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- Persson Waye, Kerstin, 1959, et al.
(författare)
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Methods for assessing preschool children's perception and experience of their soundscape. (Invited paper)
- 2006
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Ingår i: Congress and exposition of noise control engineering Inter-Noise;Honolulu, Hawaii, USA, 3-6 December. - : Congress and exposition of noise control engineering Inter-Noise.
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Konferensbidrag (refereegranskat)abstract
- Previous investigations indicate that noise may be a serious health problem in preparatory schools. The high sound pressure levels originate mainly from the children’s own activities indoors. Little is known of how preschool children (1-6 years) are affected. To gain a deeper understanding of how preschool-aged children recognize, communicate, perceive and are affected by the soundscape at their preparatory school. This, in order to develop a questionnaire assessing possible adverse effects on children. 36 children (4-6 years old) were interviewed in 18 focus-groups. The interviews were analysed with grounded theory. The children described their experience of sounds related to which consequences the sound had for themselves, the type of sound, their understanding of its source and the communicability of the “sound”. Children described physical symptoms, i.e. pain in ears, stomach, head and also feeling sick. Sounds described as “screaming, crying and angering noise” was experienced as disturbing and threatening. They handled this by avoiding strategies, e.g. withdrawal and “holding their ears”. Squeaking, creaking and scratching noise was described as unexpected and as a physical experience. Background sounds were often non-reflected, unknown sounds, not easy to communicate. Based on the findings a questionnaire was developed.
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| 3. |
- Pedersen, Eja, et al.
(författare)
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Wind turbine sound – how often is it heard by residents living nearby?
- 2009
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Ingår i: Proceedings of EURONOISE, 8<sup>th</sup> European conference on noise control, Edinburgh, 26 – 28 October 2009. - St Albans : Institute of Acoustics. - 1901656985
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Konferensbidrag (refereegranskat)abstract
- Sound power levels of wind turbines and consequently also the immission sound pressure levels at nearby residents vary with the wind speed. A standard meteorological situation is therefore commonly used when the immission levels are discussed; wind speed 8 m/s at 10 m height downwind. There is a need for a more comprehensive description of the sound that could be included in the Environmental Impact Assessment. The objectives of this study were to explore if it is possible to measure how often the sound is heard, and if the occurrence could be related to the standardized immission levels or the performance of the wind turbine. Twenty four people living in three wind turbine areas (A-weighted sound pressure levels 29.6 – 45.9 dB) filled in diaries for three weeks, noting when they were at home, when they were outdoors, and when they could hear sound from wind turbines. The incidents when the wind turbines were heard varied largely from 0% to 100% of the times spent outdoors. The percentage increased with increasing standardized immission levels (r = 0.56, p < 0.01). In two of the areas it was possible to get data from the nearest turbines for the study period. The sound was more easily heard at wind speeds above 5 m/s than at lower wind speeds. No indication of a decreased possibility to hear the sound when the wind increased further was found. Possibility to hear the sound was most closely related to the electrical power generation
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| 4. |
- van Kamp, Irene, et al.
(författare)
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The effects of noise disturbed sleep on children's health and cognitive development
- 2013
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Ingår i: Proceedings of ICA (International Congress of Acoustics) 2013, 2-7 June, 2013, Montréal, Canada. - : Acoustical Society of America (ASA). ; 133:5
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Undisturbed sleep is essential for physiological and psychological health. Children have a special need for uninterrupted sleep for growth and cognitive development. Noise is an environmental factor that affects most children. In addition to noise in schools and preschools, many are exposed to potentially disturbing traffic related noise at night. The knowledge of how children's health, wellbeing and cognitive development are affected by noise disturbed sleep due to road traffic is still incomplete. Nor do we know how children are able to handle noisy situations (coping) and if learned noise-related behavior in the long term has a negative influence on children's health and learning. The need for a restorative home environment can be particularly important when the child is simultaneous exposed to noise in the school environment. Moreover it has been shown that although children are less sensitive for awakenings and sleep cycle shifts due to nighttime exposure they are more sensitive for physiological effects such as blood pressure reactions and related motility during sleep. This paper reviews existing knowledge on how children's health and cognitive development are affected by noise in the home and school environment, with special focus on the importance of noise-disturbed sleep.
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| 5. |
- Waddington, David, et al.
