Model-based assessment of a nature-based solution for flood reduction (The Netherlands)

The increasing frequency and severity of urban flooding, exacerbated by factors such as inadequate sewage system maintenance, climate change, urbanization, and haphazard city expansion, pose significant challenges for effective management. These floods not only result in societal issues but also lead to fatalities, financial losses, and environmental damage. Pedestrians and drivers often underestimate the risks during urban floods, with drivers, in particular, displaying overconfidence due to being inside vehicles. Recognizing the urgent need to address these problems, this research focuses on developing a methodology for assessing flood hazards in urban areas, specifically within the Latin American context. The study involves an analysis of the relative danger faced by vehicles exposed to flooding. To achieve this, the research employs a 1D- 2D hydrodynamic model to simulate surface runoff flow and utilizes GIS software to create hazard maps. Additionally, the study introduces a Nature-based Solution tailored to the specific case study, which aims to mitigate flood-related risks and enhance urban resilience. By combining modelling, mapping, and innovative solutions, this research seeks to contribute to better flood hazard assessment and management in urban areas.