Effects of nocturnal railway noise on sleep fragmentation in young and middle-aged subjects as a function of type of train and sound level

Saremi, Mahnaz; Grenèche, Jérôme; Bonnefond, Anne; Rohmer, Odile; Eschenlauer, Arnaud; Tassi, Patricia

doi:10.1016/j.ijpsycho.2008.08.002

Cited by 40 publications

(28 citation statements)

References 38 publications

(46 reference statements)

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“…Hence, the number of spontaneous (including noise evoked) arousals was hypothesized to increase with increasing number of noise events and with increasing levels of noise. Thus, our results are at odds with the results reported in a recent laboratory study in which railway noise events with maximum sound levels above 60 dB induced more arousal reactions than noise events with maximum levels of about 50 dB (Saremi et al, 2008). The lack of similar findings in the present study may be explained by the moderate levels of noise exposure.…”

Section: Discussioncontrasting

confidence: 99%

A field study of effects of road traffic and railway noise on polysomnographic sleep parameters

Aasvang

Øverland

Ursin

et al. 2011

The Journal of the Acoustical Society of America

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The aim of this study was to explore and compare the effect of noise from railway and road traffic on sleep in subjects habitually exposed to nocturnal noise. Forty young and middle aged healthy subjects were studied with polysomnography (PSG) during two consecutive nights in their own bedroom. Noise measurements and recordings were conducted concurrently outside of the bedroom façade as well as inside the bedroom of each participant. Different noise exposure parameters were calculated (L(p,A,eq,night), L(p,A,Fmax,night), and L(AF5,night)) and analyzed in relation to whole-night sleep parameters. The group exposed to railway noise had significantly less Rapid eye movement, (REM) sleep than the group exposed to road traffic noise. A significant association was found between the maximum level (L(p,A,Fmax,night)) of railway noise and time spent in REM sleep. REM sleep was significantly shorter in the group exposed to at least a single railway noise event above 50 dB inside the bedroom. These results, obtained in an ecological valid setting, support previous laboratory findings that railway noise has a stronger impact than road traffic noise on physiological parameters during sleep, and that the maximum noise level is an important predictor of noise effects on sleep assessed by PSG, at least for railway noise.

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Section: Discussioncontrasting

confidence: 99%

A field study of effects of road traffic and railway noise on polysomnographic sleep parameters

Aasvang

Øverland

Ursin

et al. 2011

The Journal of the Acoustical Society of America

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“…Another limitation is the possibility that some stimulation other than the injection of water may elicit the arousal and consequently the swallow. Noise has been associated with sleep disruption and arousals [31,32]. The level of these noises ranged from 40 to 65 dB, which approximately corresponds to bird calls and restaurant conversations, respectively.…”

Section: Discussionmentioning

confidence: 99%

Sleep Stage Coordination of Respiration and Swallowing: A Preliminary Study

et al. 2016

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Swallowing is an important physiological response that protects the airway. Although aspiration during sleep may cause aspiration pneumonia, the mechanisms responsible have not yet been elucidated. We evaluated the coordination between respiration and swallowing by infusing water into the pharynx of healthy young adults during each sleep stage. Seven normal subjects participated in the study. During polysomnography recordings, to elicit a swallow we injected distilled water into the pharynx during the awake state and each sleep stage through a nasal catheter. We assessed swallow latency, swallow apnea time, the respiratory phase during a swallow, the number of swallows, and coughing. A total number of 79 swallows were recorded. The median swallow latency was significantly higher in stage 2 (10.05 s) and stage 3 (44.17 s) when compared to awake state (4.99 s). The swallow latency in stage 3 showed a very wide interquartile range. In two subjects, the result was predominantly prolonged compared to the other subjects. There was no significant difference in the swallow apnea time between sleep stages. The presence of inspiration after swallowing, repetitive swallowing, and coughing after swallowing was more frequent during sleep than when awake. This study suggests that the coordination between respiration and swallowing as a defense mechanism against aspiration was impaired during sleep. Our results supported physiologically the fact that healthy adult individuals aspirate pharyngeal secretions during sleep.

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“…In their field study, Pennig et al (2012) found that the annoyance response due to railway noise increased significantly with increasing total number of trains and number of freight trains but not with increasing number of passenger trains. Freight railway noise has also been shown to have a greater effect on sleep disturbance than passenger railway noise (Saremi et al, 2008) and even aircraft noise in some cases . These studies suggest a difference in the human response to different sources of railway noise, so it is not a surprising result that differences also exist between sources of railway vibration.…”

Section: Discussionmentioning

confidence: 99%

“…They concluded that residents are more likely to report annoyance due to freight railway traffic, yet no consistent differences in dose-response relationships were found when the effects of differing noise levels were removed. A laboratory study performed by Saremi et al (2008) investigated the effects of nocturnal railway noise on sleep fragmentation and found that awakenings were produced more frequently by freight trains than automotive and passenger trains. Their results showed that, even for equal maximum noise levels and pass-by patterns during the night, sleep is more fragmented by freight trains than by passenger and automotive trains.…”

Section: Introductionmentioning

confidence: 99%

Exposure-response relationships for annoyance due to freight and passenger railway vibration exposure in residential environments

Sharp

Woodcock

Sica

et al. 2014

The Journal of the Acoustical Society of America

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In this work, exposure-response relationships for annoyance due to freight and passenger railway vibration exposure in residential environments are developed, so as to better understand the differences in human response to these two sources of environmental vibration. Data for this research come from a field study comprising interviews with respondents and measurements of their vibration exposure (N ¼ 752). A logistic regression model is able to accurately classify 96% of these measured railway vibration signals as freight or passenger based on two signal properties that quantify the duration and low frequency content of each signal. Exposure-response relationships are then determined using ordinal probit modeling with fixed thresholds. The results indicate that people are able to distinguish between freight and passenger railway vibration, and that the annoyance response due to freight railway vibration is significantly higher than that due to passenger railway vibration, even for equal levels of exposure. In terms of a community tolerance level, the population studied is 15 dB (re 10 À6 m s À2 ) more tolerant to passenger railway vibration than freight railway vibration. These results have implications for the expansion of freight traffic on rail, or for policies to promote passenger railway.

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Effects of nocturnal railway noise on sleep fragmentation in young and middle-aged subjects as a function of type of train and sound level

Cited by 40 publications

References 38 publications

A field study of effects of road traffic and railway noise on polysomnographic sleep parameters

A field study of effects of road traffic and railway noise on polysomnographic sleep parameters

Sleep Stage Coordination of Respiration and Swallowing: A Preliminary Study

Exposure-response relationships for annoyance due to freight and passenger railway vibration exposure in residential environments

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