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Method for recommending signal timing scheme based on intersection similarity

A technology of signal timing and recommendation method, applied in the direction of controlling traffic signals, etc., can solve the problems of time-consuming, affecting the work efficiency of the scheme, and difficult to accurately reuse the timing scheme, and achieve the effect of improving work efficiency and accuracy.

Active Publication Date: 2019-07-16
ZHEJIANG UNIV OF TECH
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AI Technical Summary

Problems solved by technology

However, the traditional signal timing work requires timing personnel to conduct real-time surveillance video observations of relevant intersections, formulate plans according to actual conditions, and continuously observe the effects of the plans
This process not only requires a high level of experience for the time-matching personnel, but also consumes time and energy, and also affects the work efficiency of the plan distribution
On the other hand, due to the time difference caused by the dynamic characteristics of the traffic system itself and the differences in the intersection itself, it is difficult to accurately reuse a large number of timing schemes accumulated in the timing work to other intersections, resulting in a waste of resources

Method used

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  • Method for recommending signal timing scheme based on intersection similarity
  • Method for recommending signal timing scheme based on intersection similarity
  • Method for recommending signal timing scheme based on intersection similarity

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Embodiment Construction

[0024] In order to illustrate the technical characteristics of the present invention, the specific implementation steps of the present invention will be further described below in conjunction with the accompanying drawings. The specific implementation cases described here are only used to explain the present invention, rather than limit the present invention.

[0025] For this case, the recommended methods for its signal timing scheme include the following, as shown in the attached figure 1 Shown:

[0026] 1) Collect data, collect geographical information of intersections, and collect traffic flow data of corresponding intersections and timing scheme data of corresponding time periods through SCATS detectors.

[0027] 2) Preprocessing data, on the basis of step 1), cleaning and repairing the lack and abnormality of traffic flow and timing scheme data. Multiple imputation was used to complete the missing data. For the abnormal data, first use the Grubbs test method in statist...

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Abstract

A method for recommending a signal timing scheme based on intersection similarity comprises the following steps of 1) collecting intersection geographic information; 2) preprocessing data; 3) establishing an intersection model and a scheme model; 4) performing calculation of similarity on the target intersection and intersections in the database modules; and 5) evaluating the score module. The invention has the advantages that a method for recommending a signal timing scheme based on intersection similarity is proposed, the mass signal timing scheme can be recommended to the target intersection through the matching of intersection similarity to effectively improve the work efficiency and accuracy of the signal timing personnel, and the expert experience of the signal timing personnel is accumulated in the way of preserving the excellent timing schemes through the scoring mechanism.

Description

technical field [0001] The invention relates to a method for recommending a signal timing scheme based on intersection similarity. [0002] technical background [0003] A well-functioning transportation system is closely related to the healthy development of a city. The development of social economy, the acceleration of urbanization process and the rapid increase of private cars have promoted the rapid growth of urban traffic demand, and the ensuing traffic congestion problem has become the bottleneck problem of the development of large and medium-sized cities. In order to solve the above-mentioned traffic problems, the methods generally adopted at home and abroad include widening the road surface, building overpasses, viaducts, etc. Although these methods can temporarily relieve traffic pressure, due to limited land resources and economic constraints, the above methods are not a long-term solution to relieve traffic congestion and improve traffic efficiency. Therefore, in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/08
CPCG08G1/08
Inventor 孟利民骆佳磊蒋维应颂翔林梦嫚
Owner ZHEJIANG UNIV OF TECH
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