Fig. 5
From: Universal scaling of human flow remain unchanged during the COVID-19 pandemic
The structure of basins during COVID-19 pandemic. a, The size of the basin increases is proportional to the diameter to the 1.5th power. The definition of diameter is the maximum distance between two points in the basin, see reference (Shida et al. 2020). b, The number of moving people in the basin is proportional to the cube of the diameter. c, Based on the square with the highest density of moving people in the basin, the number of moving people decreases with distance to the power of \(-0.5\)