WHAT IS A SOUND BARRIER?
A highway sound barrier is an exterior wall built alongside a roadway or highway that interrupts the flow of sound waves from one area to another.
Two types of highway sound barriers are used:
- A reflective wall, which is solid, will break up sound waves and reflect the noise back to the source location.
- An absorptive sound wall is manufactured with additional materials which are porous and textured applied to the substrate of the wall, that breaks up and absorbs sound waves.