Current Status of Creating Flood Hazard Maps by Local Residents and Factors Affecting the Information on Maps

抄録

To prepare for the frequent and increasingly severe disasters from heavy rains in recent years, productions of the flood hazard maps (hereinafter “FHM”) formulated by local residents are progressing as one of the regional disaster prevention improvements. In this study, I distributed questionnaire surveys to neighborhood associations in Shiga Prefecture and analyzed the cartographic information in order to clarify the status of FHM production by local residents and the factors that influence the cartographic information. The cluster analysis resulting from the questionnaire given to 292 neighborhood associations and 24 pages of the FHM cartographic data revealed the following statistics: i) Approximately 16.8% of neighborhood associations, which is relatively few, had created an FHM. This showed the low level of local residents' interest toward producing the map. ii) Some neighborhood associations where there were areas with high risks of floods had never produced an FHM. iii) Cartographic information was influenced by levels of the regions' flood damage risk and also levels of the residents' flood risk awareness, rather than by the methods of creating the maps.