Fig 1.
University District of Milano-Bicocca.
The route is shown in blue, the stopping sites (1–7) in black, and the direction participants were asked to face during the recording and questionnaire completion is indicated in red.Basemap OpenStreetMap contributors (ODbL, https://www.openstreetmap.org/copyright). Map created with QGIS 3.38 Firenze.
Table 1.
Mean and standard deviation of each psychoacoustic indices for each site.
Fig 2.
Boxplot of each psychoacoustic indices by site.
Fig 3.
Pairwise test between Psychoacoustic indices and the different sites of the soundwalk (Dunn test with Bonferroni correction).
Significance levels are color-coded as follows: red for p < 0.001 (***), orange for p < 0.01 (**), green for p < 0.05 (*), and gray for non-significant differences (ns).
Fig 4.
Spectral analysis of A-weighted spectral levels in the one-third octave bands frequency for each soundwalk and by site.
Fig 5.
Mean one-third octave band spectra calculated for each site by averaging across all soundwalk sessions.
Fig 6.
Dendrogram of cluster analysis between psychoacoustic measurements and sites.
Each colour indicates a cluster (a–d).
Fig 7.
Circumplex Model of the sensations described by the participants in the seven sites.
Ellipses represent data-driven 95% confidence regions for each site, computed from the empirical distribution of ISO Pleasant and ISO Eventful ratings (R, stat_ellipse, type = ‘t’).
Fig 8.
Map of the perceived sound sources per site (1-Piazza dell’Ateneo Nuovo, 2-Piazzetta Difesa per le Donne, 3-Piazza della Trivulziana, 4-Parco Sarca, 5-Intersection, 6-Collina dei Ciliegi, 7-Piazza della Scienza.
Source: our elaboration of survey data. Basemap OpenStreetMap contributors (ODbL, https://www.openstreetmap.org/copyright). Map created with QGIS 3.38 Firenze.
Table 2.
Summary of the main data from the results divided by site.
Full data is avaiable in SI3.