Figure 1. Existing urban renewal project in Sham Shui Po, data source: Urban Renewal Authority, by author.

Figure 2. Existing urban renewal project in the study area, data source: Urban Renewal Authority, by author.

Figure 3. Building age: (a) Building age before recent urban renewal, data source: Hong Kong Centa Map, by the author; (b) Building age after urban renewal, data source: Urban Renewal Authority, by the author. 

Figure 4. POS in front of buildings, by the author.

Figure 5. Total Kernel density map showing social interaction density, by the author.

Figure 6. Social interaction density, (a) 10:30 a.m. – 11:00 p.m.; (b) 2:30 p.m. – 3:00 p.m.; (c) 5:30 p.m. – 6:00 p.m. Top row, day one; middle row, day two; bottom row, day three; by the author.

Table 1. Social interactions by period, gender and age.

Table 2. Pearson’s r between building age and social interaction.