Journal Articles (* indicates the corresponding author)  


  1. Qian, X., Jaller, M., Niemeier, D.* (2020). Enhancing equitable service level: Which can address better, dockless or dock-based Bikeshare systems? Journal of Transport Geography, 86, 102784. DOI: 10.1016/j.jtrangeo.2020.102784

  2. Qian, X., Moore, J. K., Niemeier, D.* (2020). Predicting Bicycle Pavement Ride Quality: Sensor-Based Statistical Model. Journal of Infrastructure Systems, 26(3), 04020033. DOI: 10.1061/(ASCE)IS.1943-555X.0000571

  3. Qian, X.*, Jaller, M. (2020). Bikesharing, Equity, and Disadvantaged Communities: A Case Study in Chicago. Transportation Research Part A: Policy and Practice, DOI: 10.1016/j.tra.2020.07.004

  4. Qian, X., Jaller, M.* (2020). Impacts of Accessibility Improvements on Bikeshare Destination Choice among Disadvantaged Populations”, under the second-round review by Journal of Transportation Research Part D

  5. Qian, X.*, Jaller, M., Handy, S. (2020). Informing Bikeshare Planning and Operations Using Web-Based Crowdsourced Data: A Case Study in Chicago, intended for Journal of Planning Education and Research

  6. Qian, X.*, Jaller, M., Circella, G. (2020). Optimal Locations of Bikeshare Stations Under an Equitable Consideration, under review by Transportation

  7. Qian, X.*, Jaller, M., Circella, G. (2020). Potential Role of Shared Micro-Mobility to Complement Public Transit: the Case of San Francisco amid the Coronavirus Crisis, under review by Cities

  8. Grajdura, S., Qian, X., Niemeier, D.* (2020). Awareness, Departure, and Preparation Time in No-Notice Wildfire Evacuations, under review by Safety Science

  9. Qian, X., Niemeier, D.* (2019). High impact prioritization of bikeshare program investment to improve disadvantaged communities’ access to jobs and essential services. Journal of Transport Geography, 76, 52–70. DOI: 10.1016/j.jtrangeo.2019.02.008

  10. Qian, X., Wu, Y.* (2019). Assessment for health equity of PM2.5 exposure in bikeshare systems: The case of Divvy in Chicago. Journal of Transport & Health, 14, 100596. DOI: 10.1016/j.jth.2019.100596

  11. Li, R.*, Qian, X., Wu, H. (2016). Gaussian Mixture Model for Urban Link Travel Time Analysis. Journal of Transportation Systems Engineering and Information Technology. 16.4 (2016): 179–184 (in Chinese). Link


Working Paper


  1. Qian, X., Yang, H.* (2020). Understanding the Uncertainty of Shared Micro-mobility on Activity-Based Demand Modeling Using a Continuous Hidden Markov Model. Draft for Journal of Transportation Research Part B

  2. Wang, K., Qian, X., Circella, G.*, Lee, Y., Malik, J., Fitch, D., Wallington, T., Broaddus, A. (2020). What mobility modes do shared e-scooters displace? A review of recent research findings. Draft for Transport Reviews

  3. Qian, X., Ma, W.* (2020). Analysis of Intelligent Transportation Technologies to Improve Cyclist Safety at Intersections. Draft for Accident Analysis & Prevention

  4. Jaller, M.*, Qian, X., Zhang, X. (2020). Spatial Distribution of Warehouses and Distribution Centers in Southern California: Reconsidering Logistics Sprawl from a Disaggregate Real Estate Transaction Analysis. Draft for Journal of Transport Geography




  1. Jaller, M., Qian, X., Zhang, X. (2020). E-commerce, Warehousing and Distribution Facilities in California: A Dynamic Landscape and the Impacts on Disadvantaged Communities. UC Office of the President: University of California Institute of Transportation Studies. DOI:10.7922/G2FJ2F2W

  2. Niemeier, D., Qian, X. (2018). High Impact Prioritization of Bikeshare Program Investment to Improve Underserved Communities’ Access to Jobs and Essential Services. UC Davis: National Center for Sustainable Transportation.


Policy Briefs


  1. Jaller, M., Qian, X., Zhang, X. (2020). E-commerce is Reshaping the Warehousing Landscape – and it May Impact Disadvantaged Communities. UC Office of the President: University of California Institute of Transportation Studies. DOI: 10.7922/G2JQ0Z94

  2. Qian, X., Niemeier, D. (2019). Identifying Bikeshare Station Locations to Improve Underserved Communities’ Accessibility. UC Davis: National Center for Sustainable Transportation. DOI: 10.7922/G2NG4NVM




  1. Qian, X. (2019). Modeling Framework for Socially Inclusive Bikesharing Services. UC Davis: Institute of Transportation Studies.