Michael Zhang

The Underground on 140 Characters or Less ∗

V. Paxson, Kurt Thomas, Chris Grier, 2010 .

Understanding multiple days’ metro travel demand at aggregate level

Dongyuan Yang, Haifeng Li, Zhengyu Duan, 2019, IET Intelligent Transport Systems.

Understanding evacuation and impact of a metro collision on ridership using large-scale mobile phone data

Jian Li, Michael Zhang, Zhengyu Duan, 2017 .