Abstract
In order to enhance the emergency preparedness for large-scale floods of the Ara River, we conducted flooded water surface calculation for many possible levee failure points an d categorized the flood patterns. We also conducted hearing survey from the National Police Agency, the Fire and Disaster Management Agency and the Defense Ministry about the number and the capacity of the rescue boats available as well as the estimated cycle time of the rescue operations. Employing these data, we constructed rescue simulation model and estimated the number of the stranded persons and the rescue waiting time. The damage mitigation effectiveness analysis of rescue operations, drainage pumps operations, and evacuation rate improving measures was conducted. The results of the analysis showed the proper operations of rescue and drainage pumps as well as achieving higher evacua tion rate can substantially decrease the number of the stranded persons 3 days, which is an important reference time for stranded persons' health, after the flooding.
