How do Conventional Barriers work?
- Sound propagates from a source as expanding pressure waves.
- Placing a barrier in the direct path of the sound reduces the sound energy reaching the receiver.
- Mechanisms involved are Reflection, Diffraction and Mass-density law.
- Barriers need to be very dense, wide or tall for optimal performance i.e. more material is required.
[B. Kotzen & C. English, Environmental Noise Barriers – A guide to their visual design, E & FN Spon, ISBN: 0-419-23180-3 (1999)]
Public reaction to noise barriers appears to be generally positive, with residents adjacent to barriers reporting improved living conditions. However current barrier technology also evokes negative reactions including:
- Restriction of view
- Feeling of confinement
- Loss of air circulation, sunlight and lighting
Our technology alleviates much of the negative impacts of noise barriers, whilst offering improved attenuation performance.