Abstract
It has been pointed out that there is a possibility of encountering flood disaster when evacuating. In this case,
the lower half or the whole body is submerged in water, which is directly linked to the danger of life. In this
study, we measured the degrees of the safe exit from the water under various conditions for university
students. It was found that women, wearing a life jacket, and the shape of the wall were the factors that
significantly lowered the degrees of the safe exit. In particular, regardless of swimming ability, most of all the
females were unable to exit from the water surface to a height of 30 cm even when their feet were on the
ground.
