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Optimization of freeway traffic flow with exogenous control of autonomous vehicles

Research Project

Project/Area Number 19H02268
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 22050:Civil engineering plan and transportation engineering-related
Research InstitutionRitsumeikan University

Principal Investigator

Shiomi Yasuhiro  立命館大学, 理工学部, 教授 (40422993)

Co-Investigator(Kenkyū-buntansha) 柳原 正実  東京都立大学, 都市環境科学研究科, 助教 (20739560)
服部 宏充  立命館大学, 情報理工学部, 教授 (50455581)
吉井 稔雄  愛媛大学, 理工学研究科(工学系), 教授 (90262120)
瀬尾 亨  東京工業大学, 環境・社会理工学院, 准教授 (90774779)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2019: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Keywords交通渋滞 / 高速道路 / 介入制御 / 自動運転 / データ駆動型モデル / 交通状態推定 / 交通流シミュレーション / 車線変更 / 車両走行軌跡データ / 動的交通流マネジメント / 追従モデル / 強化学習 / ミクロ交通流シミュレーション / 深層学習 / 交通流 / 動的交通マネジメント / 交通管制 / コネクティッド車両 / 自動走行車両 / シミュレーション / データ同化 / ミクロ運転挙動 / ゲームAI
Outline of Research at the Start

高速道路では現状で20%弱の車両が自動走行機能(ACC)を利用して走行しており,今後の自動運転車の普及に伴い,その割合は急増していくことが予想されており,交通事故の削減などが期待されている.しかしながら,自動運転車の普及は必ずしも渋滞を改善する訳ではなく,むしろ手動走行の車両より安全側に設計されることで渋滞の程度が悪化すると予想している研究成果も少なくない.本研究では,自動運転車が普及することで,高速道路での渋滞が解消されるような自動運転車の動かし方を提案することを目標とする.

Outline of Final Research Achievements

In this research, we developed three key components for traffic management on freeways: (1) data-driven traffic flow models, (2) a microscopic-level data assimilation system for traffic state estimation, and (3) an advanced active traffic management system.
Regarding (1), we analyzed the behaviors of individual vehicles and traffic dynamics using comprehensive vehicle trajectory data. Based on this analysis, we developed a data-driven car-following model, which demonstrated a higher accuracy in reproducing vehicle behavior compared to conventional models. For (2), we constructed a data assimilation system that integrates micro traffic flow simulation with fixed-point and/or probe vehicle observations. As for (3), we proposed operating algorithms for the pace-maker light systems and dynamic lane-guidance system. Through simulation analysis, we confirmed the positive impact of these systems on smoothing traffic flow.

Academic Significance and Societal Importance of the Research Achievements

高速道路での交通渋滞は経済損失だけではなく,事故のリスクも増大させるため,現在の道路インフラを有効に活用した上で,その解消を目指すことが必要です.また,今後の自動運転車両の普及を想定すると,それらを活かした新しいマネジメント手法が可能となります.本研究では,交通シミュレーション上での試論ではありますが,その有効性を定量的に示した点,および,それを社会実装するに当たって必要となる諸技術を開発した点に社会的意義があります.学術的には,全車両走行軌跡データなどのオープン化が進む中で,そのデータ分析手法を提案するとともに,データ駆動型の新しいモデル化手法を提示した点に大きな意義があります.

Report

(4 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (33 results)

All 2022 2021 2020 2019

All Journal Article (13 results) (of which Peer Reviewed: 12 results,  Open Access: 4 results) Presentation (19 results) (of which Int'l Joint Research: 3 results) Book (1 results)

  • [Journal Article] On the relationship between lane flow ratio and travel time on the merging section of an urban freeway2022

    • Author(s)
      服部 友哉、塩見 康博
    • Journal Title

      JSTE Journal of Traffic Engineering

      Volume: 8 Issue: 2 Pages: A_159-A_168

    • DOI

      10.14954/jste.8.2_A_159

    • NAID

      130008161391

    • ISSN
      2187-2929
    • Year and Date
      2022-02-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Method for Detecting the Appearance of Macroscopic Congested State based on the Area Traffic State2022

    • Author(s)
      髙田 啓介、森本 裕治、吉井 稔雄、坪田 隆宏
    • Journal Title

      Proceedings of the Conference of Japan Society of Traffic Engineers

      Volume: 42 Issue: 0 Pages: 519-522

    • DOI

      10.14954/jsteproceeding.42.0_519

    • ISSN
      2758-3635
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] EFFECT OF TRAFFIC ACCIDENT INFORMATION PROVISION ON EXPRESSWAY NETWORK CONSIDERING INFORMATION TYPES2022

