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Development of Traffic Flow Theory and Control Method for Sag and Tunnel Bottlenecks on Expressways

Research Project

Project/Area Number 19K04637
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 22050:Civil engineering plan and transportation engineering-related
Research InstitutionUniversity of Tsukuba

Principal Investigator

Wada Kentaro  筑波大学, システム情報系, 准教授 (20706957)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords交通流理論 / サグ・トンネル / Capacity Drop / プローブ / 感知器 / 交通制御 / 自動運転 / 渋滞発生確率 / 追従モデル / 渋滞発生後捌け交通量 / 渋滞発生時交通量 / 確率的交通容量 / 拡散近似 / 渋滞発生予測 / 環境計算 / ボトルネック / サグ / 渋滞 / 交通流 / 単路部ボトルネック / トンネル
Outline of Research at the Start

本研究は,単路部ボトルネック(サグ・トンネル等)における渋滞現象を説明するために,単純なモデリングが可能なマクロな交通流モデルをベースとした理論を構築し,その理論に基づく制御手法を開発することを目的とする.具体的には,まず,渋滞時に生じる特徴的な現象を時空間的に分類し,安定的な現象から順にモデルを構築・拡張する.そして,近年膨大に蓄積がされつつある車両軌跡データに基づき,理論の検証を行う.最後に,可変速度規制やランプ制御,自動走行(支援)技術等の複数スキームを組み合わせた最適な制御法について検討を行う.

Outline of Final Research Achievements

Various microscopic (car-following) models have been proposed to explain congestion phenomena at sag and tunnel bottlenecks. However, due to the complexity of these models, analyzing them has been challenging, and as a result, a well-established theory has not been developed. This research aims to develop a theory based on a macroscopic traffic flow model that allows for simple modeling and to create a control method based on this theory. Specifically, we first classified the characteristic traffic congestion phenomena in terms of space and time, and then we constructed and extended a model starting from the stable phenomena. Next, the theory was verified using actual observational data. Finally, we derived driving behaviors that alleviate traffic congestion and also evaluated real-world traffic control based on the proposed theory.

Academic Significance and Societal Importance of the Research Achievements

本研究の最大な特色は,ミクロな視点でのモデル化が主流である単路部ボトルネック現象に対して,交通の流れの記述に力点をおくマクロな視点でモデル化を行う点である.これは,従来のアプローチからの大きな方向転換を志向するものであり,民間プローブやETC2.0,高度な画像処理技術による長時間全車両軌跡など,近年膨大に蓄積されつつある高解像度の交通流データと極めて親和性が高い.そのため,これらのデータによる検証を通した信頼性の高い理論の構築が期待できる.さらに,本研究で得られる知見は実務的な課題に直結するものであり,学術研究としてのみならず,工学的,実務的にも大きな意義がある.

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (34 results)

All 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (17 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 14 results,  Open Access: 16 results) Presentation (10 results) (of which Int'l Joint Research: 3 results) Book (1 results) Remarks (4 results)

  • [Int'l Joint Research] リーズ大学(英国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] カリフォルニア大学アーバイン校(米国)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Empirical Analysis of Capacity Drop Phenomenon at Multiple Sag and Tunnel Bottlenecks on Expressway in Japan2023

    • Author(s)
      甲斐 慎一朗, 和田 健太郎, 堀口 良太, Xing Jian
    • Journal Title

      JSTE Journal of Traffic Engineering

      Volume: 9 Issue: 2 Pages: A_280-A_287

    • DOI

      10.14954/jste.9.2_A_280

    • ISSN
      2187-2929
    • Year and Date
      2023-02-01
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Empirical Analysis of Traffic Performance Improvement Mechanisms by Audible Speed Recovery Information Provision2023

    • Author(s)
      和田 健太郎, 金崎 圭吾, 西田 匡志, 平井 章ー
    • Journal Title

      JSTE Journal of Traffic Engineering

      Volume: 9 Issue: 2 Pages: A_326-A_334

    • DOI

      10.14954/jste.9.2_A_326

    • ISSN
      2187-2929
    • Year and Date
      2023-02-01
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Predicting traffic breakdown on expressways using linear combination of vehicle detector data2023

    • Author(s)
      Rikuto Shigemi, Hiroyasu Ando, Kentaro Wada, Risa Mukai
    • Journal Title

      Nonlinear Theory and Its Applications, IEICE

      Volume: 14 Issue: 2 Pages: 416-427

    • DOI

      10.1587/nolta.14.416

    • ISSN
      2185-4106
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 連続体交通流モデルに基づく高速道路サグ・トンネル部における渋滞発生確率の解析2023

