Spatial categorization of urban sound environments based on mobile measurements
Regular paper
LUNAM Université, Ifsttar, LAE
Tuesday 2 june, 2015, 18:00 - 18:20
0.3 Copenhagen (49)
Abstract:
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.