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Optimization arrangement method of rapid road network traffic sensing 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, increasing capital investment, etc.

Active Publication Date: 2016-03-23
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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  • Optimization arrangement method of rapid road network traffic sensing network
  • Optimization arrangement method of rapid road network traffic sensing network
  • Optimization arrangement method of rapid road network traffic sensing network

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying 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 layout of an expressway network traffic sensor network, the method comprising dividing the expressway network, establishing a road network traffic flow model, laying out a traffic sensor network, and optimizing the traffic sensor network in four steps:

[0027] Step 1: Divide the expressway network: First, the Beijing Third Ring Expressway has a total of 124 ramps, including 62 entrance ramps and 62 exit ramps. Accordingly, the Beijing Third Ring Expressway can be divided into 124 road sections, namely 124 cells. Secondly, the Beijing Third Ring Expressway has a change in the number of lanes in different road sections, so the cell must be divided twice at each lane change position. Again, t...

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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 transportation, and in particular relates to an optimal layout method of an urban expressway network traffic sensor 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 seriously affects 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 investment in infrastructure construction. At present, many cities in my country have built or are building expressway networks, such as Beijing's "ring-shaped" expressway and Shanghai's "Shen"-shaped expressway. Other cities such as Suzhou, Wuhan, and Zhengzhou have also built a certain scale. urban expressway. [0003] The urban expressway network provides a conveni...

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Application Information

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Patent Type & Authority Applications(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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