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Full text: Ecological building concepts (Rights reserved)

Stormwater management – A project focus of KURAS Building/plot level City quarter level Planning of measures on buildings generally focuses on residents. Responsibility lies with the private or public owner. . . Measures in city quarters are planned with a focus on residents and on water-management requirements. Responsibility generally lies with the public sector. De-paving Vegetated buildings • Partially sealed surfaces • Extensive and intensive green roofs • Green facades Infiltration Rainwater harvesting • Through a biologically active soil layer • Underground • Combined (percolation/retention) • Special forms • Irrigation • Indoor cooling • Service water Infiltration (on site) Artificial ponds and streams • Through a biologically active soil layer • Underground • Combined (percolation/retention) • Special forms • Ponds • Water-carrying trenches Treatment • Decentralized treatment at the gully Building/ plot level City quarter level Sewer catchment level Sewer catchment level Measures at the level of the sewer catchment area generally built to fulfil water-management requirements. Responsibility generally lies with the operator of the sewer network and the public sector. Treatment • Sedimentation basin (separate sewer system) • Lamella particle separator • Retention soil filter • Special forms Storage capacity in sewer • Retention tank (combined sewer system) • Retention sewer (combined sewer system) • Storage activation (combined sewer system) • Retention basin KURAS has considered the potential of stormwater management at three spatial scales: at the building/plot, the city quarter and the sewer level. Both the measures and the responsibilities differ among these levels. The initial aim of KURAS was to evaluate the impacts on residents, the environment and economic aspects in a uniform manner. Based on this evaluation, a method was developed that can support the integrated planning of measures for stormwater management for specific urban neighbourhoods. The results show that the combinations of measures – from building and quarter levels through to sewer catchment area – that were developed using the KURAS method for two Berlin neighbourhoods (in Schöneberg and Pankow) significantly improved the targeted effects for the environment and for residents. The following effects were evaluated as part of KURAS: Residents ■■ Building physics and services ■■ Landscape quality ■■ Urban climate Environment ■■ Biodiversity ■■ Groundwater/soil passage ■■ Surface waters Economic aspects ■■ Costs of measures ■■ Use of resources Research for sustainable development All results available at: www.kuras-projekt.de Contact: Dr. Andreas Matzinger andreas.matzinger@ kompetenz-wasser.de Dr. Pascale Rouault pascale.rouault@ kompetenz-wasser.de
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