Temporal and spatial variability of traffic-related noise in the City of Toronto, Canada

The Science of the Total Environment
Fei ZuoHong Chen

Abstract

The majority of studies that assessed population-level exposure to traffic-related noise were conducted in European countries and less is known about the exposure to traffic noise in North America, particularly in Canadian cities. This study explored the temporal and spatial variability of traffic noise in the City of Toronto, the largest city in Canada. We conducted two cycles of intensive field measurement campaign to collect real-time measurements of traffic noise at 554 locations across Toronto between June 2012 and January 2013. At each site, we collected measurements for a period of 30 min during daytime. Repeated measurements were made in cycle two at 62 locations randomly selected from cycle one, which exhibited high correlation (Pearson's correlation coefficient (r): 0.79). In addition, continuous measurements of noise were recorded for seven days at ten sites. We observed that noise variability was predominantly spatial in nature, rather than temporal: spatial variability accounted for 60% of the total observed variations in traffic noise. Traffic volume, length of arterial road, and industrial area were three most important variables, explaining the majority of the spatial variability of noise (R(2)=0.68 to 0.74, dep...Continue Reading

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Jan 6, 2016·International Journal of Environmental Research and Public Health·Martina S RagettliAudrey Smargiassi
Oct 18, 2016·Journal of Exposure Science & Environmental Epidemiology·Martina S RagettliAudrey Smargiassi
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