Difficulty of Evacuation During Underground Inundation and Opinions of Users on Urban Flood

Abstract

The risk of urban flood has been increasing in recent years. Heavy rainfalls that attacked Tokyo, Nagoya and Fukuoka caused the underground inundation. Urgent evacuation from underground spaces is the most important for users when the flood flow intrudes there. However, there are various difficulties which make users more difficult to evacuate. In this paper, the difficulty of evacuation from underground spaces is evaluated with the results obtained by using real size model tests of door and staircase. And opinions of users on urban floods are clarified by the questionnaire research.