New development areas are being built ever closer to existing sources of noise. With the aid of noise protection walls, this noise can be significantly reduced. For some new development areas, it is sufficient to bank up noise protection walls using the available mass of soil. For areas with an adequate supporting surface, a steep wall is suitable as a heavy-duty wall without deep foundations. Conversely in urban areas, smaller systems with deep foundations are needed. The systems from Rau.de are all greenable. On the one hand, the greening provides ecological benefits and on the other simplifies the care and saves costs. In matters of noise protection walls, there are many possible variations. Thus, there are various wall types and different materials that can be combined in accordance with individual wishes.