Noise annoyance and activity disturbance before and after the erection of a roadside noise barrier

The Journal of the Acoustical Society of America
Mats E Nilsson, Birgitta Berglund

Abstract

Questionnaire studies were conducted in a residential area before and after the erection of a 2.25 m high noise barrier of conventional type along a heavily traveled road (19,600 vehicles/24 h). The interval between studies was two years. Houses closest to the barrier received a sound-level reduction from -70.0 to 62.5 dB Lden at the most exposed facade. The sound-level reduction decreased with distance to the road, and was negligible for houses at more than 100 m distance. Up to this distance, the noise barrier reduced residents' noise annoyance outdoors and indoors as well as improved speech communication outdoors. Indoors, speech communication and sleep disturbance were slightly but nonsignificantly improved. Predictions of the number of annoyed persons from published exposure-response curves (in Lden) agreed with the percentage of residents being annoyed when indoors, before and after the barrier. Conversely, the percentage of residents being annoyed when outdoors clearly exceeded the predictions. These results suggest that these exposure-response curves may be used in predicting indoor situations, but they should not be applied in situations where outdoor annoyance is at focus.

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Citations

Oct 16, 2010·International Journal of Environmental Research and Public Health·Anita Gidlöf-Gunnarsson, Evy Ohrström
Jun 8, 2013·The Journal of the Acoustical Society of America·Astrid H AmundsenGunn Marit Aasvang
Feb 12, 2009·The Journal of the Acoustical Society of America·Mats E NilssonPaulina Leśna
Feb 12, 2009·The Journal of the Acoustical Society of America·A L Brown, Irene van Kamp
Mar 25, 2011·The Journal of the Acoustical Society of America·Astrid H AmundsenGunn Marit Aasvang
Jul 19, 2013·The Journal of the Acoustical Society of America·Bert De CoenselA L Brown
May 12, 2009·The Journal of the Acoustical Society of America·A L Brown, Irene van Kamp
Aug 21, 2012·The Science of the Total Environment·H E LaszloA L Hansell
Dec 3, 2014·The Science of the Total Environment·Elena AscariMauro Cerchiai
Jan 27, 2015·The Journal of the Acoustical Society of America·Antonio J Torija, Ian H Flindell
Aug 5, 2017·International Journal of Environmental Research and Public Health·Alan Lex Brown, Irene van Kamp

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