CHARACTERISTICS OF FLOODING DAMAGE THROUGH THE SUBWAY NETWORK BY PLUVIAL FLOOD

Abstract

 In recent years, rainfall patterns have been changing due to the effects of climate change associated with global warming. In addition, the use of underground spaces such as underground mall and subway is progressing in Osaka, and the subway network is expanding. In this paper, inundation simulations were done for different treatment areas in Osaka City to examine the inundation characteristics of the subway networks. And the inundation risk of subway stations during subway flooding were examined.

 The results show that the subway networks have the highest risk of flooding in each treatment area. In addition, the subway stations that need to be evacuated during pluvial flooding have been clarified.