Abstract
As the frequent occurrence of localized heavy rainfall due to abnormal climate and rapid urbanization, urban flood inundation is increasing unlike in the past. Especially the isolation of drivers and traffic congestion by flooding of the roads give considerable damage economically. In this study, the degrees of Flood Risk on the roads are estimated quantitatively using current accumulated rainfall on a rainy day via RSS Service of Weather Center. It should be effective that the isolation of drivers by flooding will be prevented beforehand.
