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The Influence of Crowd Density on the Sound Environment of Commercial Pedestrian Streets

Meng, Q; Kang, J; (2015) The Influence of Crowd Density on the Sound Environment of Commercial Pedestrian Streets. Science of the Total Environment , 511 pp. 249-258. 10.1016/j.scitotenv.2014.12.060. Green open access

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Abstract

Commercial pedestrian streets are very common in China and Europe, with many situated in historic or cultural centres. The environments of these streets are important, including their sound environments. The objective of this study is to explore the relationships between the crowd density and the sound environments of commercial pedestrian streets. On-site measurements were performed at the case study site in Harbin, China, and a questionnaire was administered. The sound pressure measurements showed that the crowd density has an insignificant effect on sound pressure below 0.05 persons/m2, whereas when the crowd density is greater than 0.05 persons/m2, the sound pressure increases with crowd density. The sound sources were analysed, showing that several typical sound sources, such as traffic noise, can be masked by the sounds resulting from dense crowds. The acoustic analysis showed that crowd densities outside the range of 0.10 to 0.25 persons/m2 exhibited lower acoustic comfort evaluation scores. In terms of audiovisual characteristics, the subjective loudness increases with greater crowd density, while the acoustic comfort decreases. The results for an indoor underground shopping street are also presented for comparison.

Type: Article
Title: The Influence of Crowd Density on the Sound Environment of Commercial Pedestrian Streets
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.scitotenv.2014.12.060
Publisher version: https://doi.org/10.1016/j.scitotenv.2014.12.060
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Crowd density, Commercial pedestrian street, Subjective loudness, Acoustic comfort, Audiovisual interaction
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources
URI: https://discovery.ucl.ac.uk/id/eprint/10058518
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