WHISSPER – fighting traffic noise exposure by diffraction

The EU-funded WHISSPER project will promote new technology developed by 4Silence, a company based in the Netherlands. Its revolutionary, yet simple and sustainable solution is based on the principle of diffraction – bending traffic noise in an upward direction to reduce horizontal noise. Prototypes tested in the Netherlands have proven highly efficient and easy to implement and maintain. The WHISSPER project will focus on optimising the 4Silence solution and testing it in various operational environments.


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