Zhen Liu is a Research Assistant Professor at the Institute of Space and Earth Information Science, the Chinese University of Hong Kong, Shatin, Hong Kong. He earned a Ph.D. in Transportation Engineering at Southeast University in 2023. From 2021 to 2024, he served as a Graduate Assistant at Southeast University, Nanjing, China. From 2024 to 2025, he was a Postdoctoral Research Fellow at the Larson Transportation Institute, Pennsylvania State University, University Park, PA, USA. He is a Member of the ASCE Foundation. His research focuses on multisource monitoring and assessment technologies, AI-based data interpretation, and sustainable management for transportation infrastructure.