More and more areas are sealed by building constructions and roadways. Rainwater can not seep in and often the storm sewers are overloaded. For several years, pavement systems are thus increasingly called that allow for better rainwater percolation in the underground.

Leading universities and research institutions are dealing with the optimum design of pavement. The robust soil moisture sensor SMT100 of TRUEBNER is used to identifiy the percolation properties. This is an important contribution to environmental protection.