Evaluating Green Infrastructure for Urban Flood Control: A Sustainable Approach to Environmental Protection in Barangay Lorega, Cebu City

Urban flooding presents a persistent environmental threat in rapidly urbanizing cities like Cebu City, Philippines. The increase in impervious surfaces has disrupted natural water infiltration, heightening flood vulnerability during extreme rainfall events. Traditional flood control infrastructures, such as concrete barriers and drainage systems, have proven insufficient against intensifying climate challenges. This study explores the role of green infrastructure (GI)—including permeable pavements, green roofs, rain gardens, and constructed wetlands—in enhancing flood resilience in a tropical, densely populated urban setting. Using a descriptive-quantitative approach, data were collected through surveys and interviews with 200 respondents to assess the community’s awareness and perception of GI's effectiveness. Results indicate a high level of community awareness and strong agreement on the potential of GI to support flood control, particularly through well-maintained, localized designs and community engagement. Moreover, GI was viewed as highly effective in reducing flood risks, offering environmental benefits, promoting economic sustainability, and strengthening community resilience. While the statistical impact of GI on flood control was modest (adjusted R² = 2.1%), its perceived value underscores its relevance as a supplementary strategy within a broader sustainable urban planning framework. Findings support Ecological Modernization and Green Infrastructure theories, advocating for integrated, nature-based approaches. Recommendations emphasize policy integration, stakeholder collaboration, and public education to scale GI solutions. This study contributes localized insights into sustainable flood management and provides a model for similar tropical urban centers.