P2
Understanding the Persistence of Car Dependence and Its Social Impacts
Viewing car dependence as a socially and institutionally constructed phenomenon, I examine why it persists and how it shapes social outcomes. In addition to my research on aging and transportation, I investigate the mechanisms through which car-dependent development reinforces social inequalities and limits opportunities for different populations. This line of research examines topics such as the relationship between car dependence and employment outcomes, as well as the implications of car-dependent environments for policing justice. I also investigate how local governments balance economic development, climate action, and mobility goals, and how political institutions and local economic structures can reinforce car-dependent development and constrain transportation transitions.
Taken together, this line of research provides empirical evidence on why many cities, communities, and social groups remain highly dependent on private vehicles, and why transitioning away from car dependence is particularly challenging for many local governments, especially those with limited institutional and financial capacity.

Selected publications
* student co-author
2026
Racial Segregation, Transportation, and Employment Outcomes in the United States
Li, Shengxiao (Alex), Richard Patti, and Yuxi Xiong* · Transport Policy 176 (February), 103920
2025
Understanding the Role of the Built and Social Environments in Outcomes of Stops by Police in San Diego, California
Li, Shengxiao (Alex), Ran Wei, Danielle Wallace, Tony Grubesic, and Xiaoyue Cathy Liu · Journal of Urban Affairs
2022
Examining Commuting Disparities across Different Types of New Towns and Different Income Groups: Evidence from Beijing, China
Li, Shengxiao (Alex), and Pengjun Zhao · Habitat International 124 (June): 102558
2022
Who Loses and Who Wins in the Ride-Hailing Era? A Case Study of Austin, Texas
Li, Shengxiao (Alex), Wei Zhai, Junfeng Jiao, and Chao (Kenneth) Wang* · Transport Policy 120 (May): 130–38
2022
How Do Constrained Car Ownership and Car Use Influence Travel and Life Satisfaction?
Li, Shengxiao (Alex), Xiaodong Guan, and Donggen Wang · Transportation Research Part A: Policy and Practice 155 (January): 202–18
2022
How Do Low-Income Commuters Get to Work in US and Mexican Cities? A Comparative Empirical Assessment
Guerra, Erick, Shengxiao Li, and Ariadna Reyes · Urban Studies 59 (1): 75–96