2021 Fiscal Year Final Research Report
Framework for improving situational awareness in the event of floods and landslides through risk audits of evacuation action
| Project/Area Number |
19H02263
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Review Section |
Basic Section 22050:Civil engineering plan and transportation engineering-related
|
|---|
| Research Institution | Kumamoto University |
|---|
Principal Investigator |
Kakimoto Ryuji 熊本大学, 大学院先端科学研究部(工), 教授 (00253716)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
神谷 大介 琉球大学, 工学部, 准教授 (30363659)
吉田 護 長崎大学, 水産・環境科学総合研究科(環境), 准教授 (60539550)
塚井 誠人 広島大学, 先進理工系科学研究科(工), 准教授 (70304409)
|
|---|
| Project Period (FY) |
2019-04-01 – 2022-03-31
|
| Keywords | 避難行動 / 自然主義的意思決定 / 二重過程理論 / 状況認識の失敗 / 防護動機理論 / 豪雨災害 / アンケート調査 |
|---|
| Outline of Final Research Achievements |
Torrential rains in July 2018 were a major cause of river overflows, flood damage, and landslides, particularly in western Japan. At the time, 232 fatalities and missing persons were recorded, with most human damage caused by delays in evacuation. Evacuation delays tend to occur during most torrential rain events. Such delays can presumably be attributed to a situational awareness error in residents’ disaster response. This study analyzed the evacuation decision-making structure by adding a situational awareness error to the protection motivation theory framework. Most respondents did not evacuate despite showing high intention to evacuation. Such respondents evacuated only in response to a trigger, such as a dramatic change in their surrounding environment or receiving evacuation appeals. By considering situational awareness errors in protection motivation theory, this study identified active and passive evacuation decisions to clarify the stage at which evacuation delays occurred.
|
| Free Research Field |
土木計画学
|
| Academic Significance and Societal Importance of the Research Achievements |
気象情報や避難情報に基づいて自ら能動的に避難している人は少数であった．多くの人がSAの失敗をしており，それが避難の妨げになっていることが分かった．避難している人の多くもSAの失敗をしており，災害が発生する切迫した状況や避難を呼びかけられることによって避難した受動的な避難であった．一方で，災害リスク認知が向上すれば，何らかの一押しがあれば避難が促進されることも分かった．平時の防災・減災学習で気象情報や避難情報の意味を理解するとともに周辺地域に潜む自然災害リスクを正しく理解するとともに危機的な状況に陥る前にSAを促すトリガーを弾くことで避難を促進させる可能性が示唆された．
|
