Principal Investigator
Giovanni Circella
Team
Farzad Alemi, Susan Handy, Patricia Mokhtarian, Lew Fulton
Acknowledgments
The study received funding by the National Center for Sustainable Transportation and Caltrans. Additional funding was provided by the STEPS Consortium.
Description
The California Panel Study of Emerging Transportation Trends investigates the evolution of travel patterns and the adoption of new transportation technologies in California. The project was launched in 2015, and a new round of data collection was carried out in 2018. The multiple rounds of surveys collect information on individual attitudes and lifestyles, residential location, vehicle ownership, travel behavior, the adoption of shared mobility services, propensity to use autonomous vehicles, and the plans to purchase/change a vehicle in the household. This panel study improves the understanding of the impacts of emerging technologies and shared mobility services, including ridehailing (e.g., Uber and Lyft) and pooled ridehailing services (e.g., UberPOOL and Lyft Line), on vehicle ownership and travel behavior, e.g., the use of other travel modes, while controlling for other changes in transportation trends in California through the application of a unique longitudinal approach.
Resources
JOURNAL ARTICLES AND BOOK CHAPTERS
| 2021 |
Matson G., McElroy s., Lee Y., and Circella G. Longitudinal Analysis of COVID-19 Impacts on Mobility: An Early Snapshot of the Emerging Changes in Travel Behavior. (Under review at TRR) |
| 2019 |
Alemi, F., G. Circella, P. L. Mokhtarian and S. L. Handy (2019) “What Drives the Use of Ridehailing in California? Ordered Probit Models of the Usage Frequency of Uber and Lyft”, Transportation Research Part C, 102, 233-248. (JOURNAL ARTICLE) |
| 2019 | Lee, Y., G. Circella, P. L. Mokhtarian and S. Guhathakurta (forthcoming) “Are Millennials More Multimodal? A Latent Class Analysis with Attitudes and Preferences”, Transportation (accepted). (JOURNAL ARTICLE) |
| 2018 | Alemi, Farzad, Giovanni Circella, Patricia Mokhtarian, and Susan Handy. “Exploring the latent constructs behind the use of ridehailing in California.” Journal of choice modeling 29 (2018): 47-62. (JOURNAL ARTICLE) |
| 2018 | |
| 2018 |
PRESENTATIONS and WEBINARS
| 2019 | NCST webinar "The Adoption of Shared Mobility in California and Its Impacts on the Use of Other Travel Modes" (WEBINAR) |
| 2018 | View the NCST webinar “Impacts of New Mobility Services on the Use of Other Travel Modes in California” (WEBINAR) |
| 2017 | View the Caltrans Planning Horizon seminar “Adoption of Ride-hailing in California and Impacts on the Use of Other Travel Modes” (WEBINAR) and download the slides here (SLIDES) |
REPORTS
| 2019 | Panel Study of Emerging Transportation Technologies and Trends in California: Phase 2 Data Collection (NCST REPORT) |
| 2019 |
Circella, G., Y. Lee and F. Alemi (2019) “Exploring the Relationships Among Travel Multimodality, Driving Behavior, Use of Ridehailing and Energy Consumption”, Project Report, National Center for Sustainable Transportation. University of California, Davis, January 2019 (NCST REPORT) |
| 2018 | The Adoption of Shared Mobility in California and Its Relationship with Other Components of Travel Behavior (NCST REPORT) |
| 2017 | What Affects Millennials’ Mobility? PART II: The Impact of Residential Location, Individual Preferences and Lifestyles on Young Adults’ Travel Behavior in California (NCST REPORT) |
| 2016 | What Affects Millennials’ Mobility? PART I: Investigating the Environmental Concerns, Lifestyles, Mobility-Related Attitudes and Adoption of Technology of Young Adults in California (NCST REPORT) |
CONFERENCE PROCEEDINGS