市町村による豪雨防災情報活用の実態分析

抄録

The present state of use of heavy rainfall disaster information by municipality offices in Japan was researched based on questionary survey. 2,393 questionnaire forms were posted to disaster prevention section of municipalities in July 2005, and 1,089 municipalities completed it. Four years have passed since the real time rainfall and river water level information web site administrated by the River Bureau, MLIT was released. But, 22% of all the respondents did not yet know the web. The rate of municipalities having released flood hazard map was 25%, and it was higher than the result of survey in 2003. It is important to support residents after hazard map release, such as lecture, workshop and others. However, 66% of municipalities did nothing for them after distribution of hazard map. According to present Japanese disaster related law system, municipality mainly has to take non-structural disaster prevention measures for residents. However, 82% of municipalities responded “Our office lacks specialist of disasters”. It is necessary that the technical and human support for municipality is made by governmental sectors.