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Expressway charge data track matching based traffic state recognition method

A technology of traffic conditions and highways, applied in the field of intelligent transportation, can solve problems such as increasing the cost of highway construction and maintenance

Inactive Publication Date: 2011-06-01
RES INST OF HIGHWAY MINIST OF TRANSPORT
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  • Abstract
  • Description
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Problems solved by technology

However, such a method requires additional installation of testing equipment, which increases the cost of expressway construction and maintenance.

Method used

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  • Expressway charge data track matching based traffic state recognition method
  • Expressway charge data track matching based traffic state recognition method
  • Expressway charge data track matching based traffic state recognition method

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Embodiment Construction

[0043] Due to the characteristics of highway investment in our country, almost all highways have built toll stations to collect tolls to repay construction funds. Toll booths can collect information on vehicles entering and exiting the expressway, and can record detailed vehicle information (such as vehicle type). This information is generally stored in the database of the expressway management department in the form of data, which can be retrieved and transferred.

[0044] Every time a vehicle enters or leaves the expressway, a piece of toll data will be generated. For a highway network with a certain scale, the amount of data is very large and is not evenly distributed in time and space. Data analysis and data mining, in order to obtain the hidden knowledge in the data. Due to the need for data clearing, the expressway toll collection system usually sets provincial boundary (or administrative regions below the provincial level) toll booths on the geographical boundaries of ...

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Abstract

The invention relates to an expressway charge data track matching based traffic state recognition method, belonging to the field of intelligent transportation. Real road network charge data provided by an expressway management system is fully utilized to fully excavate the connotation of the charge data, then the charge data is processed, matched, analyzed and calculated to obtain the inter-site travel time and traffic flow of the whole road network, then a fuzzy clustering method is utilized to recognize the traffic state between any sites on the road network, and the method comprises the following four concrete steps: handling data exception; calculating the average travel time; calculating link traffic flow; and recognizing the traffic state based on fuzzy clustering. By utilizing the method, accurate traffic condition information can be provided for a manager, thus the manager can timely and accurately know the traffic state, and a reliable data basis is provided for developing anexpressway information service.

Description

technical field [0001] The invention belongs to the field of intelligent transportation, and relates to a traffic state identification method of an expressway road network. Background technique [0002] With the rapid construction of expressways in our country, more and more provinces and cities have formed a network of expressways. The toll data information based on the expressway road network can reflect the traffic status information of the expressway section that the vehicle travels from one side. In previous studies, the expressway toll information is mainly used to calculate the OD matrix of each toll station. At present, domestic and foreign studies on network toll data mainly focus on the development of information service systems, travel time prediction and analysis, and traffic forecasting limited to closed expressway sections. Few people have been involved in the calculation of traffic on road sections in the road network, and The information that the charging d...

Claims

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Application Information

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IPC IPC(8): G08G1/01G08G1/065
Inventor 刘浩袁媛张可牛树云张海林贺瑞华桑丽张剑飞
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
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