Urban express way real-time traffic index calculation method based on crossroad data

Abstract

The invention belongs to the field of data mining and traffic state classification and particularly relates to an urban express way real-time traffic index calculation method based on crossroad data.The method comprises the following steps: 1, acquiring express way crossroad data; 2, preprocessing the express way crossroad data; 3, extracting vehicle traffic records at the crossroad; 4, calculating the single vehicle travel speed of the road section; 5, calculating the average speed of road section intervals; 6, performing short-term prediction on the average speed among the intervals; 7, calculating a real-time traffic index of the express way; 8, dividing congestion levels according to the real-time traffic index of the express way. The method disclosed by the invention has the advantages of excellent real-time property, high applicability and high accuracy, the real-time traffic index of the express way is calculated by utilizing the crossroad data, and the current traffic operation state is conveniently, scientifically and efficiently determined by a traveler and a traffic management department.

Description

technical field [0001] The invention belongs to the field of data mining technology and traffic state discrimination, in particular to a method for calculating real-time traffic index of urban expressways based on checkpoint data. Background technique [0002] In recent years, my country's urban expressway traffic demand has grown rapidly. At the same time, the pace of urban road construction has been relatively slow, resulting in frequent traffic congestion on some road sections and a significant drop in vehicle transportation efficiency, which has brought inconvenience and impact to people's daily travel. In order to facilitate traffic managers to fully grasp the traffic operation status, reasonably guide the public to travel, relieve the traffic pressure on urban expressways, and carry out real-time evaluation of traffic operation status on urban expressways, it is particularly important to construct and release a scientific and objective expressway traffic index. . [0...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an urban expressway traffic index calculation method based on checkpoint data with strong real-time performance, good flexibility and easy understanding, which overcomes the problems of weak real-time performance, poor applicability and difficulty in understanding existing traffic indexes. insufficient

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