Abstract
Natural open-spaces are important for residents to take refuge in case of disaster and to do various kinds of plays in urban area. Therefore, spatial planning must be considered with both situations. Firstly, safety of districts, which were divided by traffic facilities and rivers, were evaluated with area of space per population, trip to space, building age and structure of building. Secondly, this location was evaluated with variability of play in space and bias of functions. Lastly, consideration was done regarding two consequences.
