Abstract
Numerical simulation of inundation in actual underground space in Tokyo was conducted. Urban inundation around the space was also computed simultaneously. Characteristic of the inundation process in the space was made clear as a result of this investigation. Evacuation movement of persons from the space was also studied by using the newly invented numerical model. An evacuation route from this space was successfully found and recommended in this study. It was confirmed that the guide for evacuation was effective to make the persons evacuate orderly and safely. The announcement for the persons there to be urged toward the evacuation is also effective so that the evacuation can complete more rapidly. But the special consideration must be needed about the timing not to make the persons be in panic.