Structural and robustness properties of smart-city transportation networks
Zhang Zhen-Ganga), Ding Zhuoa), Fan Jing-Fangb),c), Meng Jun†c), Ding Yi-Mind), Ye Fang-Fuc), Chen Xiao-Song‡b)
       
Illustration of the complementary networks of Beijing city (a) and Guangzhou city (b). There are 6704 stations and 1337 lines for Beijing, and 6654 stations and 1450 lines for Guangzhou.