Research Information System
JOURNAL OF FLOOD RISK MANAGEMENT, vol.18, no.3, 2025 (SCI-Expanded, Scopus)
In this study, flood mitigation measures, both structural and nature-based ones, are proposed, and their social and economic performances are quantified using a multi-criteria decision analysis framework. The effectiveness of the selected measures is evaluated through numerical modeling. As a case study, flood inundation areas and flood hazard maps are determined in the A & gbreve;va District of Istanbul using high-resolution LIDAR data in a 2D hydrodynamic model for different flood scenarios. The numerical model is calibrated against measured discharges at the river gauging station in the river basin. For the social and economic assessment, a total of seven criteria are assessed: number of affected inhabitants, number of affected cultural items, number of public institutions under flood, expected annual damage, investment cost of measures, annual maintenance cost, and benefit-cost ratio. The overall score of each flood mitigation measure alternative is computed, and their performance is compared for different strategies. For our case study, the implementation of a levee exhibits the highest economic and social performance for flood risk management.