Self activating systems
One of the Dutch system is SCFB
A unique effective flood defense system to protect people and property from inland waterway floods caused by heavy rainfall, gales or rapid melting snow. This system has been developed in the Netherlands to provide optimal protection against extreme high water levels. The barrier systems have proved to be the best flood protection and has already been built and installed in several countries around the globe. Rapid onset flooding cost by heavy rainfall causes the greatest damage to underground parking, metrostation and all other lower entrance. For deploy of the more traditional type of manually operated flood-doors and floodgates systems you need warning time and time to set up the barrier which you don’t have in these cases. The SCFB overcomes all the issues associated with these flood defences, and has the considerable advantage of not requiring any intervention during a flood warning, the SCFB using the approaching floodwaters to automatically raise the barrier; effectively using the problem to create the solution.