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A Layered Dynamic Coordinated Control Algorithm and Control Method for Urban Roads

A dynamic coordination and control algorithm technology, applied in the traffic control system of road vehicles, traffic control systems, instruments, etc., can solve the problems of ignoring the rapid traffic capacity of urban expressways, comprehensive consideration, and ignoring the path optimization ability of ordinary roads, etc.

Active Publication Date: 2019-08-16
HENAN POLYTECHNIC UNIV
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AI Technical Summary

Problems solved by technology

However, the existing methods for alleviating urban road congestion generally only study one of them separately, and do not consider the two comprehensively.
A single study of ordinary roads ignores the rapid traffic capacity of urban expressways; a single study of ramps ignores the path optimization capabilities of ordinary roads

Method used

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  • A Layered Dynamic Coordinated Control Algorithm and Control Method for Urban Roads
  • A Layered Dynamic Coordinated Control Algorithm and Control Method for Urban Roads
  • A Layered Dynamic Coordinated Control Algorithm and Control Method for Urban Roads

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Embodiment

[0083] Such as figure 1 , figure 2 , image 3 and Figure 4 Shown, a kind of urban road hierarchical dynamic coordination control technology is characterized in that it is realized through the following steps:

[0084] Step 1 as figure 1 As shown, considering the city as a whole, urban roads are divided into ordinary road layer, ramp layer and express road layer by layering technology;

[0085] Step 2: According to S4 adjacent intersection correlation degree algorithm

[0086]

[0087] In the formula, D s(i→j) is the correlation degree of road traffic volume in the i→j direction; D c(i→j) is the periodic correlation degree between intersection i and intersection j: N E(i→j) is the number of existing associated traffic vehicles on the i→j direction road section, including the number of queuing vehicles and the number of driving vehicles, which can be obtained in real time through the magnetic induction coil set on the road section; N A(i→j) L is the maximum associat...

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Abstract

The invention discloses an urban road layering dynamic coordination control algorithm and a control method. An urban road is longitudinally divided into three layers and transversely divided into different control sub-areas. The control range and control parameters of each sub-area on different layers are dynamically updated according to real-time dynamic traffic data to achieve an aim of dynamic coordination control of the traffic flow on each layer of the urban road. Checking analysis indicates that the urban road layering coordination control technology obviously increases the average speed of a vehicle, vehicles on each layer can quickly leave each sub-area, and the problem of traffic stream congestion of urban road is effectively relieved.

Description

technical field [0001] The invention relates to the field of urban road traffic control, in particular to an urban road hierarchical dynamic coordination control algorithm and control method. Background technique [0002] The modern urban traffic network includes not only ordinary roads, but also expressways that are only for vehicles to pass quickly. These two types of road networks are connected together by ramps to form a complex nonlinear time-varying traffic network. Therefore, it is of great significance to realize the coordinated control of the two to improve the traffic conditions of the whole city. [0003] At present, due to the complexity and nonlinear time-varying nature of traffic network in urban roads, many scholars at home and abroad have conducted in-depth research on different types of urban roads. However, the existing methods for alleviating urban road congestion generally only study one of them separately, and do not consider the two comprehensively. A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01
CPCG08G1/0137
Inventor 钱伟景辉鑫王俊峰李冰锋陶海军杨蒙蒙
Owner HENAN POLYTECHNIC UNIV
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