Fraunhofer Water Systems Alliance (SysWasser)Flooding caused by strong local rainfalls in urban areas often results in severe damages.
For this reason, rules and regulations on national and European levels are currently being laid down for flooding risks in areas according to their use and infrastructures in an attempt to keep costs for damages to a minimum on a longterm basis.
This means that the local authorities responsible for disposing of wastewater will have to test the effectiveness of their drainage systems and estimate failure rates and potential damages as exactly as possible.