`Watershare is a non zero-sum gameCollect and integrate the achieved knowledge

Horizontal rain in a city of the future

Exceptions confirm the rule. In Busan this morning, it did not rain for just one hour, but the expectations are that about 40 cm of rain will fall in two days. This rain sets the scene for the IWA World Water Congress & Exhibition. The wind around our hotel was so strong that horizontal showers turned your dry clothes into saturated textile in just a couple of minutes. Thanks to Typhoon Sanba! All in all it is not so much different from our Dutch autumn weather, but there are two exceptions: the rain is warmer and the density of demolished umbrellas that can be found on the streets and the pavements is much higher.

Early this morning I presented my City Blueprint paper in the session: ‘Integrated Water Management for the City of the Future’. At KWR we have developed an indicator system to assess the sustainability of the urban water cycle and this is what we call the City Blueprint in analogy with the European Commission’s ‘Blueprint to Safeguard Europe’s Water’. Climate change adaptation strategies are part of our indicator system.

The City Blueprint can be used as a first step or quick-scan to benchmark the SWC in cities and may help: (1) to communicate a city’s SWC performance and exchange experiences, (2) to select appropriate water supply and sanitation strategies, (3) to develop technological and non-technological options as future alternatives for the water cycle. This should finally lead to: (4) a selection of measures, including an evaluation of their costs and benefits under different development scenarios, and how to integrate these in long-term planning on urban investments. Good reactions and good discussions followed and continued at the KWR stand at the exhibition hall where lots of colleagues joined because………good coffee attracts good colleagues too!

Kees van Leeuwen

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