The events are implemented for both current and climate change precipitation intensities of the RCP 8.5 projection for 2040–2069. The study is based on single event simulations of three return periods with the physically based software PCSWMM. The living-lab approach pursues the application of nature-based solutions in a real planning case to achieve positive climate effects while densifying the neighbourhood. This study investigates the combined quantitative hydrological impact of densification and sustainable stormwater management measures in a residential neighbourhood in Munich, Germany. Sustainable urban drainage systems are considered as a strategy to handle stormwater runoff locally and thus relieve the sewage system.
Densification implies the increase of water impervious area which increases the vulnerability to flooding during extreme precipitation events. To restrict urban expansion in the outskirts, a common strategy is to densify existing neighbourhoods. The demand for living space is rising in growing cities.
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