    • Author(s)
      TSUBOTA Takahiro、YOSHII Toshio、KURAUCHI Shinya、XING Jian
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. D3 (Infrastructure Planning and Management)

      Volume: 77 Issue: 5 Pages: I_985-I_993

    • DOI

      10.2208/jscejipm.77.5_I_985

    • ISSN
      2185-6540
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamic Speed Management on Motorways2021

    • Author(s)
      塩見 康博
    • Journal Title

      IATSS Review

      Volume: 45 Issue: 3 Pages: 172-181

    • DOI

      10.24572/iatssreview.45.3_172

    • NAID

      130007994291

    • ISSN
      0386-1104, 2433-4537
    • Year and Date
      2021-02-28
    • Related Report
      2020 Annual Research Report
  • [Journal Article] Analysis of the impact of traffic accidents on the MFD shape2021

    • Author(s)
      吉井 稔雄、奥原 瑠依、坪田 隆宏
    • Journal Title

      JSTE Journal of Traffic Engineering

      Volume: 7 Issue: 2 Pages: A_201-A_206

    • DOI

      10.14954/jste.7.2_A_201

    • NAID

      130007989145

    • ISSN
      2187-2929
    • Year and Date
      2021-02-01
    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] PREDICTION OF TRAFFIC ACCIDENT LIKELIHOOD ON INTERCITY EXPRESSWAY BY CONVOLUTIONAL NEURAL NETWORK2020

    • Author(s)
      Takahiro TSUBOTA, Toshio YOSHII, Jian XING
    • Journal Title

      Intelligence, Informatics and Infrastructure

      Volume: 1 Issue: 1 Pages: 11-17

    • DOI

      10.11532/jsceiii.1.1_11

    • NAID

      130007940725

    • ISSN
      2435-9262
    • Year and Date
      2020-11-11
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of Accident Risk Information Provision to Traffic Accident Reduction2020

    • Author(s)
      坪田 隆宏、吉井 稔雄、白柳 洋俊、倉内 慎也
    • Journal Title

      JSTE Journal of Traffic Engineering

      Volume: 6 Issue: 2 Pages: A_270-A_279

    • DOI

      10.14954/jste.6.2_A_270

    • NAID

      130007795549

    • ISSN
      2187-2929
    • Year and Date
      2020-02-01
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Temporary variation of traffic flow characteristics on expressways using individual vehicle data2020

    • Author(s)
      松ヶ谷 玲弥, 塩見 康博, シン ジャン, 糸島 史浩, 甲斐 穂高
    • Journal Title

      JSTE Journal of Traffic Engineering

      Volume: 6 Issue: 2 Pages: A_121-A_130

    • DOI

      10.14954/jste.6.2_A_121

    • NAID

      130007795522

    • ISSN
      2187-2929
    • Year and Date
      2020-02-01
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Intuitive Representation of Traffic Flow Dynamics: Application of Data Sonification2020

    • Author(s)
      Shiomi Yasuhiro、Sakai Shiho、Terasawa Hiroko
    • Journal Title

      2020 Forum on Integrated and Sustainable Transportation Systems (FISTS)

      Volume: - Pages: 184-191

    • DOI

      10.1109/fists46898.2020.9264851

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Calibration-free traffic state estimation method using single detector and connected vehicles with Kalman filtering and RTS smoothing2020

    • Author(s)
      Seo Toru
    • Journal Title

      2020 IEEE 23rd International Conference on Intelligent Transportation Systems (ITSC)

      Volume: - Pages: 1-5

    • DOI

      10.1109/itsc45102.2020.9294229

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] STUDY ON THE INFLUENCE OF PACE-MAKER-LIGHT ON CAR-FOLLOWING BEHAVIORS CONSIDERING RELATIVE SPEED VARIATIONS2020

    • Author(s)
      田平優太,塩見康博
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. D3 (Infrastructure Planning and Management)

      Volume: 75 Issue: 6 Pages: I_637-I_646

    • DOI

      10.2208/jscejipm.75.6_I_637

    • NAID

      130007829542

    • ISSN
      2185-6540
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A PAVEMENT DETERIORATION FORECASTING MODEL IN EXPRESSWAYS USING DEEP LEARNING2020

    • Author(s)
      橋本申, 吉井稔雄, 坪田隆宏, 全邦釘
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. D3 (Infrastructure Planning and Management)

      Volume: 75 Issue: 6 Pages: I_547-I_554

    • DOI

      10.2208/jscejipm.75.6_I_547

    • NAID

      130007829530

    • ISSN
      2185-6540
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dynamic calibration of microscopic traffic simulation at sags2019

    • Author(s)
      Mariko Nakai and Yasuhiro Shiomi
    • Journal Title

      Proceedings of the 24th HKSTS international conference

      Volume: -

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] Data-driven modeling of car-following behavior on freeways considering spatio-time effects: a comparison of different neural network structures2022

