Long-range correlation analysis of urban traffic data

This paper investigates urban traffic data by analysing the long-range correlation with detrended fluctuation analysis. Through a large number of real data collected by the travel time detection system in Beijing, the variation of flow in different time periods and intersections is studied. Accordin...

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Bibliographic Details
Published in:Chinese physics B 2010-08, Vol.19 (8), p.55-64
Main Author: 盛鹏 王俊峰 唐铁桥 赵树龙
Format: Article
Language:English
Subjects:
Correlation analysis
Fluctuation
Intersections
Roads
Traffic control
Traffic engineering
Traffic flow
Vehicles
交通数据
城市交通流
实时采集
旅行时间
波动分析
相关性分析
远距离
长程相关性
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Summary:This paper investigates urban traffic data by analysing the long-range correlation with detrended fluctuation analysis. Through a large number of real data collected by the travel time detection system in Beijing, the variation of flow in different time periods and intersections is studied. According to the long-range correlation in different time scales, it mainly discuss the effect of intersection location in road net, people activity customs and special traffic controls on urban traffic flow. As demonstrated by obtained results, the urban traffic flow represents three-phase characters similar to highway traffic. Moreover, compared by the two groups of data obtained before and after the special traffic restrictions （vehicles with special numbered plates only run in a special workday） enforcement, it indicates that the rules not only reduce the flow but also avoid irregular fluctuation.
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/19/8/080205