Sound barrier. it is mainly used for sound insulation and noise reduction of highway, highway, elevated compound road and other noise sources. lt is divided into the pure sound insulation reflection type sound boundary. The latter is a more effective method of sound insulation. lt refers to the wall-like structure set on the side of the railway and highway to reduce the impact of traffic noise on nearby
residents.Sound walls are also called sound screens.A device inserted between the source and the receiver that causes a significant
additional attenuation of sound wave propagation, thereby reducing the noise impact in a certain area where the receiver is located, is called a sound barrier. lt is divided into traffic noise barriers, equipment noise attenuation barriers, industrial barriers, roads and highways