Figure 8.

Clusters of frequently visited locations according to the time of the day of individual activity. Dominant location clusters have primary activity during either conventional work (09.00 to 17.00 h) or rest hours according to local time. (a) Total activity in all cities at clusters whose primary activity is during conventional work hours. (b) As in (a) but for clusters whose primary activity is not during work hours (scale is shown in the figure). (c) Geographical heterogeneity (similar to Gini) coefficient of conventional work and rest hours locations.