The Effect of Design Efficiency of the Wall Barrier ( Screen ) On Traffic Noise Attenuation (original) (raw)
This research evaluates the sound performance of screen models exposed to linear finite-length sound source as a mean of traffic noise attenuation to prevent sound waves penetration through the wall barrier (screen) gaps and sound diffraction around its edges which affect the sound shadow area in front of the building behind the screen which act as a noise barrier. A theoretical background of the acoustical performance of screens that act as a noise barrier between the source (vehicles) and the receiver environment is presented. Mathematical models are used to analyze the proposed case studies, and to test the effect of different type of screen design on geometrical spreading of direct and diffracted sound waves around the screen reaching the front facade of buildings facing traffic noise. The objective of the research is to study 1. The effect of screen design and their geometrical configuration on noise penetration to the acoustical shadow zone behind the screen in aligned buildin...
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