Noise Barriers Also called Acoustic Barriers. Conform to the requirements of advanced European standards EN 1793 & 1794. Design derived from acoustic mapping and design study, a pre-requisite for an effective noise abatement solution. Effectiveness of noise barrier reflected in the IL (Insertion Loss) which represents the reduction of noise. ———————————————————————————————————————————————————————————————————————————– Metal Crash Barriers Made as per standards set ...