| A study of riders' noise exposure on Bay Area Rapid Transit trains. | |
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MedLine Citation:
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PMID: 21225356 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Excessive noise exposure may present a hazard to hearing, cardiovascular, and psychosomatic health. Mass transit systems, such as the Bay Area Rapid Transit (BART) system, are potential sources of excessive noise. The purpose of this study was to characterize transit noise and riders' exposure to noise on the BART system using three dosimetry metrics. We made 268 dosimetry measurements on a convenience sample of 51 line segments. Dosimetry measures were modeled using linear and nonlinear multiple regression as functions of average velocity, tunnel enclosure, flooring, and wet weather conditions and presented visually on a map of the BART system. This study provides evidence of levels of hazardous levels of noise exposure in all three dosimetry metrics. L(eq) and L(max) measures indicate exposures well above ranges associated with increased cardiovascular and psychosomatic health risks in the published literature. L(peak) indicate acute exposures hazardous to adult hearing on about 1% of line segment rides and acute exposures hazardous to child hearing on about 2% of such rides. The noise to which passengers are exposed may be due to train-specific conditions (velocity and flooring), but also to rail conditions (velocity and tunnels). These findings may point at possible remediation (revised speed limits on longer segments and those segments enclosed by tunnels). The findings also suggest that specific rail segments could be improved for noise. |
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Authors:
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Alexis Dinno; Cynthia Powell; Margaret Mary King |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of urban health : bulletin of the New York Academy of Medicine Volume: 88 ISSN: 1468-2869 ISO Abbreviation: J Urban Health Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2011-02-21 Completed Date: 2011-06-24 Revised Date: 2012-02-01 |
Medline Journal Info:
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Nlm Unique ID: 9809909 Medline TA: J Urban Health Country: United States |
Other Details:
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Languages: eng Pagination: 1-13 Citation Subset: IM |
Affiliation:
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School of Community Health, Portland State University, 506 SW Mill St., Suite 450, Portland, OR 97201, USA. alexis.dinno@pdx.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adaptation, Psychological California Cardiovascular System Environmental Exposure / adverse effects* Health Status Humans Hypertension / psychology Multivariate Analysis Noise / adverse effects* Railroads* Risk Assessment Stress, Psychological / complications*, psychology Time Factors |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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