177 - An investigation of the use of top edge treatments to enhance the performance of a noise barrier using the boundary element method
Oldham D., Egan C., Chilekwa V.
Abstract
The acoustical performance of a simple barrier is limited by the height of its top edge relative to the source of sound and the receiver. A considerable amount of research has been undertaken on the modification of the top edge with a view to enhancing barrier performance. The objective has been to achieve the performance equivalent to a higher simple barrier with potential savings in costs and the degree of visual intrusion. In this paper the relative effectiveness of a number of different treatments is investigated using the boundary Element Method. Treatments investigated include the addition of absorbent material and geometrical configurations. The range of potential benefits is examined.
Citation
Oldham D.; Egan C.; Chilekwa V.: An investigation of the use of top edge treatments to enhance the performance of a noise barrier using the boundary element method, CD-ROM Proceedings of the Thirtheenth International Congress on Sound and Vibration (ICSV13), July 2-6, 2006, Vienna, Austria, Eds.: Eberhardsteiner, J.; Mang, H.A.; Waubke, H., Publisher: Vienna University of Technology, Austria, ISBN: 3-9501554-5-7
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