Xuan Sharon Di
Research Interest
Balancing theory and application, Xuan (Sharon) Di studies travel behavior and transportation systems, both of which are being transformed by emerging communications and sensing technologies. Her research helps transportation planners and managers maximize efficiency and sustainability. In particular, her work on travel behavior during disrupted networks, such as after a hurricane or structural failure, contributes to the design of resilient infrastructure.
Di applies optimization, game theory, and data analytics to large data collected from various types of traffic sensors, including individual tracing devices such as GPDs. Her studies of travel behavior focus on such factors as travel demand, high-occupancy travel lanes, and the effects of ride-hailing services like Uber, as well as on the future role of connected and automated vehicles. Di is also a committee member of the Center for Smart Cities, at Columbia’s Data Science Institute.
Di received a BS in traffic engineering, summa cum laude, in 2005 and an MA in transportation information and control engineering in 2008 from Tongji University, China. She received a PhD in civil, environmental, and geo-engineering from the University of Minnesota, Twin Cities, in 2014. Di received a Chan Wui & Yunyin Rising Star Workshop Fellowship for Early Career Professionals from the Transportation Research Board in 2016. As a graduate student, she developed an interactive multi-player game, Multi-Agent Route Choice, for undergraduate transportation engineering students.
- Postdoctoral Research Fellow, University of Michigan Transportation Research Institute, 2014–2016
- Assistant Professor, Civil Engineering and Engineering Mechanics, Columbia University, 2016–
- Institute of Transportation Engineers
- Institute for Operations Research and the Management Sciences
- Women’s Transportation Seminar
- Transportation Data Analytics Contest Winner, Transportation Research Board (TRB), 2017
- Dafermos Best Paper Award Honorable Mention, TRB Network Modeling Committee, 2017
- Chan Wui & Yunyin Rising Star Workshop Fellowship for Early Career Professionals from the Transportation Research Board, 2016
- Outstanding reviewer of Transportation Research Part C, Elsevier, 2015
- ITS SIG Outstanding Presentation Award, INFORMS, 2013
- Di, X., Liu, H.X., Ban, X., Yang, H., 2017. Ridesharing User Equilibrium and Its Implications for High-Occupancy Toll Lane Pricing, Transportation Research Record, 2667, doi: 10.3141/2667-05.
- Danczyk, A., Di, X., Liu, H.X., Levinson, D.M., 2016. Unexpected versus Expected Network Disruption: Effects on Travel Behavior, Transport Policy, doi: 10.1016/j.tranpol.2017.02.002.
- Di, X., Liu, H.X., Zhu, S.J., Levinson, D.M, 2016. Indifference Band for Boundedly Rational Route Switching, Transportation, doi: 10.1007/s11116-016-9699-1, 1-26.
- Danczyk, A., Di, X., Liu, H.X., 2016. A Probabilistic Optimization Model for Allocating Freeway Sensors, Transportation Research Part C, 67, 378-398.
- Di, X., Liu, H.X., 2016. Boundedly Rational Travel Behavior: A Review of Models and Methodologies, Transportation Research Part B, 85: 142-179.
- Di, X., Liu, H.X., Ban, X., 2016. Second Best Toll Pricing Within the Framework of Bounded Rationality, Transportation Research Part B, 83: 74-90.
- Di, X., Liu, H.X., Ban, X., Yu, J.W., 2015. On the Stability of a Boundedly Rational Day-to-day Dynamic, Networks and Spatial Economics, 15 (3): 537-557.