A short-term forecast method for highway traffic conditions based on CHMM

Jiadong Liang, Jianqun Wang, Jingxuan Chen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Short-term traffic flow forecasting has been the most important application of the intelligent transportation system (ITS). This paper presents a model structure with a coupled hidden Markov model (CHMM) for short-term traffic prediction in the highway system with real-time traffic flows data. Data used in this study was gathered from simulation software. The model defines traffic states in a two-dimensional space with speed and volume observations. The decoding function of CHMM is used in this study to estimate the most likely sequence of traffic states. The forecasting model is accessed by predicting errors. The CHMM is compared to autoregressive moving average (ARIMA), which is one of the most widely used regression techniques. These results present that the CHMM outperforms the regression model. Consequently, the paper concludes that CHMM is more robust and successful in modelling unstable traffic conditions.

Original languageEnglish
Title of host publicationCICTP 2017
Subtitle of host publicationTransportation Reform and Change - Equity, Inclusiveness, Sharing, and Innovation - Proceedings of the 17th COTA International Conference of Transportation Professionals
EditorsHaizhong Wang, Jian Sun, Jian Lu, Lei Zhang, Yu Zhang, ShouEn Fang
PublisherAmerican Society of Civil Engineers (ASCE)
Pages633-644
Number of pages12
ISBN (Electronic)9780784480915
DOIs
Publication statusPublished - 2018
Event17th COTA International Conference of Transportation Professionals: Transportation Reform and Change - Equity, Inclusiveness, Sharing, and Innovation, CICTP 2017 - Shanghai, China
Duration: 7 Jul 20179 Jul 2017

Publication series

NameCICTP 2017: Transportation Reform and Change - Equity, Inclusiveness, Sharing, and Innovation - Proceedings of the 17th COTA International Conference of Transportation Professionals
Volume2018-January

Conference

Conference17th COTA International Conference of Transportation Professionals: Transportation Reform and Change - Equity, Inclusiveness, Sharing, and Innovation, CICTP 2017
Country/TerritoryChina
CityShanghai
Period7/07/179/07/17

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