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Int. J. Environ. Res. Public Health 2018, 15(1), 13; https://doi.org/10.3390/ijerph15010013

On the Impact of Anomalous Noise Events on Road Traffic Noise Mapping in Urban and Suburban Environments

GTM-Grup de recerca en Tecnologies Mèdia, La Salle-Universitat Ramon Llull, C/Quatre Camins, 30, 08022 Barcelona, Spain
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Received: 3 November 2017 / Revised: 19 December 2017 / Accepted: 21 December 2017 / Published: 23 December 2017
(This article belongs to the Section Environmental Science and Engineering)
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Abstract

Noise pollution is a critical factor affecting public health, the relationship between road traffic noise (RTN) and several diseases in urban areas being especially disturbing. The Environmental Noise Directive 2002/49/EC and the CNOSSOS-EU framework are the main instruments of the European Union to identify and combat noise pollution, requiring Member States to compose and publish noise maps and noise management action plans every five years. Nowadays, the noise maps are starting to be tailored by means of Wireless Acoustic Sensor Networks (WASN). In order to exclusively monitor the impact of RTN on the well-being of citizens through WASN-based approaches, those noise sources unrelated to RTN denoted as Anomalous Noise Events (ANEs) should be removed from the noise map generation. This paper introduces an analysis methodology considering both Signal-to-Noise Ratio (SNR) and duration of ANEs to evaluate their impact on the A-weighted equivalent RTN level calculation for different integration times. The experiments conducted on 9 h of real-life data from the WASN-based DYNAMAP project show that both individual high-impact events and aggregated medium-impact events bias significantly the equivalent noise levels of the RTN map, making any derived study about public health impact inaccurate. View Full-Text
Keywords: anomalous noise event; wireless acoustic sensor network; noise pollution; LAeq; acoustic impact; road traffic noise; noise map; health effects anomalous noise event; wireless acoustic sensor network; noise pollution; LAeq; acoustic impact; road traffic noise; noise map; health effects
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Orga, F.; Alías, F.; Alsina-Pagès, R.M. On the Impact of Anomalous Noise Events on Road Traffic Noise Mapping in Urban and Suburban Environments. Int. J. Environ. Res. Public Health 2018, 15, 13.

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