The Water-Gate® is used in Japan since 2007. The heavy urbanized coast of the island is often faced with torrential downpours.
Numerous public equipment is asking for help and the Water-Gate® is the solution. The Tokyo Airport invested in flood protection and so did the underground bike parking, a curious Japanese reality.
The Water-Gate® is deployed before the flooding takes place, where heavy traffic would make it impossible to install permanent protection which would hamper traffic.