| Title |
Optimization of Low Impact Development(LID) Design for Reducing Runoff and Suspended Solids Reduction Using Storm Water Management Model(SWMM) |
| Authors |
김사욱(Sawook Kim) ; 이태호(Taeho Lee) ; 최지호(Jiho Choe) ; 김민석(Minseok Kim) ; 송정훈(Jeonghoon Song) ; 장지현(Jihyun Jang) ; 백상수(Sangsoo Baek) |
| DOI |
https://doi.org/10.15681/KSWE.2025.41.6.510 |
| Keywords |
LID optimization; Peak pollutant load; Runoff assessment; Storm water management model (SWMM); Water quality assessment |
| Abstract |
Rapid urbanization and the extensive growth of impervious surfaces, particularly from asphalt pavement, have heightened the challenges of managing non-point source (NPS) pollution. Coupled with the increasing frequency and unpredictability of extreme rainfall events due to climate change, cities with high levels of imperviousness are becoming more susceptible to flooding and pluvial inundation. Low Impact Development (LID) practices have emerged as effective strategies for stormwater management, helping to mitigate runoff, reduce pollutant loads, and restore vital urban hydrological functions. Therefore, integrating LID techniques is crucial for urban flood management, controlling NPS pollution, and sustainably restoring the urban water cycle. However, thorough experimental validation and advanced modeling analyses are essential to comprehensively evaluate LID performance and develop reliable design guidelines for practical application. This study simulated stormwater runoff and pollutant transport under various rainfall scenarios using the EPA’s Storm Water Management Model (SWMM), applied to the storm sewer network of the Jungbang New Town District in Gyeongsan City, South Korea. Different LID configurations, scales, and implementation ratios were systematically tested to identify optimal combinations for effective runoff reduction and water quality improvement. The findings provide a solid scientific foundation for sustainable urban water cycle management and long-term water quality enhancement, offering valuable insights for policymakers, engineers, and urban planners. |