Fig. 2: Distribution of stranded passengers in the Beijing subway system on October 16, 2020, based on identified trip chains.
From: Phase transition-like behaviors of propagation of passenger stranding phenomena in subway networks
a–d The distribution of stranded passengers during the time periods 8:00–8:15, 12:00–12:15, 18:00–18:15, and 22:00–22:15, respectively.
