Acoustic Barrier against Traffic Noise
Traffic noise is one of the most common causes of noise nuisance in Belgium. The constant roar from a motorway, ring road, regional road, or railway line penetrates your garden, terrace, and even your home. With a well-designed acoustic barrier against traffic noise, you significantly reduce the noise. Want to understand how it works acoustically? Read our guide on how an acoustic wall works or compare an acoustic wall with an earth berm. Noise Solutions from Beveren-Kruibeke-Zwijndrecht designs, supplies, and installs custom acoustic barriers throughout Belgium and Luxembourg.
Why an Acoustic Barrier Works Against Traffic Noise
An effective acoustic barrier combines two principles: absorption and insulation. The barrier intercepts the sound waves before they reach your home or garden and partly converts the energy into heat. The closer the barrier is to the noise source or the receiver, the greater the reduction. For traffic noise, the height, length, and composition of the barrier primarily determine the final result. Our experience shows that a correctly placed barrier provides reductions of up to 15 dB, which is perceived by the ear as more than a halving of the noise.
How an Acoustic Wall Blocks Sound
A good acoustic wall is much more than just a thick wall. Its effectiveness comes from a well-thought-out combination of materials and placement, which together leverage three acoustic principles. These three mechanisms work simultaneously and reinforce each other.
Want to delve deeper into the technology? Read our full explanation on how an acoustic wall works.
- Physical obstruction: the massive wall forms a physical barrier between the noise source and the receiver, blocking direct sound waves
- Sound absorption: soft core materials like coconut fibre or rock wool capture sound energy like a sponge, instead of reflecting the sound back into the environment
- Sound diffraction: the wall deflects remaining sound waves, directing them over and around the barrier instead of straight to your home or garden
Why the Right Material Combination Makes the Difference
A thick wall alone is not enough. An effective acoustic wall combines different layers, each performing a specific acoustic function. Only when these layers work together do you achieve a measurable reduction in decibels.
This is precisely why our Kokowall, Noise-Reducer, and Eco Barrier systems are built with multiple layers, always with a hard exterior and an absorbent core.
- A hard, solid outer layer (wood, steel, or concrete-look) that reflects and blocks sound
- An absorbent core (coconut fibre or rock wool) that converts sound energy into heat
- Thoughtful height and placement, as close as possible to the source or receiver, for maximum diffraction
- Seamless connections between panels and at the ground, because every gap lets sound through
Which Acoustic Barriers are Suitable for Traffic Noise?
Not every acoustic barrier is equally suitable for traffic situations. Based on your location, property line, aesthetic wishes, and acoustic requirements, we recommend one of our proven systems.
- Kokowall coconut fibre acoustic barrier: natural barrier with high absorption, can be vegetated with climbing plants and is excellently suited for residential areas and gardens
- Noise-Reducer steel acoustic barrier: modular barrier with mineral wool, maximum insulation and fire-resistant, ideal along motorways and industrial zones
- Eco Barrier self-supporting acoustic barrier: fillable with soil or gravel, fully vegetatable and suitable for narrow construction strips from about 50 cm
- Transparent acoustic barrier in PMMA or glass: preserves view and light, often used as an upper edge on an existing barrier or along scenic routes
Advantages of Our Approach
You are choosing a partner who manages the entire process, from acoustic analysis to final inspection. Our barriers meet the strictest European standards and are designed for a lifespan of 20 to 25 years.
- Fully custom-designed for your situation and property
- Vegetatable versions that integrate naturally into the landscape
- Narrow construction strip possible from about 50 cm with self-supporting systems
- CE-certified and tested in accredited acoustic laboratories
- 10-year warranty on construction and materials
- In-house installation team, no subcontracting
Applications along Belgian Roads
We carry out projects along the entire Belgian road and rail network, from private gardens to large infrastructure projects for government and contractors.
- Motorways such as E17, E19, E40, E34, and E314
- Ring roads around Antwerp (R1), Brussels (R0), Ghent (R4), and other cities
- Busy regional roads and access roads in town centres
- Railway lines and tram routes with freight traffic or frequent passage
- Cycle superhighways and towpaths along canals
- Residential areas near traffic junctions or on- and off-ramps
Our Approach in 4 Steps
An acoustic barrier against traffic noise always starts with a good analysis. No two situations are identical, and only a custom design delivers the expected result.
- On-site analysis: we assess the noise source, distance, height differences, and property line
- Design and advice: choice of material, height, and length with substantiated reduction values
- Production: all elements are custom-produced in our workshops
- Installation by our own team: quick, clean installation with minimal disruption
Request Your No-Obligation Quote
Do you want to permanently tackle traffic noise in your garden or living environment? Contact us for advice and a custom quote. We take the time to understand your situation and propose the solution that best fits acoustically, aesthetically, and budget-wise. Also see our realised acoustic barrier projects.
Request your quote today
Our experts will be happy to advise you on the best solution for your situation. Contact us for a non-binding conversation.