Presentation 2020-01-31
[Poster Presentation] Preliminary study on time series forecasting of road traffic at multiple locations for applying to traffic congestion mitigation with adaptive vehicle speed control
Satoshi Watanabe, Ryusei Aiura, Hiroaki Morino,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We previously proposed a method to solve a traffic jam early by carrying out an appropriate speed control of a vehicle running behind congested vehicle platoon at a place where natural traffic congestion is likely to occur, such as the highway sag. In this method, it is important to detect the occurrence of congested vehicle platoon as early as possible by some means. In this paper, we report a basic study on a method to predict the congestion time at a location in real time by time series forecasting using velocity data collected at two locations including the target location and its downstream one. Here, we assume distance between two locations is relatively small (Approximately 1 km). As a prediction technique to deal with multiple time series data, we focus on VAR (Vector Auto-regression model) which is one of the autoregressive models and multivariate LSTM (Long Short Time Memory). Evaluation results using velocity data obtained by traffic flow simulation with actual highway vehicle data show that both methods achieve the same level of prediction accuracy, and that the prediction accuracy is improved in comparison with the case of predicting only from one time series data (In this case, the past time series data of the point to be predicted) using AR model and univariate LSTM.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Sag sections / Time series prediction / Machine Learning / VAR / LSTM
Paper # SeMI2019-107
Date of Issue 2020-01-23 (SeMI)

Conference Information
Committee SeMI
Conference Date 2020/1/30(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Susumu Ishihara(Shizuoka Univ.)
Vice Chair Kazuya Monden(Hitachi) / Koji Yamamoto(Kyoto Univ.)
Secretary Kazuya Monden(Kyoto Univ.) / Koji Yamamoto(NTT DOCOMO)
Assistant Akira Uchiyama(Osaka Univ.) / Kenji Kanai(Waseda Univ.) / Masafumi Hashimoto(Osaka Univ.)

Paper Information
Registration To Technical Committee on Sensor Network and Mobile Intelligence
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Poster Presentation] Preliminary study on time series forecasting of road traffic at multiple locations for applying to traffic congestion mitigation with adaptive vehicle speed control
Sub Title (in English)
Keyword(1) Sag sections
Keyword(2) Time series prediction
Keyword(3) Machine Learning
Keyword(4) VAR
Keyword(5) LSTM
1st Author's Name Satoshi Watanabe
1st Author's Affiliation Shibaura Institute of Technology(SIT)
2nd Author's Name Ryusei Aiura
2nd Author's Affiliation Shibaura Institute of Technology(SIT)
3rd Author's Name Hiroaki Morino
3rd Author's Affiliation Shibaura Institute of Technology(SIT)
Date 2020-01-31
Paper # SeMI2019-107
Volume (vol) vol.119
Number (no) SeMI-406
Page pp.pp.43-44(SeMI),
#Pages 2
Date of Issue 2020-01-23 (SeMI)