(författare)
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Cargovibes: Human response to vibration due to freight rail trafiic
- 2015
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Ingår i: Proceedings of 22nd International Congress on Sound and Vibration, 12 - 16 July, Florence, Italy 2015. - : Informa UK Limited. ; 3:4, s. 233-48
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- The aim of this paper is to present an overview of the research concerning human response to vibration conducted in the EU FP7 CargoVibes project. The European Union funded pro-ject CargoVibes involved ten partners from eight nations and ran from April 2011 to April 2014. The project was concerned with railway-induced ground-borne vibration affecting res-idents close to freight lines, with one work package that investigated human response to vi-bration, including sleep disturbance, community annoyance, and the production of a best practice guide for evaluating response. Laboratory trials at the University of Gothenburg were used to measure the effects of vibration on sleep. Physiological and psychological im-pacts of vibration exposure were found. TNO led a meta-analysis (N = 4129) to determine exposure-response relationships for railway vibration, with existing data for community re-sponse supplemented with field studies in the Netherlands and Poland. The University of Salford led production of a guidance document that presents the state of the art regarding vi-bration measurement and assessment. Specific topics in the guide include human perception, evaluation methods, annoyance, sleep impacts, and non-exposure factors. The outcomes pre-sented in this paper represent a significant advance in the understanding of the human re-sponse to railway vibration and a step towards much needed harmonization of assessment methods.
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| 6. |
- Smith, Michael, et al.
(författare)
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Physiological effects of wind turbine noise on sleep
- 2016
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Ingår i: Proceedings of 22nd International Congress on Acoustics. Buenos Aires, 5 to 9 September, 2016.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- In accordance with the EU energy policy, wind turbines are becoming increasingly widespread throughout Europe, and this trend is expected to continue globally. More people will consequently live close to wind turbines in the future, and hence may be exposed to wind farm noise. Of particular concern is the potential for nocturnal noise to contribute towards sleep disturbance of nearby residents. To examine the issue, we are implementing a project titled Wind Turbine Noise Effects on Sleep (WiTNES). In a pilot study described in this paper, we performed an initial investigation into the particular acoustical characteristics of wind turbine noise that might have the potential to disturb sleep. Six young, healthy individuals spent 5 nights in our sound exposure laboratory. During the final 3 nights of the study, the participants were exposed to wind turbine noise, which was synthesised based on analysis of field measurements. Exposures involved periods of different amplitude modulation strengths, the presence or absence of beats, different blade rotational periods, and outdoor LAEq,8h=45 or 50 dB with indoor levels based on the windows being fully closed or slightly open. Physiological measurements indicate that nights with low frequency band amplitude modulation and LAEq,8h=45 dB, slightly open window (LAEq,8h=33 dB indoors) impacted sleep the most. The presence of beats and strong amplitude modulation contributed to sleep disturbance, reflected by more electrophysiological awakenings, increased light sleep and wakefulness, and reduced REM and deep sleep. The impact on sleep by these acoustic characteristics is currently the focus of interest in ongoing studies.
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| 7. |
- Smith, Michael, et al.
(författare)
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Wind Turbine Noise Effects on Sleep: The WiTNES study
- 2017
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Ingår i: ICBEN 2017.
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Konferensbidrag (refereegranskat)abstract
- Onshore wind turbines are becoming increasingly widespread globally, with the associated net effect that a greater number of people will be exposed to wind turbine noise (WTN). Sleep disturbance by WTN has been suggested to be of particular importance with regards to a potential impact on human health. Within the Wind Turbine Noise Effects on Sleep (WiTNES) project, we have experimentally investigated the physiological effects of night time WTN on sleep using polysomnography and self-reporting protocols. Fifty participants spent three nights in the sound exposure laboratory. To examine whether habituation or sensitisation occurs among populations with long-term WTN exposure, approximately half of the participants lived within 1km of at least one turbine. The remaining participants were not exposed to WTN at home. The first night served for habituation and one WTN-free night served to measure baseline sleep. Wind turbine noise (LAEq,indoor,night=31.9 dB) was introduced in one night. This exposure night included variations in filtering, corresponding to a window being fully closed or slightly open, and variations in amplitude modulation.
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| 8. |
- Bengtsson Ryberg, Johanna, 1974, et al.
(författare)
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Low frequency noise in a paper mill control room
- 2004
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Ingår i: The 11th International Meeting on Low Frequency Noise and Vibration and its Control, 2004 30 August-1 September, Maastricht, The Netherlands. ; , s. 15-25
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Konferensbidrag (refereegranskat)
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