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All Journal Sibatik Journal : Jurnal Ilmiah Bidang Sosial, Ekonomi, Budaya, Teknologi, Dan Pendidikan
Mohammad Rizki H
Universitas Jenderal Achmad Yani, Indonesia
Arts Computer Science & IT Economics, Econometrics & Finance Education Social Sciences

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KEY PERFORMANCE INDICATOR-BASED EVALUATION OF NATURE-BASED SOLUTIONS FOR REDUCING LOCAL FLOOD RISK IN RESIDENTIAL DRAINAGE SYSTEMS USING EPA SWMM: A CASE STUDY OF GRAND PANORAMA RESIDENCE Willy Cahyadhiputra Gunawan; Eriani Ramadhianti; Endri Pitriadi; Nila Ratna Wulan; Mohammad Rizki H; Riri Elvira Prilian; Trian Miftah S
SIBATIK JOURNAL: Jurnal Ilmiah Bidang Sosial, Ekonomi, Budaya, Teknologi, Dan Pendidikan Vol. 5 No. 7 (2026)
Publisher : Penerbit Lafadz Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47353/sibatik.v5i7.5220

Abstract

Grand Panorama Residence lies on the foothills of Mount Gede Pangrango and has hilly, undulating terrain that accelerates runoff toward lower roads and drainage channels. This study evaluates Nature-Based Solutions through Low Impact Development facilities modeled in EPA SWMM 5.2 to improve neighborhood drainage resilience. Model inputs included annual maximum daily rainfall from Cisalada Station for 2006–2025, drainage dimensions, elevations, and catchment characteristics. The model covered 2.13 ha and comprised 14 subcatchments, 40 junctions, 53 conduits, and 4 outfalls. Three scenarios were assessed: drainage without LID, drainage with combined LID, and drainage with LID plus storage. Performance indicators included runoff volume reduction, peak runoff reduction, flow velocity change, drainage load reduction, and storage attenuation. Total runoff volume decreased from 414.02 m³ to 237.73 m³ after LID implementation, equal to a 42.58% reduction. The combined LID system in subcatchments 4–6 achieved the highest runoff reduction at 75.33%. Bioretention, permeable pavement, and rain gardens reduced runoff by 41.48%, 25.46%, and 38.26%, respectively. Storage reduced peak discharge from 0.011 to 0.003 m³/s, corresponding to 72.73% attenuation. Combined LID and storage provided the most effective overall strategy.
Co-Authors Endri Pitriadi Eriani Ramadhianti Nila Ratna Wulan Riri Elvira Prilian Trian Miftah S Willy Cahyadhiputra Gunawan