Comparison of mathematical methods and measurements of traffic noise indices in pedestrian routes

In this study, we propose an analysis of the vehicular traffic noise indices and comparison between field measurements and prediction data obtained from mathematical models. The study area consists of two pedestrians routes of a medium-sized South American city. University students use these routes...

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Main Authors: Lopez, Guillermo Angel Perez, Souza, Léa Cristina Lucas de
格式: Online
语言:eng
出版: ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2019
在线阅读:https://seer.ufrgs.br/ambienteconstruido/article/view/89361
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spelling ojs-article-893612019-12-11T13:19:13Z Comparison of mathematical methods and measurements of traffic noise indices in pedestrian routes Lopez, Guillermo Angel Perez Souza, Léa Cristina Lucas de road traffic; noise map; prediction model; acoustic comfort; CRTN; NMPB In this study, we propose an analysis of the vehicular traffic noise indices and comparison between field measurements and prediction data obtained from mathematical models. The study area consists of two pedestrians routes of a medium-sized South American city. University students use these routes in displacements between their universities and residences. We monitored twenty-eight points along the two routes, performing three daytime measurements for each point. The calculated values were obtained from two mathematical predicted models: the English model CRTN (Calculation of Road Traffic Noise) and the French model NMPB-Routes (Nouvelle Methode de Prevision de Bruit). The measurements considered two noise descriptors: the A-weighted equivalent sound level (LAeq) and the noise pollution index (Lnp). The results show that the pedestrians are exposed to excessive levels of vehicle traffic noise along these routes. However, the analysis showed that the two mathematical models achieved good similarity and high performance in the prediction potential. The CRTN model has a better performance than NMPB, proving to be useful as an auxiliary tool in the monitoring of vehicle traffic noise. Finally, we used the CRTN (LAeq) predictions to generate the map of noise pollution indices. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído CAPES Universidade Federal de São Carlos 2019-12-10 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://seer.ufrgs.br/ambienteconstruido/article/view/89361 Ambiente Construído; v. 20, n. 1 (2020); 351-364 Ambiente Construído; v. 20, n. 1 (2020); 351-364 Ambiente Construído; v. 20, n. 1 (2020); 351-364 1678-8621 1415-8876 eng https://seer.ufrgs.br/ambienteconstruido/article/view/89361/55176 Direitos autorais 2019 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
Comparison of mathematical methods and measurements of traffic noise indices in pedestrian routes
author_facet Lopez, Guillermo Angel Perez
Souza, Léa Cristina Lucas de
author_sort Lopez, Guillermo Angel Perez
title Comparison of mathematical methods and measurements of traffic noise indices in pedestrian routes
title_short Comparison of mathematical methods and measurements of traffic noise indices in pedestrian routes
title_full Comparison of mathematical methods and measurements of traffic noise indices in pedestrian routes
title_fullStr Comparison of mathematical methods and measurements of traffic noise indices in pedestrian routes
title_full_unstemmed Comparison of mathematical methods and measurements of traffic noise indices in pedestrian routes
title_sort comparison of mathematical methods and measurements of traffic noise indices in pedestrian routes
description In this study, we propose an analysis of the vehicular traffic noise indices and comparison between field measurements and prediction data obtained from mathematical models. The study area consists of two pedestrians routes of a medium-sized South American city. University students use these routes in displacements between their universities and residences. We monitored twenty-eight points along the two routes, performing three daytime measurements for each point. The calculated values were obtained from two mathematical predicted models: the English model CRTN (Calculation of Road Traffic Noise) and the French model NMPB-Routes (Nouvelle Methode de Prevision de Bruit). The measurements considered two noise descriptors: the A-weighted equivalent sound level (LAeq) and the noise pollution index (Lnp). The results show that the pedestrians are exposed to excessive levels of vehicle traffic noise along these routes. However, the analysis showed that the two mathematical models achieved good similarity and high performance in the prediction potential. The CRTN model has a better performance than NMPB, proving to be useful as an auxiliary tool in the monitoring of vehicle traffic noise. Finally, we used the CRTN (LAeq) predictions to generate the map of noise pollution indices.
publisher ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
publishDate 2019
url https://seer.ufrgs.br/ambienteconstruido/article/view/89361
work_keys_str_mv AT lopezguillermoangelperez comparisonofmathematicalmethodsandmeasurementsoftrafficnoiseindicesinpedestrianroutes
AT souzaleacristinalucasde comparisonofmathematicalmethodsandmeasurementsoftrafficnoiseindicesinpedestrianroutes
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