    • Author(s)
      金崎 圭吾, 和田 健太郎
    • Journal Title

      土木学会論文集D3(土木計画学)

      Volume: 78

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 追従モデルによる高速道路サグ部のCapacity Drop現象の再現2023

    • Author(s)
      甲斐 慎一朗, 和田 健太郎, 堀口 良太
    • Journal Title

      土木学会論文集D3(土木計画学)

      Volume: 78

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Predicting Traffic Breakdown in Expressways Using Linear Combination of Vehicle Detector Data2022

    • Author(s)
      Rikuto Shigemi, Hiroyasu Ando, Kentaro Wada, Risa Mukai
    • Journal Title

      IEICE Proceeding Series

      Volume: 71 Pages: 21-24

    • DOI

      10.34385/proc.71.A2L-D-01

    • ISSN
      2188-5079
    • Year and Date
      2022-12-12
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] On the Mechanism of Capacity Drop at Freeway Sag and Tunnel Bottlenecks2022

    • Author(s)
      和田 健太郎,Xing Jian,大口 敬
    • Journal Title

      JSTE Journal of Traffic Engineering

      Volume: 8 Issue: 3 Pages: 1-10

    • DOI

      10.14954/jste.8.3_1

    • ISSN
      2187-2929
    • Year and Date
      2022-04-01
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Driving Behaviors for Mitigating Capacity Drop at Freeway Sag and Tunnel Bottlenecks2022

    • Author(s)
      和田 健太郎,甲斐 慎一朗,堀口 良太
    • Journal Title

      JSTE Journal of Traffic Engineering

      Volume: 8 Issue: 2 Pages: A_1-A_8

    • DOI

      10.14954/jste.8.2_A_1

    • NAID

      130008161455

    • ISSN
      2187-2929
    • Year and Date
      2022-02-01
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Empirical Analysis of Traffic Performance Improvement Mechanisms by Audible Speed Recovery Information Provision2022

    • Author(s)
      和田 健太郎, 金﨑 圭吾, 西田 匡志, 平井 章一
    • Journal Title

      Proceedings of the Conference of Japan Society of Traffic Engineers

      Volume: 42 Issue: 0 Pages: 505-512

    • DOI

      10.14954/jsteproceeding.42.0_505

    • ISSN
      2758-3635
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Empirical Analysis of Capacity Drop Phenomenon at Multiple Sag and Tunnel Bottlenecks on Expressway in Japan2022

    • Author(s)
      甲斐 慎一朗, 和田 健太郎, 堀口 良太, Xing Jian
    • Journal Title

      Proceedings of the Conference of Japan Society of Traffic Engineers

      Volume: 42 Issue: 0 Pages: 513-517

    • DOI

      10.14954/jsteproceeding.42.0_513

    • ISSN
      2758-3635
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 連続体交通流理論に基づく高速道路サグ部における渋滞発生現象の解析2021

    • Author(s)
      金﨑圭吾,和田健太郎
    • Journal Title

      土木計画学研究・講演集

      Volume: 63

    • Related Report
      2021 Research-status Report
    • Open Access
  • [Journal Article] 単路部ボトルネックにおけるCapacityDropを低減する走行挙動:連続体交通流理論に基づく一考察2021

    • Author(s)
      和田健太郎,甲斐慎一朗,堀口良太
    • Journal Title

      交通工学研究発表会論文集

      Volume: 41 Pages: 511-517

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] 連続体交通流理論に基づく追従モデルによるCapacityDrop現象の再現2021

    • Author(s)
      甲斐慎一朗,和田健太郎,堀口良太
    • Journal Title

      土木計画学研究・講演集

      Volume: 64

    • Related Report
      2021 Research-status Report
    • Open Access
  • [Journal Article] RECENT ADVANCES IN THEORY OF DYNAMIC TRAFFIC EQUILIBRIUM ASSIGNMENTS2021

    • Author(s)
      和田健太郎
    • Journal Title

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

      Volume: 76 Issue: 5 Pages: I_21-I_39

    • DOI

      10.2208/jscejipm.76.5_I_21

    • NAID

      130008027961

    • ISSN
      2185-6540
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] An empirical analysis of capacity drop at sag bottlenecks based on the continuum traffic flow theory2020

    • Author(s)
      和田健太郎,Xing Jian,大口敬
    • Journal Title

      SEISAN KENKYU

      Volume: 72 Issue: 2 Pages: 165-171

    • DOI

      10.11188/seisankenkyu.72.165

    • NAID

      130007827128

    • ISSN
      0037-105X, 1881-2058
    • Year and Date
      2020-03-01
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Continuum car-following model of capacity drop at sag and tunnel bottlenecks2020

