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2023 Fiscal Year Final Research Report

System development for estimation of large scale eruption on air transport

Research Project

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Project/Area Number 21K18749
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 InstitutionKobe University

Principal Investigator

Takebayashi Mikio  神戸大学, 海事科学研究科, 教授 (80236497)

Co-Investigator(Kenkyū-buntansha) 大西 正光  京都大学, 工学研究科, 教授 (10402968)
井口 正人  京都大学, 防災研究所, 教授 (60144391)
Project Period (FY) 2021-07-09 – 2024-03-31
Keywords航空輸送 / 火山噴火 / BCP / フライトプラン
Outline of Final Research Achievements

We analyzed the effects of the 2020 eruption of Mt. Taal in the Philippines and the eruption of Mt. Bezymianny in Russia in 2022. As a result, we were able to classify flight plan change patterns for Mt. Taal using HDBSCAN. For both cases, we clarified the relationship between the timing of information release from volcanic ash dispersion information (VAAC) and changes of flight plans. The results showed that in both cases, the behavior on flight plan change highly depended on the timing of VAAC information issue. Finally, we built a flowchart for each group that would serve as a code of conduct for air traffic in the event of a large-scale eruption of Mt. Sakurajima, proposed a system, and conducted a simulation using scenarios in which the eruption start time was set at daytime and nighttime. We confirmed that the proposed system functions effectively.

Free Research Field

国土計画

Academic Significance and Societal Importance of the Research Achievements

本研究は現在まで詳細に検討されなかった火山噴火の航空輸送への影響をフライトプランとVAACの情報発出時期の関係に着目することで,プラン変更におけるVAACの情報発出時期及び精度の影響を明らかにすることができた.これは現在までほとんど触れられなかった点であり学術的に大きな成果であるとともに,現在頻発する火山噴火の影響をリスクを回避しつつできるだけ小さくするという合理性と安全性の両立と向上に資するものであると言える.また,空港での退避システムについても現在まで一般化した方法論がなかったことからも学術的に大きな進歩であるとともに,今後の空港BCPの深化にも大いに資する成果であると言える.

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Published: 2025-01-30  

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