Pre-resilience Group Activities Against a Forthcoming Big Flood Disaster in Tokyo Below-Sea-Level Area
- Ichiko, Taro (Tokyo Metropolitan University) ;
- Kato, Takaarki (University of Tokyo) ;
- Ishikawa, Kinji (NPO "Ah! Safe and Amenity MACHIDUKURI")
- Published : 2011.02.24
Abstract
In April 2010, Japan Cabinet Office has published the first countermeasure report for severe flood disasters. This report showed various flood-disaster scenarios and factors that widened damages. One of important suggestions was to transmit precious information for long-distance evacuation. So far, local municipalities have made Flood Hazard Map to inform resident risk and evacuation. In this paper, cognition and effectiveness of a flood hazard map in the down ARAKAWA river Tokyo were measured by social questionnaire survey. In conclusion, there were 3 factors to effect validity of a flood hazard map. There were (1) commitment to their neighborhood organization, (2) experience of Kathleen typhoon in 1947 and (3) level of using targeted river. As results, a logical diagram about a flood hazard map perception was drawn and discussed from a view of community-based approach.
Keywords
- Flood hazard map;
- the down ARAKAWA river basin in Tokyo;
- residents social questionnaire survey;
- a long-way evacuation;
- a sense of community defence