Traffic optimization control method based on intersection group

A technology of optimization control and intersection group, which is applied in the traffic control system of road vehicles, traffic control system, traffic signal control, etc., and can solve the problem that a single intersection cannot meet the needs of actual traffic control.

Inactive Publication Date: 2008-09-17
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiency that the minimum unit of traditional urban traffic control is a single int

Method used

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  • Traffic optimization control method based on intersection group
  • Traffic optimization control method based on intersection group
  • Traffic optimization control method based on intersection group

Examples

Experimental program
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Effect test

Embodiment 1

[0102] In this embodiment, Jingshi Road in Jinan City is selected as the research object, Qingnian East Road, Qianfoshan Road, and three intersections of Lishan Road and Jingshi Road are divided into "intersection groups" for implementation and control. The second "intersection group" of Jingshi Road in Jinan City includes Lishan Intersection, Qianfoshan Intersection and Shungeng Intersection. The distances between the two intersections are 700m and 400m respectively, which meet the conditions of the "Intersection Group". Figure 4 shown.

[0103] The traffic flow model of this "intersection group" is as follows: figure 1As shown, it contains three single intersections with C 1 , C 2 , C 3 To indicate that each single intersection in the "intersection group" has four directions: east, south, west, and north, and each direction has three lanes of traffic flow: right, straight, and left. Among them, the east-west direction is the direction of the main road. Each lane has two...

Embodiment 2

[0116] In this embodiment, Jingshi Road in Jinan City is selected as the research object, and the entire Jingshi Road is divided into multiple "crossing groups" for implementation control. The division method is 5 "crossing groups", that is, the intersection of Shanshi East Road To the intersection of Shanda Road, from the intersection of Shungeng Road to the intersection of Lishan Road, from the intersection of Weiyi Road to the intersection of Minsheng Street, from the intersection of Weishier Road to the intersection of Weiwu Road, from the intersection of Nanxinzhuang to the intersection of Jingqi Road ( Figure 4 represents the second "junction group").

[0117] Add a test vehicle from the entrance of the east end of Jingshi Road, start 10 times in the above two cases respectively, and get the results of the number of stops in Table 3 and Table 4.

[0118] By comparing the data in Table 3 and Table 4, it can be clearly seen that the average number of stops for 10 departur...

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Abstract

The invention discloses an optimal control method for intersection group traffic flow, which resolves the defect that the smallest unit of current urban traffic control is a single intersection, which cannot satisfy the needs of actual traffic control, can realize the optimization of local traffic flow, and provides helps for micro control of traffic flow. The steps of the method are:(1) real time acquiring actual traffic flow of ''intersection group'' on roads through a ground induction coil which has been paved in a city; (2) constructing an optimal control model with a smart approach and inferring and optimizing the parameters of a controller according to real-time traffic information;(3) the controller carrying out optimal control for traffic flow according to the control model.

Description

technical field [0001] The invention relates to a control method in the technical field of traffic flow control, in particular to a traffic flow optimization control method based on intersection groups. Background technique [0002] The smallest unit of traditional urban traffic flow control is a single intersection. Practice has shown that it is feasible to adopt an intelligent control algorithm for an isolated intersection when the traffic flow is small. However, multiple intersections in the urban traffic network If the distance is relatively close to each other and the traffic flow in the network is large, it will not work to still use the same algorithm. In response to this situation, the present invention effectively combines and divides the crossings in the traffic network, and the crossings that are far away from each other can be considered isolated, while two to three crossings that are very close to each other are combined. Controlled as a whole, this whole is ca...

Claims

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Application Information

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IPC IPC(8): G08G1/07G08G1/081G08G1/083G08G1/08
Inventor 朱文兴贾磊杨立才
Owner SHANDONG UNIV
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