Factors influencing post-evacuation behaviors following a major earthquake

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K21752
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 9:Education and related fields
• Research Institution: Yokohama National University
• Principal Investigator: Koshiba Yusuke 横浜国立大学, 大学院工学研究院, 技術専門職員 (60419273)
• Co-Investigator(Kenkyū-buntansha): 中山 穣 横浜国立大学, 先端科学高等研究院, 特任教員(助教) (10804932)
• Project Period (FY): 2019-06-28 – 2022-03-31
• Keywords: 不安全行動 / 避難後行動 / 一時避難 / 危機管理 / 防災教育 / 行動意思決定 / フィジカルハザード / 漫画教材

Outline of Final Research Achievements

This project aims to elucidate the post-evacuation behaviors of university members immediately after a major earthquake and to make educational materials. The major findings of this research can be highlighted as follows: (1) several combined situations significantly increased the respondents’ intentions to return evacuated buildings, (2) a text mining demonstrated selective attention elements during the post-evacuation behaviors, and (3) two educational Manga materials related to fires/explosions, and poising/suffocation accidents in laboratories immediately after a major earthquake were draw. In conclusion, the study findings provide useful insights into the understanding of people's unsafe post-evacuation behaviors, largely contributing to the reduction of earthquake-related fatalities in facilities that store and handle hazmat materials.

Free Research Field

安全工学

Academic Significance and Societal Importance of the Research Achievements

大地震発生前の準備行動や避難行動に係る研究は数多く発表されているが，一時避難後の行動についてはほとんど報告が無い．大地震直後に，フィジカルハザードが中にある建物へ再入棟することは，たとえ建物が健全であっても不安全行動である．本研究から，新たに提唱した概念である PEB に関して，再入棟行動に及ぼす要因を特定できただけではなく，この不安全行動を防止するための漫画教育教材を開発することができた．本研究で得られた知見は，地震に係る損失の低減に資することから，ここに社会的および学術的意義があると考えられる．