15:30 pm
3577 - Bias due to Nonresponse in Noise Annoyance Surveys?
Heidi Bruderer Enzler, PhD | ETH Zürich | Switzerland
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Heidi Bruderer Enzler, PhD | ETH Zürich | Switzerland
Most studies on noise annoyance are based on surveys. However, typical survey response rates range between 15 and 35%. This leads to the question how this affects the results. Is there self-selection of participants that is correlated to noise exposure?
At the time of writing, we are preparing a data set that will allow looking into such questions in more detail: We are running a study on environmental justice in two major Swiss cities. The core of the study is a paper-and-pencil survey that has been sent to 4,000 randomly selected persons from the cities' population registers. We will geocode their residential addresses and link them to both spatial data on road traffic noise and to data from the official register of buildings and dwellings. Doing so will allow comparing those who responded to the survey and those who did not with regards to actual noise levels, properties of the buildings and apartments they live in as well as nationality, country of birth, age, gender and duration of their residency.
15:45 pm
3792 - Secondary analysis of social survey on community response to transportation vibration in Japan
Shigenori Yokoshima, PD Dr. | Knagawa Environmental Research Center | Japan
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Authors:
Shigenori Yokoshima, PD Dr. | Knagawa Environmental Research Center | Japan
Takashi Morihara, PhD | National Institute of Technology, Ishikawa College | Switzerland
Yasuyuki Sano, PhD | Aichi Institute of Technology | Japan
Yasunao Matsumoto, Prof. Dr. | Saitama University | Switzerland
Vibration Regulation Law in Japan has controlled vertical ground vibration caused by factory, construction work and road traffic. In addition, countermeasures for ground vibration from Shinkansen super-express railway was recommended. In the law and recommendation, regulatory and guideline values are established, respectively. Enforcement of the law and recommendation has brought about reduction in ground vibrations; however, most of recent complaints due to vibrations are generated at sites below the values. This suggests that the values don’t work as criterion for preserving living environment. For the purpose of providing fundamental data for the revision of vibration policy, we made secondary analysis and showed the relationship between maximum-based vibration level and annoyance associated with transportation vibration at ICBEN2014. In this paper, energy-based vibration level as vibration exposure and perception and rattling as community response are added into the analysis. One purpose of this study is to clarify whether maximum-based or energy-based index is better to measure consistent dose-response relationship associated with transportation vibration. The second is to examine the degree of effect of noise on community response to transportation vibration.
16:00 pm
3809 - A review of the human exposure-response to amplitude-modulated wind turbine noise: health effects, influences on community annoyance, methods of control and mitigation
Michael Lotinga | WSP | Parsons Brinckerhoff | United Kingdom
Richard Perkins | WSP | Parsons Brinckerhoff | United Kingdom
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Authors:
Michael Lotinga | WSP | Parsons Brinckerhoff | United Kingdom
Richard Perkins | WSP | Parsons Brinckerhoff | United Kingdom
Bernard Berry | Berry Environmental Ltd | United Kingdom
Colin Grimwood | CJG Environmental Management | Switzerland
Stephen Stansfeld, Prof. | Queen Mary University of London | United Kingdom
WSP | Parsons Brinckerhoff led a research project on behalf of the UK Government, reviewing the human exposure-response to amplitude-modulated (AM) wind turbine noise (WTN). The review included identifying the potential effects on health, and recommendation of a scheme for use in development planning to control the potential impact of AM WTN on communities situated near to wind farms. This paper focuses on the findings of the review, including effects on community annoyance and health, with reference to the results of recent field studies. The control scheme for AM is described, and emerging measures for mitigation are discussed. Also examined is the range of non-acoustic factors that influence responses to WTN, and potential future approaches to addressing these complex issues are considered.
16:15 pm
4059 - Noise annoyance caused by large wind turbines – a dose-response relationship
Valtteri Hongisto, PhD | Turku University of Applied Sciences | Switzerland
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Valtteri Hongisto, PhD | Turku University of Applied Sciences | Switzerland
David Oliva | Turku University of Applied Sciences | Finland
The purpose was to determine a dose-response-relationship of large wind turbines with nominal power of 3-5 MW. A cross-sectional survey was conducted around three wind farms in Finland. The sample involved all households within 2 km from the nearest turbine. Altogether 429 households out of 753 responded to the questionnaire or participated in the interview. The dose-response relationship was determined between the predicted noise exposure level LAeq outdoors and the perceived noise annoyance indoors. The dose-response relationship was in rather good agreement with previous studies obtained for significantly smaller turbines (0.15-3.0 MW). It seems that the size of wind turbines is not affecting the annoyance of wind turbine noise.