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Nocturnal vibration and noise from freight trains impacts sleep

Paper i proceeding
Författare Michael Smith
Ilona Croy
Oscar Hammar
Mikael Ögren
Kerstin Persson Waye
Publicerad i Proceedings of Meetings on Acoustics
Volym 19
Sidor 040114
Publiceringsår 2013
Publicerad vid Institutionen för medicin, avdelningen för samhällsmedicin och folkhälsa
Institutionen för medicin, avdelningen för samhällsmedicin och folkhälsa, enheten för arbets-och miljömedicin
Sidor 040114
Språk en
Länkar scitation.aip.org/getpdf/servlet/Ge...
Ämneskategorier Miljömedicin

Sammanfattning

There is a proposed increase in the number of freight trains on the European railway networks, with this growth being facilitated through using the available night time periods. Freight trains are particularly problematic with regards to generation of low frequency vibration and noise which has the potential to propagate to nearby homes and influence the sleep of residents. To investigate the potential impact we conducted a laboratory trial on 24 young healthy persons to ascertain physiological and psychological reactions to nocturnal vibration and noise from freight traffic, and to examine differences between gender and noise sensitivity. Nights with moderate (0.0102 m/s2) and high (0.0204 m/s2) maximum Wd weighted vibration amplitudes and low (20) and high (36) number of train passages were simulated with noise levels being of the same order between nights. Polysomnography was used to record sleep stage and EEG arousals and awakenings. Event-related cardiac activations were analysed using ECG recordings. Questionnaires were administered to obtain subjective sleep parameters. Sleep was more fragmented during nights with higher vibration amplitudes and number of events. Furthermore, heart rate response was higher in the high vibration condition. Results from the subjective data showed less discrimination between nights.

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