WASN-Based Day–Night Characterization of Urban Anomalous Noise Events in Narrow and Wide Streets

In addition to air pollution, environmental noise has become one of the major hazards for citizens, being Road Traffic Noise (RTN) as its main source in urban areas. Recently, low-cost Wireless Acoustic Sensor Networks (WASNs) have become an alternative to traditional strategic noise mapping in citi...

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Autores: Alías-Pujol, Francesc, Socoró, Joan Claudi, Alsina-Pagès, Rosa Ma
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:20.500.14342/3064
Acceso en línea:http://hdl.handle.net/20.500.14342/3064
https://doi.org/10.3390/s20174760
Access Level:acceso abierto
Palabra clave:Soroll -- Control
Soroll urbà
531/534
62
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spelling WASN-Based Day–Night Characterization of Urban Anomalous Noise Events in Narrow and Wide StreetsAlías-Pujol, FrancescSocoró, Joan ClaudiAlsina-Pagès, Rosa MaSoroll -- ControlSoroll urbà531/53462In addition to air pollution, environmental noise has become one of the major hazards for citizens, being Road Traffic Noise (RTN) as its main source in urban areas. Recently, low-cost Wireless Acoustic Sensor Networks (WASNs) have become an alternative to traditional strategic noise mapping in cities. In order to monitor RTN solely, WASN-based approaches should automatize the off-line removal of those events unrelated to regular road traffic (e.g., sirens, airplanes, trams, etc.). Within the LIFE DYNAMAP project, 15 urban Anomalous Noise Events (ANEs) were described through an expert-based recording campaign. However, that work only focused on the overall analysis of the events gathered during non-sequential diurnal periods. As a step forward to characterize the temporal and local particularities of urban ANEs in real acoustic environments, this work analyses their distribution between day (06:00–22:00) and night (22:00–06:00) in narrow (1 lane) and wide (more than 1 lane) streets. The study is developed on a manually-labelled 151-h acoustic database obtained from the 24-nodes WASN deployed across DYNAMAP’s Milan pilot area during a weekday and a weekend day. Results confirm the unbalanced nature of the problem (RTN represents 83.5% of the data), while identifying 26 ANE subcategories mainly derived from pedestrians, animals, transports and industry. Their presence depends more significantly on the time period than on the street type, as most events have been observed in the day-time during the weekday, despite being especially present in narrow streets. Moreover, although ANEs show quite similar median durations regardless of time and location in general terms, they usually present higher median signal-to-noise ratios at night, mainly on the weekend, which becomes especially relevant for the WASN-based computation of equivalent RTN levelsMDPIUniversitat Ramon Llull. La Salle2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion26 p.http://hdl.handle.net/20.500.14342/3064https://doi.org/10.3390/s20174760reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésSensors, 2020, Vol. 20 No 17info:eu-repo/grantAgreement/EC/LIFE/LIFE13 ENV-IT-001254info:eu-repo/grantAgreement/URL i SUR del DEC/Projectes recerca PDI/2020-URL-Proj-053© L'autor/aAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:20.500.14342/30642026-05-29T05:05:01Z
dc.title.none.fl_str_mv WASN-Based Day–Night Characterization of Urban Anomalous Noise Events in Narrow and Wide Streets
title WASN-Based Day–Night Characterization of Urban Anomalous Noise Events in Narrow and Wide Streets
spellingShingle WASN-Based Day–Night Characterization of Urban Anomalous Noise Events in Narrow and Wide Streets
Alías-Pujol, Francesc
Soroll -- Control
Soroll urbà
531/534
62
title_short WASN-Based Day–Night Characterization of Urban Anomalous Noise Events in Narrow and Wide Streets
title_full WASN-Based Day–Night Characterization of Urban Anomalous Noise Events in Narrow and Wide Streets
title_fullStr WASN-Based Day–Night Characterization of Urban Anomalous Noise Events in Narrow and Wide Streets
title_full_unstemmed WASN-Based Day–Night Characterization of Urban Anomalous Noise Events in Narrow and Wide Streets
title_sort WASN-Based Day–Night Characterization of Urban Anomalous Noise Events in Narrow and Wide Streets
dc.creator.none.fl_str_mv Alías-Pujol, Francesc
Socoró, Joan Claudi
Alsina-Pagès, Rosa Ma
author Alías-Pujol, Francesc
author_facet Alías-Pujol, Francesc
Socoró, Joan Claudi
Alsina-Pagès, Rosa Ma
author_role author
author2 Socoró, Joan Claudi
Alsina-Pagès, Rosa Ma
author2_role author
author
dc.contributor.none.fl_str_mv Universitat Ramon Llull. La Salle
dc.subject.none.fl_str_mv Soroll -- Control
Soroll urbà
531/534
62
topic Soroll -- Control
Soroll urbà
531/534
62
description In addition to air pollution, environmental noise has become one of the major hazards for citizens, being Road Traffic Noise (RTN) as its main source in urban areas. Recently, low-cost Wireless Acoustic Sensor Networks (WASNs) have become an alternative to traditional strategic noise mapping in cities. In order to monitor RTN solely, WASN-based approaches should automatize the off-line removal of those events unrelated to regular road traffic (e.g., sirens, airplanes, trams, etc.). Within the LIFE DYNAMAP project, 15 urban Anomalous Noise Events (ANEs) were described through an expert-based recording campaign. However, that work only focused on the overall analysis of the events gathered during non-sequential diurnal periods. As a step forward to characterize the temporal and local particularities of urban ANEs in real acoustic environments, this work analyses their distribution between day (06:00–22:00) and night (22:00–06:00) in narrow (1 lane) and wide (more than 1 lane) streets. The study is developed on a manually-labelled 151-h acoustic database obtained from the 24-nodes WASN deployed across DYNAMAP’s Milan pilot area during a weekday and a weekend day. Results confirm the unbalanced nature of the problem (RTN represents 83.5% of the data), while identifying 26 ANE subcategories mainly derived from pedestrians, animals, transports and industry. Their presence depends more significantly on the time period than on the street type, as most events have been observed in the day-time during the weekday, despite being especially present in narrow streets. Moreover, although ANEs show quite similar median durations regardless of time and location in general terms, they usually present higher median signal-to-noise ratios at night, mainly on the weekend, which becomes especially relevant for the WASN-based computation of equivalent RTN levels
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.14342/3064
https://doi.org/10.3390/s20174760
url http://hdl.handle.net/20.500.14342/3064
https://doi.org/10.3390/s20174760
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Sensors, 2020, Vol. 20 No 17
info:eu-repo/grantAgreement/EC/LIFE/LIFE13 ENV-IT-001254
info:eu-repo/grantAgreement/URL i SUR del DEC/Projectes recerca PDI/2020-URL-Proj-053
dc.rights.none.fl_str_mv © L'autor/a
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv © L'autor/a
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 26 p.
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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