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Devloping assessment system of integrated flood risk management by integrating hydarulic engineering and urban planning approaches

Research Project

Project/Area Number 21K18747
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 22:Civil engineering and related fields
Research InstitutionKyoto University

Principal Investigator

Tanaka Tomohiro  京都大学, 工学研究科, 助教 (20793798)

Co-Investigator(Kenkyū-buntansha) 市川 温  京都大学, 経営管理研究部, 教授 (30293963)
横松 宗太  京都大学, 防災研究所, 准教授 (60335502)
Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2021: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords流域治水 / 立地適正化 / 立地選択 / マルチエージェントモデル / 洪水リスク / 立地選択モデル / 交通利便性 / コンパクトシティ / 立地適正化計画 / アメニティ / 公共交通 / 住宅価格 / エージェントベースモデル / 気候変動 / 立地誘導 / 水災保険
Outline of Research at the Start

洪水災害のリスクを河川整備のみで対応することは非現実的であり,都市政策を組み合わせた総合的治水対策の重要性が長年叫ばれてきた.しかしながら,土木工学における研究分野は細分化しており,水工学分野での河川整備の評価と都市計画学分野での政策分析は独立している.本研究は,河川工学と都市計画学の学際融合により,洪水発生と立地選択の両方を表す新たなエージェントベースモデルを開発する.淀川流域中流部の京都市とその周辺域を対象に,開発した洪水発生・立地選択モデルを適用して河川・都市・気候が変化する中で壊滅的な損失を避ける河川・都市シナリオパスを分析する.

Outline of Final Research Achievements

We developed a model of flood occurrence and site selection that can evaluate river and urban planning measures based on an agent model for the purpose of comprehensive flood control measures. In order to evaluate the impact of location guidance measures on residents' location selection behavior during normal times, we proposed an amenity index based on the public transportation amenity, and constructed an agent model to simulate residents' migration behavior over time, taking into account the impact of differences in attractiveness of each town on their location selection behavior. Multiple location inducement scenario analyses were conducted, taking into account the spatial distribution of flood risk based on flood inundation simulations, indicating that developing low flood risk and low transportation accessibility areas is effective in reducing long-term flood risk for residents, including those in low-income areas.

Academic Significance and Societal Importance of the Research Achievements

本研究成果は,水工学と都市計画学の融合によって気候・河川・社会の長期的な変化を陽的に考慮して洪水リスクの時間変化を推定する枠組みを初めて構築することに成功した.特に,社会や人口分布が固定であることを前提とした従来の治水事業評価手法の枠組みを脱却し,水工学分野で経済モデルを用いた洪水リスク評価という新しい潮流を生む可能性がある.さらに,国土交通省が社会資本整備審議会の答申「気候変動を踏まえた水災害対策のあり方」で掲げる「総合的治水対策」を定量的に評価できる可能性がある点で大きな社会的波及効果が期待できる.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (6 results)

All 2023 2022 Other

All Int'l Joint Research (1 results) Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (4 results) (of which Int'l Joint Research: 2 results)

  • [Int'l Joint Research] 国際応用システム分析研究所(オーストリア)

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Novel framework for assessing long‐term flood risk management pathways focusing on river channel improvement and amenity policies2022

    • Author(s)
      Tanaka T., Yokomatsu M., Ashino M., Ichikawa Y.
    • Journal Title

      Journal of Flood Risk Management

      Volume: 1 Issue: 3

    • DOI

      10.1111/jfr3.12804

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Agent-based modelling for impact assessment of urban planning measures on flood risk reduction: A case study in Kyoto2023

    • Author(s)
      Tomohiro Tanaka, Asuka Koga, Muneta Yokomatsu, Yasuto Tachikawa
    • Organizer
      The 28th IUGG General Assembly
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Impact of Urban Planning on Future Flood Risk: Agent-Based Approach to Real Estate Economics2022

    • Author(s)
      Asuka Koga, Tomohiro Tanaka, Muneta Yokomatsu, Yutaka Ichikawa, Yasuto Tachikawa and Kazuaki Yorozu
    • Organizer
      AGU 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 京都盆地における流域治水に向けた立地誘導施策評価のための立地選択モデルの高度化 IV-872022

    • Author(s)
      田中 智大、古閑 あすか、横松 宗太、市川 温
    • Organizer
      令和4年度土木学会全国大会第77回年次学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] 京都盆地における交通利便性を考慮した立地選択モデルの高度化2022

    • Author(s)
      古閑 あすか,田中 智大,横松 宗太,市川 温,立川 康人,萬 和明
    • Organizer
      水文・水資源学会/日本水文科学会2022年度研究発表会
    • Related Report
      2022 Research-status Report

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Published: 2021-07-13   Modified: 2025-01-30  

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