355 - Prediction of the attenuation given by a baffled highway using a scale model
Serra M.
Abstract
Whenever a road is built or modified, the resulting acoustical consequences have to be quantified in order to protect, if need be, the buildings located in the neighbourhood of the road noise sources. In France, the laws in force define either a maximum noise level or a maximum sound level increase not to be exceeded in front of the facades of dwellings. To this end, different kinds of acoustical protections are available: the most common of these are tunnels and noise barriers but another kind of protection may consist in absorptive baffles hung over the highway. So far, studies dealing with that subject are very few, with only two realizations existing in France. Also, the usual environmental acoustics softwares are not able yet to simulate this kind of system. For these reasons the study was made using a scale model. This paper submits the different aspects of the study from the establishment of the metrological system to the production of results.
Citation
Serra M.: Prediction of the attenuation given by a baffled highway using a scale model, 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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