Abstract
Improvement of disaster prevention facility for a flood is necessary long time and a large amount of budget. The minimization of flood damage is incomplete without enhancement of soft measures in addition to hard measures. The serious flood damage due to Typhoon No. 1411 has occurred in Naka town, Tokushima Prefecture. We analyzed the relationships between the disaster information providing by administration and evacuation of residents. Based on the results, we have developed the disaster management action plan which is called “Timeline” of government and residents.