Fig. 3: Distribution of jam tree costs in urban traffic.
From: Unveiling city jam-prints of urban traffic based on jam patterns
The distribution of jam costs associated with a given trunk in a typical working day for all trunks in a Beijing and b Shenzhen. Results for other working days are similar and can be seen in Supplementary Fig. S3 (Beijing) and Supplementary Fig. S4 (Shenzhen) in the Supplementary Information. Probability density function of the jam cost exponent β for 17 working days for c Beijing and d Shenzhen. We also apply the two-sample Kolmogorov–Smirnov test (KS test) to evaluate if the distributions of daily exponents in two cities are indeed different and obtain a p-value of nearly 0 (i.e., 3 ×10−8), which is much lower than the common accepted significance threshold of 0.05.
