Fig. 4: The relationship between the average commuting distance and city size.
From: Unravelling the spatial directionality of urban mobility
a–c Average commuting distance versus urban area size for a strong monocentric cities, b weak monocentric cities and c polycentric cities. The solid line indicates a logarithmic function fit (\(D \sim \log {A}^{a}\)) for which the parameter is provided in each panel. d–f Average commuting distance versus urban population size for d strong monocentric cities, e weak monocentric cities and f polycentric cities. The solid line indicates a logarithmic function fit (\(D \sim \log {N}^{b}\)) for which the parameter is provided in each panel. A linear regression t-test was conducted to determine whether the slope of the regression line differed significantly from zero. Source data are provided as a Source Data file.
