WHAT IS A NOISE BARRIER?
Also Known As Sound Walls, Sound Berms, or Sound Barriers.
Noise barriers — also known as sound walls, sound berms, sound barriers or acoustical barriers — are outdoor walls that provide the most effective method for blocking noise from busy roads, highways, railways and industrial sources. They’re designed to reduce the transmission of sound, protecting people against noise pollution that can cause stress and other adverse effects.
Noise barriers interrupt sound from a source like vehicles traveling to a receiver, such as a home. The sheer mass of the barrier stops the sound energy and redirects it. About three-quarters of noise barriers are made of precast concrete or masonry block.