2023 Volume 79 Issue 20 Article ID: 23-20003
This study analyzes the effects of situational awareness that changes over time during heavy rain on evacuation action, and examines the framework of an evacuation behavior decision-making model. Typhoon 19 in 2019 landed on the Izu Peninsula before 19:00 on October 12 with a large size and strong force, bringing record-breaking rainfall to Shizuoka Prefecture, the Kanto region, the Koshinetsu region, and the Tohoku region. River flooding and landslides occurred over an extremely wide area, resulting in 99 fatalities and missing persons, 4,008 houses that were completely or partially destroyed, and 70,341 houses that were flooded. Therefore, we conducted a survey of evacuation behavior among residents of 14 prefectures in Tokyo that were affected by the disaster, in March and June 2020. We focused on those who evacuated and those who suffered damage but did not evacuate, analyzed the differences in their intention to evacuate during heavy rains.
