Engineering Resilient Flood Mitigation Using Geosynthetic and Composite Barrier Materials Performance Modeling and Environmental Impact Assessment

Abstract

Engineering resilient flood mitigation increasingly relies on geosynthetic and composite barrier materials due to their ability to reduce seepage, improve stability performance, and limit construction-related environmental burdens. This quantitative study evaluated the predictors of flood mitigation performance and environmental impact outcomes using a structured survey dataset (N = 210) and regression-based statistical analysis. Five constructs were measured: geosynthetic barrier performance, seepage control effectiveness, slope stability contribution, installation quality sensitivity, and environmental impact assessment outcomes. Descriptive results showed the highest mean scores for seepage control effectiveness (M = 4.34, SD = 0.58) and geosynthetic barrier performance (M = 4.21, SD = 0.62), confirming strong agreement regarding hydraulic performance benefits. Installation quality sensitivity demonstrated the greatest dispersion (M = 3.88, SD = 0.79), indicating variability in respondent assessment of construction-driven performance risk. Reliability analysis confirmed strong internal consistency across constructs, with Cronbach’s alpha values ranging from 0.81 to 0.91. Multiple regression results indicated that seepage control effectiveness was most strongly predicted by composite configuration (β = 0.34, p < .001) and installation quality sensitivity (β = 0.29, p < .001), with the model explaining 56% of variance (R² = 0.56). Environmental impact assessment outcomes were predicted by barrier type (β = 0.20, p = .002), composite configuration (β = 0.18, p = .007), and durability assumptions (β = 0.17, p = .008), while installation quality sensitivity was negatively associated (β = −0.31, p < .001). This environmental model explained 41% of variance (R² = 0.41). Overall, the findings demonstrated that resilient flood mitigation outcomes were primarily governed by system-level composite design and installation execution, while environmental outcomes were additionally shaped by durability and construction sensitivity considerations.