Urban green spaces and the influence on vehicular traffic noise control

In this paper, we explore a statistical relationship between green areas and traffic-related vehicle noise. A medium-sized Brazilian city was selected as the sampling area. This area was divided into 25 subareas and for each subarea a group of descriptors was developed. The parameters considered wer...

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Main Authors:	Lopez, Guillermo Angel Perez, Souza, Léa Cristina Lucas de
Format:	Online
Language:	eng
Published:	ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2018
Online Access:	https://seer.ufrgs.br/ambienteconstruido/article/view/78088
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id	ojs-article-78088
record_format	ojs
spelling	ojs-article-780882019-01-08T18:43:53Z Urban green spaces and the influence on vehicular traffic noise control Lopez, Guillermo Angel Perez Souza, Léa Cristina Lucas de Urban green spaces; Noise descriptors; Noise traffic; Acoustic comfort; Satellite images; Images processing In this paper, we explore a statistical relationship between green areas and traffic-related vehicle noise. A medium-sized Brazilian city was selected as the sampling area. This area was divided into 25 subareas and for each subarea a group of descriptors was developed. The parameters considered were the areas occupied by green spaces and the noise pollution index generated by vehicular traffic during day and night periods. The green areas were quantified by digital processing of satellite images. The vehicular traffic noise was measured directly at the site and analysed by the noise pollution index (Lnp), the equivalent sound level (LAeq) and the day/night sound level (Ldn). In order to establish the statistical relationship between noise descriptors and green areas, Pearson's linear correlation coefficient (r) was used. Two analysis types were developed: a generalised one, including the 25 subareas; and a specific one, classifying the subareas into clusters. The first analysis indicated a trend to a medium negative correlation between green areas and noise pollution day index (Lnpd), noise pollution night index (Lnpn) and Ldn (r= -0.577, -0.484, -0.373). In the second analysis, the subarea cluster 3 is considered, which includes areas with clinics and educational institutions. This correlation was classified as high negative (r= -0.729, -0.721, -0.541). The results show indexes with high negative correlation, statistically meaning that there is an inverse proportional relationship between green areas and noise pollution. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído Coordination for the Improvement of Higher Education Personnel (CAPES) 2018-10-16 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://seer.ufrgs.br/ambienteconstruido/article/view/78088 Ambiente Construído; v. 18, n. 4 (2018): Edição especial sobre a Cal na Construção - V Jornadas Fical; 161-175 Ambiente Construído; v. 18, n. 4 (2018): Edição especial sobre a Cal na Construção - V Jornadas Fical; 161-175 Ambiente Construído; v. 18, n. 4 (2018): Edição especial sobre a Cal na Construção - V Jornadas Fical; 161-175 1678-8621 1415-8876 eng https://seer.ufrgs.br/ambienteconstruido/article/view/78088/50106 Direitos autorais 2018 Ambiente Construído https://creativecommons.org/licenses/by/4.0
institution	Universidade Federal do Rio Grande do Sul
collection	OJS
language	eng
format	Online
author	Lopez, Guillermo Angel Perez Souza, Léa Cristina Lucas de
spellingShingle	Lopez, Guillermo Angel Perez Souza, Léa Cristina Lucas de Urban green spaces and the influence on vehicular traffic noise control
author_facet	Lopez, Guillermo Angel Perez Souza, Léa Cristina Lucas de
author_sort	Lopez, Guillermo Angel Perez
title	Urban green spaces and the influence on vehicular traffic noise control
title_short	Urban green spaces and the influence on vehicular traffic noise control
title_full	Urban green spaces and the influence on vehicular traffic noise control
title_fullStr	Urban green spaces and the influence on vehicular traffic noise control
title_full_unstemmed	Urban green spaces and the influence on vehicular traffic noise control
title_sort	urban green spaces and the influence on vehicular traffic noise control
description	In this paper, we explore a statistical relationship between green areas and traffic-related vehicle noise. A medium-sized Brazilian city was selected as the sampling area. This area was divided into 25 subareas and for each subarea a group of descriptors was developed. The parameters considered were the areas occupied by green spaces and the noise pollution index generated by vehicular traffic during day and night periods. The green areas were quantified by digital processing of satellite images. The vehicular traffic noise was measured directly at the site and analysed by the noise pollution index (Lnp), the equivalent sound level (LAeq) and the day/night sound level (Ldn). In order to establish the statistical relationship between noise descriptors and green areas, Pearson's linear correlation coefficient (r) was used. Two analysis types were developed: a generalised one, including the 25 subareas; and a specific one, classifying the subareas into clusters. The first analysis indicated a trend to a medium negative correlation between green areas and noise pollution day index (Lnpd), noise pollution night index (Lnpn) and Ldn (r= -0.577, -0.484, -0.373). In the second analysis, the subarea cluster 3 is considered, which includes areas with clinics and educational institutions. This correlation was classified as high negative (r= -0.729, -0.721, -0.541). The results show indexes with high negative correlation, statistically meaning that there is an inverse proportional relationship between green areas and noise pollution.
publisher	ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
publishDate	2018
url	https://seer.ufrgs.br/ambienteconstruido/article/view/78088
work_keys_str_mv	AT lopezguillermoangelperez urbangreenspacesandtheinfluenceonvehiculartrafficnoisecontrol AT souzaleacristinalucasde urbangreenspacesandtheinfluenceonvehiculartrafficnoisecontrol
_version_	1709370646219194368

Urban green spaces and the influence on vehicular traffic noise control

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