“Van Schie has long-term experience in installing noise barriers. We are always looking for the best solutions. By participating in the SBIR program, working on innovative solutions to reduce noise along roads and the SBIR FunBar, wonderful ideas arise,” Van der Sar says. “In collaboration with TNO and conceptual engineer Willem Bos of Bosvariant, we came up with some surprising designs in which limiting noise pollution, air quality and appearance are key elements.”
TubeReducer
“The so-called TubeReducer is constructed from a stable flexible tube of light material, based on the mass-spring-mass system, with which high sound insulation can be achieved at low mass,” explains Van der Sar. The horizontal pipe can be placed along a (provincial) road and can be covered with narrow hard pressed rock wool ribs for higher sound insulation. If desired, the tube can be lined with climbing plants for an attractive embedding in the landscape.
3D PrintWall
The 3D PrintWall is an innovative earth wall that is constructed with a sliding mold formwork, soil nets and ready-to-use turf, which allows a steep slope angle to be achieved. This also significantly reduces the foot width and allows the top of the sound barrier to be placed closer to the roadway. Van der Sar: “The idea is that the whole thing will eventually be ‘3D printed’ at the site of the traffic road or construction site, so to speak, by being able to pour the soil wall with a special sliding mold in no time, including the grass finish!”