    • Author(s)
      Masahiro Kinoshita and Yasuhiro Shiomi
    • Organizer
      第20回ITSシンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] 強化学習を用いた高速道路における制限速度制御手法の構築2022

    • Author(s)
      藤本想,花房比佐友,塩見康博
    • Organizer
      第66回土木計画学研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高速道路合流部における自動運転車両の戦略的制御2022

    • Author(s)
      篠原祐吾,花房比佐友,塩見康博
    • Organizer
      第66回土木計画学研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Evaluation of large-scale complete vehicle trajectories dataset on two kilometers highway segment for one hour duration: Zen Traffic Data2021

    • Author(s)
      Seo, T., Tago, Y., Shinkai, N., Nakanishi, M., Tanabe, J., Ushirogochi, D., Kanamori, S., Abe, A., Kodama, T., Yoshimura, S., Ishihara, M., and Nakanishi, W.
    • Organizer
      2021 International Symposium on Transportation Data and Modelling
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] モデルフリー・経験則フリーな交通状態推定2021

    • Author(s)
      瀬尾亨
    • Organizer
      第64回土木計画学研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Link Transmission Modelと移動体観測を組み合わせた交通状態推定手法の開発と検証2021

    • Author(s)
      文山草, 瀬尾亨, 布施孝志
    • Organizer
      第64回土木計画学研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ミクロ交通流シミュレーションを用いた都市高速における動的車線マネジメントに関する研究2021

    • Author(s)
      服部友哉, 塩見康博, 佐野正彦, 松永弘明
    • Organizer
      第19回ITSシンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] 都市高速における追従応答性を考慮した車両制御技術の適用可能性に関する研究2021

    • Author(s)
      佐野正彦, 松永弘明, 入江喜朗, 高本聡, 橋本洋介, 塩見康博
    • Organizer
      第64回土木計画学研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ミクロ交通流シミュレータを用いたデータ同化による高速道路サグ部の交通状態推定2020

    • Author(s)
      中井万里子,塩見康博
    • Organizer
      第62回土木計画学研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 車両挙動モデリングにおけるHamiltonian Neural Networkの適用可能性2020

    • Author(s)
      塩見康博
    • Organizer
      第61回土木計画学研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] プローブカーと感知器のデータに基づくキャリブレーション不要な交通状態推定手法2020

    • Author(s)
      瀬尾亨, 杉本佳昭
    • Organizer
      第62回土木計画学研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 自動運転車両の車間距離データに基づく混合交通流の車線別状態推定2020

    • Author(s)
      酒井健吾, 瀬尾亨, 布施孝志
    • Organizer
      第62回土木計画学研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ミクロ交通流シミュレータを用いたデータ同化による高速道路サグ部の交通状態推定2019

    • Author(s)
      中井万里子,塩見康博
    • Organizer
      第60回土木計画学研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 追従時の相対速度変動に着目した走光型視線誘導システムの影響分析2019

    • Author(s)
      田平優太,塩見康博
    • Organizer
      第59回土木計画学研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] プローブカー軌跡とショックウェーブ理論を用いた自由流領域の交通密度推定2019

    • Author(s)
      安田昌平, 瀬尾亨, 井料隆雅
    • Organizer
      第60回土木計画学研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 大規模車両軌跡データ解析のための基礎的ライブラリの開発2019

    • Author(s)
      眞貝憲史, 田子裕亮, 瀬尾亨, 中西航
    • Organizer
      第60回土木計画学研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 自動運転時代の交通システム理論:展望と課題2019

    • Author(s)
      瀬尾亨
    • Organizer
      G空間EXPO(CSISシンポジウム)
    • Related Report
      2019 Annual Research Report
  • [Presentation] A Study on the Characteristics of MFD determined by Probe Data2019

    • Author(s)
      StephanieWanjiku GITURU, Toshio YOSHII, Takahiro TSUBOTA, Hirotoshi SHIRAYANAGI
    • Organizer
      The 13th International Conference of Eastern Asia Society for Transportation Studies, Colombo, Sri Lanka
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of Attentional Disengagement on Driver Inattention While Driving on Expressway2019

    • Author(s)
      Hirotoshi SHIRAYANAGI, Shinya KURAUCHI, Takahiro TSUBOTA and Toshio YOSHII
    • Organizer
      The 13th International Conference of Eastern Asia Society for Transportation Studies, Colombo, Sri Lanka
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Book] International Encyclopedia of Transportation2021

    • Author(s)
      Wada, K., Seo, T., and Shiomi, Y
    • Total Pages
      4226
    • Publisher
      Elsevier
    • Related Report
      2021 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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