Overview
Emerging technologies, for example, connected and automated vehicles, are reshaping the landscape of mobility systems. Large uncertainty exists on how this new landscape will be like. This uncertainty poses a series of fundamental science, engineering, and policy questions challenging transportation researchers, practitioners, and policymakers. We develop analytical and computational tools to answer these questions and to build efficient, equitable, sustainable, and resilient mobility systems with emerging technologies. Our work focuses on three areas: technology (T), system (S), and impacts (I).
Projects
Safe, reliable, accessible, and affordable technologies are the foundation for society to realize the putative benefits of connected and automated mobility. We integrate modeling (optimization models, control algorithms, learning methods) and experimentation (robot cars, full-scale vehicles) to advance emerging vehicle technologies.

Trajectory Control

Online learning-based model predictive controller for CAVs

Trajectory Planning

Optimal vehicle trajectory planning at signalized intersections in mixed traffic

Lane Changing

Cooperative lane changing with assistance from preceding vehicles

Emerging technologies are challenging existing paradigms in mobility system planning, design, management, and operation by introducing complex system dynamics. Efficient and accurate modeling of these dynamics is a prerequisite for deriving solutions to these challenges. We draw on theories and methods from optimization and machine learning to model, analyze, and optimize next-generation mobility systems.

MAV Systems

Designing MAV systems with discrete and continuous modeling

Customized Bus

Planning customized bus networks with transfer and passenger assignment

E-bike Sharing

Planning e-bike sharing station network with bi-level programming

Emerging mobility technologies are expected to bring substantial impacts to society, but it remains inconclusive what these impacts will be. For example, how will connected and automated vehicles affect different population groups? We combine theories from social science, simulation, and data analytics to unravel the social impacts of emerging mobility systems .

Transportation Equity Data

Compiling big data sources for transportation equity analysis in the U.S.

AV Equity

Predicting distributional equity impacts of AVs in access, mobility, and affordability

Bike-sharing Equity

Using indidividual-level trip itineraries to analyze bike-sharing equity