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Capturing the spatial and temporal variability of urban noise: do low-cost sensors offer a step towards higher resolution noise monitoring?

Capturing the spatial and temporal variability of urban noise: do low-cost sensors offer a step towards higher resolution noise monitoring?
Capturing the spatial and temporal variability of urban noise: do low-cost sensors offer a step towards higher resolution noise monitoring?
Populations are being exposed to environmental noise at levels that impact on both mental and physical health, with knock-on effects on productivity and economic performance. Current assessments of exposure are often based on noise levels at building façades, derived from sound propagation models and are usually limited to long-term average noise levels for periods of the day, night or over 24 hours (e.g. Lden). There is a particular lack of information on variations in noise throughout the diurnal cycle and over long time periods. In this study, we deployed 14 low-cost recorders to gather high resolution data on urban noise levels and compared results with those from a conventional noise propagation algorithm. Daily LAeq and diurnal variations in hourly LAeq showed considerable variation in space and time with the middle of the day generally noisiest. Some of
these patterns were well captured by the propagation model although it tended to underestimate noise levels from all sources. Although more work is needed, we suggest that well-placed sensors have the potential to enhance exposure assessments e.g. on minor roads and where traffic is not the major noise source
1138-1145
Sociedade Portuguesa de Acústica
Alvares-Sanches, Tatiana
c2aea5a3-a67c-41dd-9e1c-b9fb5a29775b
Osborne, Patrick E.
c4d4261d-557c-4179-a24e-cdd7a98fb2b8
White, Paul
2dd2477b-5aa9-42e2-9d19-0806d994eaba
Jephcote, Calvin
a9524901-e6e0-4d7d-b1ff-a5d4f2355a79
Gulliver, John
131defba-88e9-45ad-8c5f-e2a7848d8df3
Alvares-Sanches, Tatiana
c2aea5a3-a67c-41dd-9e1c-b9fb5a29775b
Osborne, Patrick E.
c4d4261d-557c-4179-a24e-cdd7a98fb2b8
White, Paul
2dd2477b-5aa9-42e2-9d19-0806d994eaba
Jephcote, Calvin
a9524901-e6e0-4d7d-b1ff-a5d4f2355a79
Gulliver, John
131defba-88e9-45ad-8c5f-e2a7848d8df3

Alvares-Sanches, Tatiana, Osborne, Patrick E., White, Paul, Jephcote, Calvin and Gulliver, John (2021) Capturing the spatial and temporal variability of urban noise: do low-cost sensors offer a step towards higher resolution noise monitoring? In Proceedings E-Congress: Euronoise 2021. Sociedade Portuguesa de Acústica. pp. 1138-1145 .

Record type: Conference or Workshop Item (Paper)

Abstract

Populations are being exposed to environmental noise at levels that impact on both mental and physical health, with knock-on effects on productivity and economic performance. Current assessments of exposure are often based on noise levels at building façades, derived from sound propagation models and are usually limited to long-term average noise levels for periods of the day, night or over 24 hours (e.g. Lden). There is a particular lack of information on variations in noise throughout the diurnal cycle and over long time periods. In this study, we deployed 14 low-cost recorders to gather high resolution data on urban noise levels and compared results with those from a conventional noise propagation algorithm. Daily LAeq and diurnal variations in hourly LAeq showed considerable variation in space and time with the middle of the day generally noisiest. Some of
these patterns were well captured by the propagation model although it tended to underestimate noise levels from all sources. Although more work is needed, we suggest that well-placed sensors have the potential to enhance exposure assessments e.g. on minor roads and where traffic is not the major noise source

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Alvares-Sanches Euronoise2021
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Published date: 25 October 2021

Identifiers

Local EPrints ID: 452193
URI: http://eprints.soton.ac.uk/id/eprint/452193
PURE UUID: 25488261-73d5-462a-8996-1f9041c81892
ORCID for Patrick E. Osborne: ORCID iD orcid.org/0000-0001-8919-5710
ORCID for Paul White: ORCID iD orcid.org/0000-0002-4787-8713

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Date deposited: 29 Nov 2021 17:32
Last modified: 12 Jul 2024 01:42

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Contributors

Author: Tatiana Alvares-Sanches
Author: Paul White ORCID iD
Author: Calvin Jephcote
Author: John Gulliver

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