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Identification method based on queuing detector information bottleneck state

A state recognition and information bottleneck technology, applied in traffic flow detection, instruments, traffic control systems, etc., can solve problems such as poor control effect, disconnection, and engineering application difficulties

Inactive Publication Date: 2014-05-21
ZHEJIANG UNIV
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  • Abstract
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Problems solved by technology

[0004] At present, there are very few research results on bottleneck state identification methods, and most of the algorithms are still in the theoretical research stage, which is seriously out of touch with the actual situation, and engineering applications are difficult; in addition, most of the existing research results are based on traffic information after queuing up to identify road sections Bottleneck, resulting in the implementation of the bottleneck control plan too late, the control effect is not good

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  • Identification method based on queuing detector information bottleneck state
  • Identification method based on queuing detector information bottleneck state
  • Identification method based on queuing detector information bottleneck state

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Embodiment Construction

[0078] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0079] The method for identifying the bottleneck state of the invention is based on the detection information of the queuing detector. The method can use the real-time detected traffic flow information to analyze the traffic status of the road section, timely and accurately judge the bottleneck state of the road section, and provide a basis for alleviating the traffic pressure of the road section and avoiding the phenomenon of queuing upwards.

[0080] refer to figure 1 , which illustrates the overall flow of the method for identifying the bottleneck state of the present invention. This bottleneck state discrimination method is composed of two parts: hardware and software. It not only includes hardware equipment such as data acquisition equipment, signal machine and server, but also completes the calculation of rolling occupancy, the determination of bottleneck tri...

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Abstract

The invention discloses an identification method based on a queuing detector information bottleneck state. The identification method provided by the invention comprises the following steps of: adopting the detection information of a queuing detector as a foundation; and carrying out real-time discrimination on a road section transportation state by taking the continuously occurring number of occupancies of rolling time exceeding a threshold as a discrimination index, and distinguishing the position of a detector as a bottleneck state when a queue length is greater than or equal to the distance of the queuing detector and the stop line. The identification method provided by the invention adopts the rolling time occupancy as the discrimination index of the bottleneck state, and improves the discrimination real-time property of the bottleneck state.

Description

technical field [0001] The invention relates to the technical field of bottleneck state identification, in particular to a bottleneck state identification method based on queuing detector information. Background technique [0002] With the increasing urban traffic congestion, the traffic flow of many nodes is often in an oversaturated state, and even the queue length of some road sections is close to or equal to the length of the road section, and the phenomenon of queuing upwards occurs, forming a "bottleneck" of the road section, which seriously affects the urban road network. Efficiency of traffic flow. Generally, when the queue length of a road segment is close to the length of the road segment, the traffic state of the road segment can be considered as a "bottleneck state", and the road segment can be called a bottleneck road segment. The bottleneck state belongs to a special oversaturated state, which is the performance of the extreme deterioration of the road traffic...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G08G1/052
Inventor 马东方王殿海韦薇金盛孙峰
Owner ZHEJIANG UNIV
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