Exploring the Regional Structure of the Worldwide Air Traffic and Route Networks

Figure 10

The world air transportation network’s strength distribution (a). Dots denote empirical distribution, and lines denote estimates. The distributions under test include power law (PL), truncated power law (TPL), log-normal (LN), and stretched exponential (S-EXP). The parameters that best fit the data, as determined by the Kolmogorov–Smirnov test, are shown in bold. The strength as a function of the degree (b) of the large global component. The log-normal distribution is the best fit for the strength distribution.

(a)

(b)