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preprint journal article | June 2026
preprint journal article | October 2025
Free transit for students to regain ridership: Users and boarding characteristics of LA Metro's GoPass program

Farzana Khatun, Jean-Daniel Saphores

policy brief | June 2026
research report | June 2026
research report | June 2026
Exploring Sensor Threats and Vulnerabilities in Intelligent Traffic Controllers

Mohammad Abdullah Al Faruque, Yasamin Moghaddas, Avinash Kadiyala, Mohamad Habib Fakih

policy brief | June 2026
policy brief | June 2026
Can Combining Traffic Sensor Data Make Our Roads Safer?

Mohammad Abdullah Al Faruque, Yasamin Moghaddas, Avinash Kadiyala, Mohamad Habib Fakih

Project
An Overview of Free and Discounted Transit Fare Programs in California: What Did COVID Change?

Jean-Daniel Saphores (lead), Farzana Khatun

Project
Examining Ride-hailing Use Pre- and Post-COVID

Giovanni Circella (lead), Yongsung Lee, Patrick Loa, Patrick Loa

Expert
Jingyuan Zhao
WEBPAGE
Protected: Towards More Credible VMT Forecasts for Project-Level Analysis in California
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Project
Policy and Literature Review on the Effect Millennials Have on Vehicle Miles Traveled, Greenhouse Gas Emissions, and the Built Environment

Douglas Houston (lead), Michelle E. Zuniga

Project
A Literature Review: Improving How Active Transportation Demand is Modeled and Evaluated

Michael McNally (lead), Jean-Daniel Saphores, Pierre Auza

Project
Do Compact, Accessible, and Walkable Communities Promote Gender Equality?

Douglas Houston

Project
City and County Pavement Improvement Center

John Harvey (lead), Laura Melendy, David Jones

Project
mAPPing Roadkill to Improve Driver and Wildlife Safety on Highways

Fraser Shilling (lead), David Waetjen

Project
An Equitable and Integrated Approach to Paying for Roads in a Time of Rapid Change

Alex Bayen (lead), Bob Cervero, Elizabeth Deakin, Karen Frick, Susan Shaheen

Project
PRSM Review Year 1 Report A: Review of PRSM Use at Caltrans

Iris Tommelein (lead), Benjamin McKeever, Laura Melendy, Nigel Blampied, Nigel Blampied

policy brief | June 2026
policy brief | May 2026
California Travel Post-Pandemic Has Changed: Are Our Policies Keeping Up?

Sabah Hossain Iqra, Jean-Daniel Saphores

research report | June 2026
Project
Resilient Transportation Infrastructure for Post-Wildfire Debris Flow and Landslide Risk

Sriram Narasimhan (lead), Debasish Jana, Ertugrul Taciroglu, Idil Tanrisever, Idil Akin, Melis Fidansoy

Project
Transportation and Wildfire Evacuation: Lessons from the 2025 Los Angeles Wildfires

Hao Ding (lead), Evelyn Blumenberg

Project
Closing the Urban-Suburban Travel Gap for Low-income Travelers

Evelyn Blumenberg (lead), Sang-O Kim, Madeline Brozen

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