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An optimal layout method of traffic sensor network in express road network

A sensor network and road network technology, applied in the field of urban transportation, can solve the problems of not being able to give full play to the maximum effect of the detector and increasing capital investment.

Active Publication Date: 2019-05-17
四川蜀通信息科技有限公司
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Problems solved by technology

Although this method can obtain the traffic information of each road section in real time, it is convenient for real-time observation and analysis of the operation status of each road section, but it also greatly increases the capital investment, and cannot give full play to the maximum effect of each detector.

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  • An optimal layout method of traffic sensor network in express road network
  • An optimal layout method of traffic sensor network in express road network
  • An optimal layout method of traffic sensor network in express road network

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Embodiment Construction

[0024] The present invention will be described in detail below with reference to the drawings and implementation examples.

[0025] The present invention is described by taking the outer ring of Beijing Third Ring Expressway as an example.

[0026] A method for optimizing the deployment of a traffic sensor network for an express road network. The method includes four steps: dividing the express road network, establishing a road network traffic flow model, deploying a traffic sensor network, and optimizing the traffic sensor network:

[0027] Step 1: Divide the expressway network: First, the Beijing Third Ring Expressway has a total of 124 ramps, including 62 entry ramps and 62 exit ramps. Based on this, the Beijing Third Ring Expressway can be divided into 124 sections, namely 124 Cells. Secondly, the Beijing Third Ring Expressway has changes in the number of lanes in different sections, so the cell must be split twice at each lane change position. Thirdly, the Beijing Third Ring E...

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Abstract

The invention discloses an optimization arrangement method of a rapid road network traffic sensing network. According to the method brought forward by the invention, traffic sensing networks are arranged only at certain roads of a rapid road network for directly obtaining traffic parameters, and it is ensured that the whole system is observable; and traffic parameters of roads without the traffic sensing networks can be obtained through deduction from the obtained traffic parameters of the roads with the traffic sensing networks, a road network traffic flow model and historical data. In such a way, arrangement of the traffic sensing networks in a rapid road network can be optimized, the investment cost of road facilities is reduced, the utilization efficiency of traffic sensors is improved, an important basic guarantee is provided for traffic state estimation and ramp adjustment of a city rapid road network, and accordingly, a basis is provided for making a scheme for improving city traffic congestion.

Description

Technical field [0001] The invention belongs to the technical field of urban traffic, and specifically relates to an optimized deployment method of a traffic sensor network of an urban express road network. Background technique [0002] In recent years, with the acceleration of urbanization, the number of motor vehicles has increased year by year, and traffic congestion has become increasingly prominent. This not only has a serious impact on the daily life of residents, but also greatly hinders the economic development of the city. In order to solve the problem of traffic congestion, government departments have increased their investment in infrastructure construction. At present, many cities in my country have built or are constructing expressway networks, such as the "circular" expressway in Beijing, the "Shen" expressway in Shanghai, and other cities such as Suzhou, Wuhan, and Zhengzhou. City expressway. [0003] The urban express road network provides convenient and fast acces...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G08G1/01
CPCG06Q10/04G08G1/012G08G1/0129
Inventor 陈阳舟郭宇奇代桂平王莹李伟吴远航
Owner 四川蜀通信息科技有限公司
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