Insulating buildings against transportation noise

Davy, J 2004, 'Insulating buildings against transportation noise', in Acoustics 2004 : transportation noise and vibration : the new millennium : proceedings of the Annual Conference of the Australian Acoustical Society, Gold Coast, Australia, 3-5 November 2004.


Document type: Conference Paper
Collection: Conference Papers

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Title Insulating buildings against transportation noise
Author(s) Davy, J
Year 2004
Conference name Annual Conference of the Australian Acoustical Society
Conference location Gold Coast, Australia
Conference dates 3-5 November 2004
Proceedings title Acoustics 2004 : transportation noise and vibration : the new millennium : proceedings of the Annual Conference of the Australian Acoustical Society
Publisher Australian Acoustical Society
Place of publication Darlinghurst, Australia
Abstract Transportation noise contains significant low frequency components. It is difficult to sound insulate buildings against transportation noise because wall cavities are only effective in increasing sound insulation above the mass-air-mass resonance frequency. Stud walls can also have a significant structural resonance in this low frequency range, although it is not yet clear if this is significant in the field. This paper gives typical diesel electric locomotive traffic noise, road traffic noise, aircraft traffic noise and other rail traffic noise spectra. The paper examines the sound insulation of measured wall sound insulation spectra against these typical transportation noise spectra using A-weighted sound level reduction. This will be compared to the Rw + Ctr and Rw values of the walls. Another problem with low frequency sound insulation is the large uncertainty in both laboratory and field measurements. The adoption of Rw + Ctr in the Building Code of Australia will make the common single number rating more appropriate for transportation noise.
Subjects Acoustics and Acoustical Devices; Waves
Copyright notice © 2004 Australian Acoustical Society
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