Which of these two systems (conventional or sustainable) would you prefer? Why?
conventional. i have no knowledge of the benefits of either of the two systems, but i imagine that the conventional drainage system smells less, and people would have a tendency to dump garbage in the sustainable one.
sustainable drainage - of course because of how it looks ...
i would prefer the sustainable drainage, because if the other one becomes too filled up, the water will come up from people's toilets.
both are necessary.
sustainable systems add value to the urban environment. conventional systems only serve water goals.
sustainable drainage system can better address the problem of extreme rain events.
sustainable system. water can be actively used to create more green and blue spaces in towns - and can often be implemented at a much lower cost than conventional drainage systems.
i think there should be a combination of both for floods. i think it's good that water can penetrate the earth to become drinking water one day instead of "losing" it to the conventional drains where it gets mixed together with excrements and needs to be treated as wastewater. however, i would think there could be an increased risk for buildings to collapse if the ground very close by is soaked like a tub. so i would consider sustainable drainage to be a good idea in nature away from buildings, while conventional drainage would be more suited close to buildings.
sustainable. because it is less expensive and provides more in other qualities to the urban area.