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Mathematical Problems in Engineering
Volume 2015, Article ID 902191, 7 pages
http://dx.doi.org/10.1155/2015/902191
Research Article

Highway Traffic Flow Nonlinear Character Analysis and Prediction

School of Electronics and Control, Chang’an University, Xi’an, Shaanxi 710064, China

Received 23 June 2014; Revised 12 September 2014; Accepted 18 September 2014

Academic Editor: Shouming Zhong

Copyright © 2015 Meng Hui et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In order to meet the highway guidance demand, this work studies the short-term traffic flow prediction method of highway. The Yu-Wu highway which is the main road in Chongqing, China, traffic flow time series is taken as the study object. It uses phase space reconstruction theory and Lyapunov exponent to analyze the nonlinear character of traffic flow. A new Volterra prediction method based on model order reduction via quadratic-linear systems (QLMOR) is applied to predict the traffic flow. Compared with Taylor-expansion-based methods, these QLMOR-reduced Volterra models retain more information of the system and more accuracy. The simulation results using this new Volterra model to predict short time traffic flow reveal that the accuracy of chaotic traffic flow prediction is enough for highway guidance and could be a new reference for intelligent highway management.