WHIS®stone in Nördlingen, Germany
Our WHIS®stone has been successfully installed in Nördlingen in collaboration with the Augsburg State Building Authority. We sincerely thank everyone for the excellent cooperation and are proud of the outcome of this successful project. With the WHIS®stone, residents and visitors now enjoy effective noise reduction and improved acoustic comfort.
WHIS®wall in Vallensbaek, Denmark
In Vallensbæk, Denmark, a 150-meter section of WHIS®wall was installed along the highway for testing purposes. Noise Reduction with WHIS®wall in Denmark The WHIS®wall system is designed to efficiently absorb and reflect noise, providing a significant reduction in sound levels for areas affected by high traffic volumes. In Vallensbæk, this system has been instrumental in […]
WHIS®top in Venlo, the Netherlands
The WHIS®top is a lightweight aluminum diffractor that can be mounted on existing (or new) noise barriers to deflect sound upwards, resulting in a noise reduction of 4 to 5 dB. This is equivalent to raising the existing noise barrier by 2 meters, but without the visual impact of a taller structure. In Venlo, Annakamp, […]
WHIS®wall in Almere, Hagevoortdreef NL
We are proud to announce the successful completion of a 174-meter WHIS®wall in Hagevoortdreef, Almere. Noise Reduction with Minimal Disruption The project was realized with minimal impact on traffic flow, ensuring accessibility and convenience for road users throughout the installation process. The WHIS®wall provides an effective and durable solution to mitigate traffic noise while enhancing […]
WHIS®barrier in Vreeland, Utrecht
Along the N201 near Vreeland, we installed 240 meters of WHIS®barrier on behalf of the Province of Utrecht. This helps to reduce noise nuisance for approximately 60 homes and a primary school. The WHIS®barrier consists of an aluminum WHIS®top mounted behind a standard concrete barrier. The Vreeland Village Council reports that local residents are very […]
WHIS®wall in Amersfoort, Buyten NL
In 2020, a 170-meter-long WHIS®wall was installed in the Buyten district of Amersfoort, along a busy access road. This location required a smart noise solution that could effectively reduce traffic noise without compromising the open character of the neighborhood. Thanks to the WHIS®wall’s low yet powerful design, noise pollution was addressed while maintaining clear views […]
WHIS®wall in Nijmegen, the Netherlands
In Nijmegen, a total of 636 meters of WHIS®wall has been installed. This innovative low-level noise barrier combines a weathering steel diffractor with a low noise barrier, achieving a total height of just 1 meter. Despite its modest height, the WHIS®wall effectively reduces noise by 7 to 9 dB, equivalent to the performance of a […]
WHIS®stone in Nijmegen, the Netherlands
In 2019, 495 meters of WHIS®stone was installed in Nijmegen. The stone reduces noise without obstructing sight, blending almost seamlessly into its surroundings. Its design makes it barely noticeable, and vehicles can safely drive over it, combining functionality with subtle, effective design.
WHIS®top in Venlo, Zuiderbrug NL
In 2019, 4Silence installed 70 meters of WHIS®top on the existing noise barriers of ‘de Zuiderbrug’ along the A73 highway in Venlo, commissioned by the Municipality of Venlo. This location, characterized by continuous traffic noise, required an innovative and space-efficient solution. WHIStop was selected for its high performance and ability to integrate seamlessly with existing […]
WHIS®stone in Hummelo, the Netherlands
Unlike traditional noise barriers, the WHIS®stone stands out as a compact, cost-effective, and highly versatile solution for reducing traffic noise. Its innovative design allows for quick and straightforward installation along roadsides, minimizing disruption during construction. What makes the WHIS®stone truly unique are its cleverly engineered cavities, which are precisely tuned to target multiple sound frequencies. […]