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A study on traffic signal phasing schemes considering crossing pedestrian maneuvers at signalized intersections

Research Project

Project/Area Number 19K15111
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 22050:Civil engineering plan and transportation engineering-related
Research InstitutionNagoya University

Principal Investigator

Xin Zhang  名古屋大学, 環境学研究科, 特任助教 (60825115)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords信号現示 / 歩行者挙動 / 横断歩道 / 交通容量 / 歩車分離 / 安全性 / 交錯 / 信号交差点 / 自動運転 / 幾何構造 / 歩行者 / 信号制御
Outline of Research at the Start

信号交差点における横断歩行者と左折車との交錯を抑制するための対策として、両者を時間的に完全分離する信号制御方式や歩行者信号現示の冒頭か末尾の一部時間のみ分離する方式などが挙げられる。安全性と円滑性の観点から、各信号制御方式の位置付けや適用可能な範囲などは十分明らかになっていない。本研究では横断歩行者の流動状況を再現し、歩車間の交錯機会の変化を歩行者青時間の進行に伴って定量的に評価する方法を開発する。この評価手法を基に、特徴的な信号制御方式の歩行者および車両遅れ時間、交通容量や、歩行者の安全性などの交差点性能に関する比較分析を行い、歩車分離方式との境界条件や、歩行者信号現示長などを明らかにする。

Outline of Final Research Achievements

This study proposed an estimation method of pedestrian presence probability by empirical observation of different signalized crosswalks that can appropriately reflect the Japanese situations considering the bi-directional crossing pedestrians, signal phasing scheme and crosswalk geometry. Based on this method, a safety index of pedestrian exposure time and left-turn lane capacity estimation method were developed for quantitatively evaluating pedestrian safety and the efficiency of left-turn lanes. The results of this study can be applied for planning and operational stage analysis of signalized crosswalks and the selection of traffic signal phasing schemes regarding the treatment of pedestrian and left-turn vehicle volumes and crosswalk geometry.

Academic Significance and Societal Importance of the Research Achievements

本研究では、二方向の歩行者の横断歩道上における一連の流動状況をマクロに表現可能な歩行者存在確率モデルを構築する点やその確率モデルに応じた車両交通容量を推定する点は、学術上極めて独創的である。この研究により、歩行者の安全性確保と自動車の円滑性確保の両方の観点から、導入する交差点の特性に応じて、信号現示やタイミングを検討することが可能となった。今後交通状況に応じて交差点の信号設計や改良に反映することに際して、科学的な根拠を与えるものとして期待できるため、本研究課題は実務的、社会的にも大きな意義があるものである。

Report

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

    (10 results)

All 2022 2021 2020

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (6 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Analysis of left-turn lane capacity under autonomous vehicle mixed flow considering the influence of pedestrian volume and crosswalk length2022

    • Author(s)
      Zhang Xin、Wang Yifei、Nakamura Hideki、Liu Kaixin
    • Journal Title

      Asian Transport Studies

      Volume: 8 Pages: 100070-100070

    • DOI

      10.1016/j.eastsj.2022.100070

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ESTIMATION OF EXPECTED PEDESTRIAN PRESENCE-TIME AT THE CONFLICT-AREA OF SIGNALIZED CROSSWALKS2021

    • Author(s)
      EMAGNU Yonas M.、ZHANG Xin、IRYO-ASANO Miho、NAKAMURA Hideki
    • Journal Title

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

      Volume: 76 Issue: 5 Pages: I_1485-I_1495

    • DOI

      10.2208/jscejipm.76.5_I_1485

    • NAID

      130008027946

    • ISSN
      2185-6540
    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] ESTIMATION METHOD OF LEFT TURN LANE CAPACITY UNDER THE INFLUENCE OF PEDESTRIANS AND CROSSWALK LAYOUT AT SIGNALIZED CROSSWALKS2021

    • Author(s)
      EMAGNU Yonas M.、ZHANG Xin、IRYO-ASANO Miho、NAKAMURA Hideki
    • Journal Title

      Journal of Civil Engineering

      Volume: 36 Issue: 1 Pages: 32-32

    • DOI

      10.12962/j20861206.v36i1.9100

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Efficiency and Safety Evaluation of Left-turn Vehicles and Crossing Pedestrians in Signalized Intersections under the Autonomous Vehicle Mixed Flow Condition2021

    • Author(s)
      Pan Ang、Zhang Xin、Iryo-Asano Miho、Nakamura Hideki
    • Journal Title

      International Journal of Intelligent Transportation Systems Research

      Volume: 20 Issue: 1 Pages: 103-116

    • DOI

      10.1007/s13177-021-00276-z

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Estimation of Waiting Pedestrian Occupancy-time at Signalized Crosswalks for Turning Vehicle Maneuver Analysis2021

    • Author(s)
      EMAGNU, M. Yonas
    • Organizer
      100th Annual Meeting of Transportation Research Board
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Impact of Pedestrians on the Left-turn Lane Capacity of Signalized Intersections under Autonomous Vehicle Mixed Flows2021

    • Author(s)
      WANG Yifei
    • Organizer
      Proceeding of Infrastructure Planning
    • Related Report
      2021 Annual Research Report
  • [Presentation] An Analysis of the Left-turn Lane Capacity under Autonomous Vehicle Mixed Flow Considering the Influence of Pedestrian Volume and Crosswalk Length2021

    • Author(s)
      WANG Yifei
    • Organizer
      Proceedings for the 14th EASTS Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Analysis on Compliance Rate with the Yielding Rule to Pedestrians by Left-turning Vehicles at Signalized Intersections2021

    • Author(s)
      WANG Yifei
    • Organizer
      Proceeding of Infrastructure Planning
    • Related Report
      2021 Annual Research Report
  • [Presentation] Estimation of Waiting Pedestrian Occupancy-time at Signalized Crosswalks for Turning Vehicle Maneuver Analysis2021

    • Author(s)
      EMAGNU Yonas M.
    • Organizer
      100th Annual Meeting of Transportation Research Board
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] A Study on Expected Blockage Time of Left Turning Vehicles under the Influence of Pedestrians at Signalized Intersections2020

    • Author(s)
      EMAGNU Yonas M.
    • Organizer
      Proceedings of Infrastructure Planning and Management
    • Related Report
      2020 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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