The need to decouple

The climate is changing. It's not only raining more often, but also harder. Especially in urban areas, heavy downpours are causing flooded roads, squares and car parks. People and businesses expect their local authorities to find a quick solution for these severe water problems. Landowners themselves are primarily responsible for the drainage of rainwater that falls on their land, but when it comes to public spaces, such as squares and car parks, the local authority has a legal obligation to provide facilities that enable the rainwater to be drained.

To prevent flooding and overloading of the combined sewer by the release of clean rainwater, more and more authorities are attempting to decouple rainwater drainage. But how can rainwater best be drained in order to prevent flooding on the surface?

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Rutger van der Veld

Business Manager,
Urban climate adaptation