    • Author(s)
      Kentaro Wada, Irene Martinez, Wen-Long Jin
    • Journal Title

      Transportation Research Part C: Emerging Technologies

      Volume: 113 Pages: 260-276

    • DOI

      10.1016/j.trc.2019.05.012

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 高速道路サグ部における渋滞時捌け交通量低下現象の実証分析2019

    • Author(s)
      山田拓弥,和田健太郎,大口敬
    • Journal Title

      土木計画学研究・講演集

      Volume: 60

    • Related Report
      2019 Research-status Report
    • Open Access
  • [Presentation] 音声による速度回復情報提供の交通性能改善メカニズムの実証分析2022

    • Author(s)
      和田 健太郎, 金﨑 圭吾, 西田 匡志, 平井 章一
    • Organizer
      第42回交通工学研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 連続体交通流理論に基づく国内複数のサグ・トンネルにおける交通容量低下の実証分析2022

    • Author(s)
      甲斐 慎一朗, 和田 健太郎, 堀口 良太, Xing Jian
    • Organizer
      第42回交通工学研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Predicting traffic breakdown in expressways using linear combination of vehicle detector data2022

    • Author(s)
      Rikuto Shigemi, Hiroyasu Ando, Kentaro Wada, Risa Mukai
    • Organizer
      The 2022 International Symposium on Nonlinear Theory and Its Applications
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 連続体交通流理論に基づく高速道路サグ部における渋滞発生現象の解析2021

    • Author(s)
      金﨑圭吾,和田健太郎
    • Organizer
      第63回土木計画学研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] 単路部ボトルネックにおけるCapacityDropを低減する走行挙動:連続体交通流理論に基づく一考察2021

    • Author(s)
      和田健太郎,甲斐慎一朗,堀口良太
    • Organizer
      第41回交通工学研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] 連続体交通流理論に基づく追従モデルによるCapacityDrop現象の再現2021

    • Author(s)
      甲斐慎一朗,和田健太郎,堀口良太
    • Organizer
      第64回土木計画学研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] Predicting traffic breakdown in urban expressways based on simplified reservoir computing2021

    • Author(s)
      Taiga Okamoto, Hiroyasu Ando, Kentaro Wada, Risa Mukai, Yoshifumi Nishiumi, Dai Tamagawa
    • Organizer
      AAAI-21 Workshop 3: AI for Urban Mobility
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Continuum car-following model of capacity drop at sag and tunnel bottlenecks2019

    • Author(s)
      Kentaro Wada, Irene Martinez, Wen-Long Jin
    • Organizer
      International Symposium on Transportation and Traffic Theory
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 連続体交通流理論に基づく高速道路サグ部におけるCapacity Drop現象の実証分析2019

    • Author(s)
      和田健太郎,Xing Jian,大口敬
    • Organizer
      第17回ITSシンポジウム
    • Related Report
      2019 Research-status Report
  • [Presentation] 高速道路サグ部における渋滞時捌け交通量低下現象の実証分析2019

    • Author(s)
      山田拓弥,和田健太郎,大口敬
    • Organizer
      第60回土木計画学研究発表会
    • Related Report
      2019 Research-status Report
  • [Book] International Encyclopedia of Transportation, Volume 4, "Bottleneck" (pp.134-142) and "Flow Breakdown" (pp.143-153)2021

    • Author(s)
      Vickerman, R. (Ed.), Kentaro Wada, Toru Seo and Yasuhiro Shiomi
    • Total Pages
      4569
    • Publisher
      Elsevier
    • ISBN
      9780081026717
    • Related Report
      2021 Research-status Report
  • [Remarks] 交通工学研究会 自主研究「高速道路単路部の渋滞現象記述理論の実務への応用」

    • URL

      https://www.sk.tsukuba.ac.jp/~wadaken/JSTE_TFT.html

    • Related Report
      2022 Annual Research Report
  • [Remarks] Kentaro Wada(和田健太郎) Web Page

    • URL

      https://www.sk.tsukuba.ac.jp/~wadaken/

    • Related Report
      2020 Research-status Report 2019 Research-status Report
  • [Remarks] 和田 健太郎 (Kentaro Wada) - マイポータル - researchmap

    • URL

      https://researchmap.jp/wadaken/

    • Related Report
      2020 Research-status Report
  • [Remarks] 和田 健太郎 (Kentaro Wada) - マイポータル - researchmap

    • URL

      https://researchmap.jp/wadaken

    • Related Report
      2019 Research-status Report

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

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