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Experimental studies on sleep disturbances due to railway and road traffic noise.

Paper i proceeding
Författare Evy Öhrström
Mikael Ögren
Tomas Jerson
Anita Gidlöf-Gunnarsson
Publicerad i Proceedings of the 9th Congress of the International Commission on the Biological Effects of Noise (ICBEN) 2008, July 21-25, Foxwoods CT,USA
Volym available on CD
Sidor 8
ISBN ISBN 978-3-9808342-5-4
Publiceringsår 2008
Publicerad vid Institutionen för medicin, avdelningen för samhällsmedicin och folkhälsa
Sidor 8
Språk en
Ämnesord Sömnstörning, buller, tåg, vägtrafik
Ämneskategorier Folkhälsovetenskap, global hälsa, socialmedicin och epidemiologi, Övrig annan samhällsvetenskap

Sammanfattning

According to EU position papers on annoyance and on sleep disturbance, railway noise causes less adverse effects than noise from road traffic and aircraft. Some more recent studies show, however, similar or even stronger effects from railway noise than road traffic. The present experimental study examined effects on sleep from railway and road traffic noise. Eighteen young, healthy subjects with normal hearing slept 5 nights in the laboratory. They were exposed during three nights to railway noise and two types of road traffic noise, one with the same equivalent sound level as the railway noise (Lnight 31 dB) and one with the same maximum sound level as the railway noise (LAFmax 54 dB). The frequency spectra of the three sound exposures were filtered to correspond to a realistic situation in the home with the bedroom window slightly open. Sleep quality was evaluated by questionaires. The overall results revealed no differences in subjective sleep (time for falling asleep, difficulties in falling asleep, sleep quality or nighttime annoyance due to noise) between nights with railway noise and nights with road traffic noise. The average number of awakenings per night was however somewhat higher for railway noise (2.2 awakenings) as compared with the road traffic noises (1.5 and 1.3). The results from the present study contradict, to some extent, the results obtained in the latest meta analysis of dose-response relationships between sleep disturbances and different types of traffic noise, which suggest that railway noise causes less sleep disturbances than road traffic noise.

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