aiming at the situation of single intersection traffic congestion, the invention proposes a single intersection signal light time control method to solve the problem that the current signal light time control does not consider the number of queuing vehicles leading to unscientific control of the signal light.

[0040] 1. Divide the vehicle queuing status into n according to the four incoming directions of the single intersection and the different number of queuing vehicles in each vehicle queuing status k type, n is the type of vehicle queuing length, and k is the number of lanes at a single intersection.

[0041] The targeted single intersection in this embodiment is as figure 1 As shown, Z1, Z2, Z3, and Z4 are the areas wher...

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Abstract

The present invention relates to a single intersection signal lamp time control method and system, belonging to the traffic transportation control technology field. The single intersection signal lamp time control method and system divide vehicle queuing states into nk types according to four vehicle coming directions at the single intersection and the different numbers of queuing vehicles in each type of the vehicle queuing states, wherein n is the type of vehicle queuing length, k is the number of lanes at the single intersection; the number of traffic signal phases, the minimum time of each phase, the number of added time period of a green light and the length of each time period are taken as traffic behaviors; and learning is performed through adoption of the Q learning method according to the divided vehicle queuing states and the determined traffic behaviors. Through changing the definition of the state space, the vehicle queuing states divided by single intersection signal lamp time control method and system are more identical to the actual condition of the intersection to allow the time distribution of the green light to be more scientific.

Description

technical field [0001] The invention relates to a single intersection signal lamp time control method and system, belonging to the technical field of traffic transportation control. Background technique [0002] At present, many cities are plagued by traffic congestion. How to build an efficient transportation system has become the top priority of urban construction. Many fully developed cities can hardly expand traffic roads, that is, there is no space for development in space, so many methods of traffic theory have been studied in terms of time, that is, many theoretical algorithms for traffic signal control have been proposed. [0003] The document "Traffic light control in non-stationary environment based on multi agent Q-learning" (hereinafter referred to as Adboosd's method) provides a single intersection signal light time control method, which divides the four incoming traffic directions of a single intersection Queuing states for 24 different vehicles, as shown in T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/08
CPCG08G1/08
Inventor 张柯张江维孙刚于洋程菊明王奎甫王闯
Owner 河南千波通信设备有限公司
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