Multi-Objective Model-Based Assessment of Green-Grey Infrastructures for Urban Flood Mitigation

This paper presents the performance quantification of different green-grey infrastructures, including rainfall-runoff and infiltration processes, on overland flow its connection with a sewer system. The present study suggests three main components to form structure proposed model-based assessment. first two provide optimal number green infrastructure (GI) practices allocated in an urban catchment grey such as pipe storage tank sizing. third component evaluates selected combined infrastructures based computation 2D model domain. framework was applied Dhaka City (Bangladesh) where were evaluated relation flood damage investment costs. These implemented separately have impact reduction However, their combination has been shown be best action follow. Finally, it proved that along representation GI within domain, enhances analysis which turn allows drainage system assessed holistically.