Spatial categorization of urban sound environments based on mobile measurements

Regular paper

Arnaud Can

LUNAM Université, Ifsttar, LAE

Tuesday 2 june, 2015, 18:00 - 18:20

0.3 Copenhagen (49)

Urban sound environments vary strongly and continuously both in space and time. Moreover, they cannot be described only quantitatively, as their temporal and spectral content has a demonstrated perceptive impact. In this paper, the potential of mobile measurements to categorize spatially urban sound environments is investigated. Analysis are based on a 3 days + 1 night survey where geo-referenced noise measurements where collected over 19 1h-soundwalks periods, on three different districts. The clustering analysis showed that a limited subset of indicators is sufficient to discriminate sound environments for each district. Interestingly, the same indicators emerge for one district to the other. Finally, the procedure proposed enables the description of the sound environment of each district, which is classified into homogenous sound environment classes, by means of the selected indicators.

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