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Method for coordinating and controlling urban arterial road group

A technology of coordinated control and urban arterial roads, applied in the traffic control system of road vehicles, traffic control system, traffic signal control, etc., can solve the problem of no control method

Inactive Publication Date: 2013-03-06
SOUTH CHINA UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For many arterial roads in the city and other intersections in the area, there is still no effective control method proposed

Method used

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  • Method for coordinating and controlling urban arterial road group
  • Method for coordinating and controlling urban arterial road group
  • Method for coordinating and controlling urban arterial road group

Examples

Experimental program
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Embodiment

[0094] It is known that there are four arterial roads A, B, C, and D in a certain control area of ​​a certain city. A and B, B and C, C and D, D and A intersect respectively, such as image 3 shown. The control period of this area is two hours (7200s), the space occupied by each vehicle is 7m, the unit of the flow rate is vehicle / hour, and the phase difference is the difference between the starting point of the red light. Table 1 shows the initial coordinated control parameter ranges of the four arterial road groups, and the internal coordination parameters of each arterial road are shown in Table 2, Table 3, Table 4, and Table 5.

[0095] Table 1 Initial coordinated control parameters of arterial road group

[0096]

[0097] Table 2 Coordination initial coordination control parameters of arterial road A

[0098]

[0099]

[0100] Table 3 Coordinated initial coordination control parameters of arterial road B

[0101]

[0102] Table 4 Initial Coordination Control P...

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Abstract

The invention discloses a method for coordinating and controlling an urban arterial road group. The method comprises the following steps of establishing a region control strategy according to the situation of an urban road network, and grading arterial roads in a region; setting an arterial road coordinating and control scheme step by step according to different grades of the arterial roads; using shortest average travel time on the arterial roads as an optimal object, determining the period of the arterial roads in lower priority grades according to intersected arterial roads in higher priority grades, and simultaneously optimizing phase difference in the arterial roads between arterial road groups; and regulating duration of upstream green lights and downstream green lights in the arterial roads according to no overflow in a large period of the arterial roads, preventing traffic jam from happening in a control period, and finally realizing the coordinating and the controlling of the urban arterial road group. The method disclosed by the invention is suitable for an urban area road network with an obvious arterial road structure, the travel delay of vehicles on the arterial roads can be effectively reduced, the traffic jam can be avoided, and the regional coordination and optimization can be realized.

Description

technical field [0001] The invention relates to coordinated control of regional traffic, in particular to a method for coordinated control of urban arterial road groups. Background technique [0002] Since entering the 21st century, with the rapid development of social economy, the number of motor vehicles has increased year by year, and traffic problems such as traffic pollution, traffic safety, and traffic congestion have become increasingly serious. Beijing, Shanghai, Guangzhou, Tianjin and other large and medium-sized cities have listed "no traffic jam" as the specific goal of the city's future development when planning the development of the "Twelfth Five-Year Plan". In order to solve traffic problems and avoid traffic congestion, it is necessary to ensure the smooth flow of urban roads. However, the existing intersection signal control system uses a single intersection as the control unit, which cannot meet the needs of urban managers to control and dredge traffic, cau...

Claims

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Application Information

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IPC IPC(8): G08G1/07G08G1/081
Inventor 徐建闽刘轼介
Owner SOUTH CHINA UNIV OF TECH
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