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Subarea coordination adaptive control method and device

A technology of adaptive control and coordinated control, applied in traffic control system, traffic control system of road vehicles, traffic flow detection, etc., can solve problems such as poor applicability and reduced traffic guidance effect.

Active Publication Date: 2021-09-14
SHENZHEN URBAN TRANSPORT PLANNING CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing sub-area coordinated control, the signal control scheme of each intersection is fixed, and the applicability is poor. When the traffic flow in the road network changes, the traffic guidance effect of the control scheme of each intersection will be reduced.

Method used

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  • Subarea coordination adaptive control method and device
  • Subarea coordination adaptive control method and device
  • Subarea coordination adaptive control method and device

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Embodiment Construction

[0039] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0040] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein.

[0041] It should be noted that the cycle time refers to the time required for the signal to run a cycle when the signal light at the intersection changes, which is equal to the sum of the time of the green light, yellow light, and red light.

[0042] The gree...

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Abstract

The invention provides a subarea coordination adaptive control method and device. The method comprises the following steps of acquiring real-time traffic state data of each intersection of a calibrated subarea and signal timing data of coordination control; solving in combination with the signal timing data and a pre-established mixed integer linear programming model to obtain a green wave band position; generating a green wave guarantee constraint of each intersection according to the green wave zone position and the signal timing data; generating a single-point constraint condition of each intersection according to the real-time traffic state data, determining a traffic state of each intersection according to the real-time traffic state data, and generating an optimization target of each intersection according to the traffic state; and performing optimization according to the green wave guarantee constraint, the single-point constraint condition and the optimization target of each intersection, and determining a control scheme of each intersection. According to the method, the control scheme of each intersection can be dynamically adjusted according to the change of the traffic volume while coordination control is carried out on each intersection.

Description

technical field [0001] The present invention relates to the technical field of traffic signal control, in particular to a sub-area coordinated adaptive control method and device. Background technique [0002] With the rapid increase of car ownership, when controlling hundreds of intersections in the urban road network, the road network is often divided into multiple independent areas, each area contains one or adjacent Multiple intersections, the area is the sub-area in traffic control. [0003] Sub-area coordinated control refers to the linkage of traffic signals at each intersection in a sub-area for coordinated control, which can improve the efficiency of road network traffic and is an effective way to solve regional traffic congestion. However, in the existing sub-area coordinated control, the signal control scheme of each intersection is fixed, and the applicability is poor. When the traffic flow in the road network changes, the traffic guidance effect of the control s...

Claims

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Application Information

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IPC IPC(8): G08G1/081G08G1/01
CPCG08G1/081G08G1/0125
Inventor 周勇邹莉陈振武王宇罗佳晨刘星杨肇琛
Owner SHENZHEN URBAN TRANSPORT PLANNING CENT
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