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Highway traffic state determination method and system

A traffic state and expressway technology, applied in the traffic control system of road vehicles, traffic control system, traffic flow detection, etc., can solve the problems of low reliability, complicated related methods, difficult to apply, etc.

Inactive Publication Date: 2017-05-10
JILIN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] To sum up, the current measurement standards for expressway traffic state discrimination are not uniform, the reliability of expressway traffic state discrimination methods is low, and the related methods are too complicated to be applied in practice.

Method used

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  • Highway traffic state determination method and system
  • Highway traffic state determination method and system
  • Highway traffic state determination method and system

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Experimental program
Comparison scheme
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Embodiment 1

[0060] figure 1 It is a flow chart of the expressway traffic state discrimination method in the embodiment of the present invention, as figure 1 As shown, the expressway traffic state discrimination method provided by the present invention specifically includes:

[0061] Step 101, obtaining the historical parameter data of the traffic flow operation state of the expressway;

[0062] Step 102, according to the historical parameter data and the preset classification quantity, adopt the fuzzy clustering algorithm to establish the traffic flow parameter fuzzy clustering center model;

[0063] Step 103, according to the fuzzy clustering center model of the traffic flow parameters, determine the traffic state clustering centers with a preset number of classifications;

[0064] Step 104, obtaining the real-time parameter data of the traffic flow running state of the expressway;

[0065] Step 105, according to the real-time parameter data and the traffic state cluster center, use t...

Embodiment 2

[0068] Embodiment 2: Based on the above-mentioned embodiment, this embodiment specifically sets the number of classifications. This embodiment is completed in the traffic information control center, and two parts are constructed through the model construction of the traffic flow parameter fuzzy clustering center and the traffic state discrimination decision-making model. It can be embedded in the traffic control system software to realize the acquisition of expressway traffic status metrics. The specific steps are as follows:

[0069] S1: Obtain the historical parameter data of the traffic flow operation state of the expressway;

[0070] S2: According to historical parameter data and preset four classifications, a fuzzy clustering center model of traffic flow parameters is established by using fuzzy clustering algorithm;

[0071] Among them, using the fuzzy clustering algorithm to establish the traffic flow parameter fuzzy clustering center model refers to the establishment of...

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Abstract

The present invention discloses a highway traffic state determination method and system. The method comprises: employing a fuzzy clustering algorithm to establish a traffic flow parameter fuzzy clustering center model according to the historical parameter data of the highway operation state and the number of preset classifications; according to the central model, determining the traffic state clustering center with the number of the preset classifications; according to the real-time parameter data and the clustering center, employing the minimum distance classification method to obtain the traffic state clustering center with the minimum distance real-time parameter data; and according to the clustering center, determining that the traffic state clustering including the real-time parameter data is the traffic state clustering where the traffic state clustering with the minimum distance real-time parameter data is located. The highway traffic state determination method and system improve the reliability of the determination of the highway traffic state through adoption of the highway traffic flow operation state parameter data, improve the link of the traffic state obtaining and provide the best traffic control measure and the travel plan for the road managers and users from the information obtaining link at the greatest extent.

Description

technical field [0001] The invention relates to the field of intelligent traffic control systems, in particular to a method and system for judging traffic states of expressways. Background technique [0002] The acquisition of expressway traffic operation status information is the basis for reasonable management and control of expressway intelligent transportation systems, and is an important module in the research of ITS (Intelligent Transport System, referred to as ITS). Real-time monitoring of expressway traffic status and traffic status The release of information is an important basis for ensuring traffic safety and operating efficiency. According to the real-time traffic status information of road sections, the management and control of expressway traffic flow can be realized, the occurrence of congestion can be reduced, and the characteristics of expressway safety, speed and efficiency can be fully utilized. [0003] The effectiveness of traffic discrimination on the ...

Claims

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Application Information

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IPC IPC(8): G08G1/01
CPCG08G1/0129G08G1/0133
Inventor 于德新林赐云张伟邢茹茹龚勃文杨庆芳周户星郑黎黎王树兴马晓刚瞿卫东赵小辉张帆
Owner JILIN UNIV