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http://dx.doi.org/10.5762/KAIS.2014.15.6.3983

Analysis of Stormwater Runoff Characteristics for Spatial Distribution of LID Element Techniques using SWMM  

Yeon, Jong Sang (Department of Civil Engineering, Sunmoon University)
Jang, Young Su (Department of Civil & Environmental Engineering, Pusan National University)
Lee, Jae Hyuk (Department of Civil & Environmental Engineering, Pusan National University)
Shin, Hyun Suk (Department of Civil & Environmental Engineering, Pusan National University)
Kim, Eung Seok (Department of Civil Engineering, Sunmoon University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.15, no.6, 2014 , pp. 3983-3989 More about this Journal
Abstract
As the storm water runoff characteristics in urban areas have changed owing to urbanization, centralized facilities to reduce the urban flood runoff had been implemented. On the other hand, because they have their limitations, LID (Low Impact Development) of the distributed facilities for storm water runoff reduction is being actively planned and applied. The purpose of this study was to analyze the runoff characteristics for the spatial distribution of typical LID element techniques. This study set a study basin consisting of the five subbasins with the same basin and drainage systems, and analyzed the flood runoff characteristics from the two scenarios, one is for the locations and the other is for the number of green roofs (GR) and permeable pavement (PP), respectively, selected as typical LID element techniques. The SWMM implementation results showed that GR reduces 11.07% of the total and 3.42% of the peak amounts of storm water runoff, and PP leads to 18.09% of the total and 17.94% of the peak discharge reduction for a subbasin. Such a reduction rate is constant regardless of the LID locations, and increases linearly with the number of LID applications. The different runoff reduction rates between the GR and PP applications appear to be due to the effects of the different hydraulic conductivities in the control parameters for each LID.
Keywords
Green Roof(GR); LID(Low Impact Development); Permeable Pavement(PP); Stormwater Runoff;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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