반지하 주택 침수 영향요인의 공간적 분포 특성 분석 : 서울시를 대상으로 = Spatial Analysis of Flood Vulnerability Factors in Semi-Basement Housing : A Case Study of Seoul

다국어 초록 (Multilingual Abstract)

Semi-basement houses, predominantly occupied by vulnerable populations due to their lower rental costs, are increasingly exposed to flood damage. This study aims to analyze the spatial distribution characteristics of flood damage and its influencing factors in semi-basement housing, and to propose housing policy directions to mitigate the associated vulnerabilities. The vulnerability factors were classified into physical, environmental, and socio-economic categories, and the key influencing variables and spatial distribution patterns were identified. The results indicate that semi-basement houses constructed prior to the Building Code revision and with floor areas under 400 m² are highly vulnerable. Additionally, houses located in low-slope areas and in zones with greater predicted flood depth are at higher risk of flooding. Neighborhoods with higher population density, greater proportions of single-person households, vulnerable populations, and basic livelihood security recipients, are more likely to be at risk of flood damage. In particular, Gwanak-gu, where multiple vulnerabilities overlap, requires urgent housing policy intervention.