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Traffic noise assessment based on mobile measurements
- Source :
- UPCommons. Portal del coneixement obert de la UPC, Universitat Politècnica de Catalunya (UPC)
- Publication Year :
- 2021
-
Abstract
- Continuous noise monitoring based on mobile systems could provide a quick feedback to assess the effect of policies implemented by authorities to mitigate noise pollution. The present research verifies that mobile measurements taken along a main street and aggregated in time and space can accurately estimate noise levels at static points. As a consequence, mobile sensors would be suitable to build, and continuously update, noise maps. Furthermore, the experiment computes the optimum aggregation distance of the mobile measurements. To perform the mobile noise measurements, a low-cost noise sensor with an integrated GPS was mounted on a bicycle. One hour worth of measurements was taken along a main avenue with the mobile receiver simultaneously to 6 static measurement points. For the mobile receiver, the LAeq was computed aggregating samples within a radius from 1 m to 100 m around the static measurement points. Then, the error between the aggregated LAeq of the mobile and the static receivers for the same time period was computed. It is observed that the RMSE and the measurement uncertainties decrease as the aggregation distance increases, having a minimum at an aggregation radius of 33 m and reaching a stabilization due to the constant traffic of the studied street. Special thanks to CONACyT for the support with the grant (260828/409838).
- Subjects :
- Desenvolupament humà i sostenible::Degradació ambiental [Àrees temàtiques de la UPC]
Ecology
Mean squared error
Computer science
business.industry
Noise pollution
Geography, Planning and Development
Real-time computing
Traffic noise
Radius
Management, Monitoring, Policy and Law
Circulació -- Mesurament -- Aparells i accessoris
Continuous noise
Noise
Noise mapping
Circulació -- Soroll
Global Positioning System
Enginyeria civil::Infraestructures i modelització dels transports::Transport urbà [Àrees temàtiques de la UPC]
business
Constant (mathematics)
Traffic noise--Measurement
Mobile sampling
Low-cost noise sensor
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- UPCommons. Portal del coneixement obert de la UPC, Universitat Politècnica de Catalunya (UPC)
- Accession number :
- edsair.doi.dedup.....22e45e2b183db8c4304fe615ed7b8f07
- Full Text :
- https://doi.org/10.1016/j.eiar.2020.106488