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The Estimation of Navigation Hazard Zones to Reduce Ship Collision Accidents Caused by Human Factors

Research Project

Project/Area Number 18K13960
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 25020:Safety engineering-related
Research InstitutionTokyo University of Marine Science and Technology (2019-2023)
Tokai University (2018)

Principal Investigator

Fukuda Gen  東京海洋大学, 学術研究院, 准教授 (10734478)

Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords衝突ゾーンの見える化 / OZT / OZT密度 / ビッグデータ / AIS / 海上交通分析 / 衝突ゾーン / バーチャルブイ / LOPC / LOPC密度 / 相関 / 航行妨害ゾーン / 衝突
Outline of Final Research Achievements

In this study, it was found that the OZT density near areas where past ship collisions occurred is not the highest but rather around a certain value. This indicates that in regions with high OZT density, navigators are more cautious, resulting in fewer collisions. Conversely, in areas where OZT zones are present but not as highly dense, navigators may be less attentive, leading to more collisions. Additionally, after the installation of a virtual AIS buoy south of the Uraga Channel in 2019, we identified new hazardous areas in the altered traffic flow using OZT density.

Academic Significance and Societal Importance of the Research Achievements

過去に船舶の衝突が発生した付近はOZT密度が最も高い値ではなく、ある一定値付近にあることを明らかにし、OZTは発生しているが、そこまで高い値が出ていない場所では、航海士が不注意となり衝突が発生している可能性があることを示すことができたことは社会的意義があると考える。さらに、バーチャルブイ設置後の交通流として、バーチャルブイ3号(一番太平洋側)付近では東京湾から千葉方面に向かう船舶および東京湾に入港する船舶同士で新たにOZT密度が相対的に高い海域が発生しており、この値が過去に衝突のあった場所のOZT密度と近いことを示したことは、人為的要因による衝突事故を未然に防ぐために重要な成果であると考える。

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (4 results)

All 2021 2020 2018

All Journal Article (2 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (2 results)

  • [Journal Article] Estimation of Changes in Marine Traffic Flow Due to Installation of Virtual Buoys Based on the OZT Method2021

    • Author(s)
      G. Fukuda, H. Tamaru, R. Shoji
    • Journal Title

      The International Journal on Marine Navigation and Safety of Sea Transportation

      Volume: 15 Issue: 2 Pages: 445-453

    • DOI

      10.12716/1001.15.02.24

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] OZT・LOPC 密度による衝突ゾーン発生海域の推定2020

    • Author(s)
      福田 厳,田丸 人意,庄司 るり
    • Journal Title

      日本船舶海洋工学会講演会論文集

      Volume: 31 Pages: 271-276

    • NAID

      40022809137

    • Related Report
      2020 Research-status Report
  • [Presentation] OZT・LOPC 密度による衝突ゾーン発生海域の推定2020

    • Author(s)
      福田厳
    • Organizer
      日本船舶海洋工学会講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 衝突ゾーンの見える化~OZT密度およびLOPC密度を用いた推定~2018

    • Author(s)
      福田 厳
    • Organizer
      第2回 航行妨害ゾーン(OZT)の利用と展望 -自動航行に向けて-
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2025-01-30  

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