Abstract
Decrease in pervious area due to urbanization and rainfall intensification because of climate change prompted to reconsider our philosophy in stormwater management. One of the innovative approaches for stormwater management is a concept called Low Impact Development (LID). Among other techniques of LID, construction of pervious pavement can utilize vast paved surfaces, tradition ally impervious, allowing stormwater to infiltrate through its surface. In this study, the hydrologic performance of a particular pervious concrete system section was investigated using Finite Element Method (FEM) modelling. The influence of initial saturation and rainfall intensity to produce run-off were examined to imply possible design considerations. Further, rainfall data recorded from July 15, 2012 at Busan, South Korea were employed to investigate the effects of evaporation and underdrain in the hydrologic capacity and behavior of the pervious concrete system. The results and implications to hydrological design are discussed herein.
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