Author(s): Negar Moghtaderi; Borjana Bogatinoska; Floris Boogaard; Annemargreet De Leeuw
Linked Author(s):
Keywords: Hybrid measures; Urban stormwater management; Climate adaptation; Green–grey infrastructure; Urban resilience
Abstract: Urban areas increasingly face pluvial flooding and waterlogging due to intensifying precipitation extremes. Hybrid stormwater measures that integrate engineered and nature-based components are emerging as promising adaptation strategies capable of enhancing hydrological performance while delivering multifunctional co-benefits. This study examines urban hybrid measures through expert interviews to better understand their conceptualisation, assessment, and implementation challenges. Eight interviews with practitioners and researchers were analysed using a thematic approach. Results indicate that hybrid measures are commonly adopted in urban settings due to spatial constraints and governance realities, yet lack integrated assessment frameworks capturing the interaction between green and grey components. Findings highlight variability in performance indicators, implementation barriers related to governance and finance, and the importance of adaptability and monitoring. The study concludes with recommendations for integrated assessment approaches and governance strategies supporting scalable urban hybrid stormwater solutions.
Year: 2026