Noise impact caused by electrical energy substations in the city of Curitiba, Brazil

This survey is intended to characterize the noise impact due to electrical energy substations in the city of Curitiba over the population living in their vicinity. This impact has been studied with the aid of a computational tool capable of mapping the acoustical field of substations and their vicin...

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Bibliographic Details
Published in:The Science of the total environment 2004-07, Vol.328 (1), p.23-31
Main Authors: Diniz, F.B, Zannin, P.H.T
Format: Article
Language:English
Subjects:
Acoustical mapping
Acoustics
Brazil
Cities
Electrical energy substation
Environment
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Geography
Noise
Noise: its effects and control
Physics
Power Plants
Sound Spectrography
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Summary:This survey is intended to characterize the noise impact due to electrical energy substations in the city of Curitiba over the population living in their vicinity. This impact has been studied with the aid of a computational tool capable of mapping the acoustical field of substations and their vicinity. Several factors have been considered in this survey: (1) sound power of the transformers; (2) vehicle flow on the surrounding roads; (3) positioning of the firewalls, buildings and walls; and (4) terrain topography. Four substations have been analyzed, and an acoustical map has been traced for each of them. With these maps it was possible to visualize what was the incident noise level on the building facades. The predicted noise levels have been compared to the environmental legislation of the noise emissions in effect in the city.
ISSN:0048-9697
1879-1026
DOI:10.1016/j.scitotenv.2004.02.007