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Multiple-edge noise barriers

Crombie, D.H., Hothersall, D.C. and Chandler-Wilde, S.N. (1995) Multiple-edge noise barriers. Applied Acoustics, 44 (4). pp. 353-367. ISSN 0003-682X

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To link to this item DOI: 10.1016/0003-682X(94)00032-Q


A numerical model using boundary element techniques is discussed which enables the insertion loss for various noise barriers of complex profile and surface cover to be calculated. The model is applied to single-foundation noise barriers to which additional side-panels are added to create fork-like profiles. Spectra of insertion loss and mean insertion loss results over a range of receiver positions for a broadband source are presented. It is concluded that ‘multiple-edged’ barriers show a significant increase in acoustic-efficiency over a simple vertical screen. Adding lightweight side-panels would be a relatively inexpensive measure, and one which could be applied to barriers already in existence. This type of barrier would also allow the height of the construction to be kept to a minimum.

Item Type:Article
Divisions:Science > School of Mathematical, Physical and Computational Sciences > Department of Mathematics and Statistics
ID Code:32667

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