ITS Publications - The Institute of Transportation Studies at UC Irvine

research report | March 03, 2026

research report | February 2026

Development of New Privacy-preserving Method for Traffic Data Collection and Analysis: The Bathtub Model Approach

Wenlong Jin, Joseph H. F. Lo

policy brief | February 03, 2026

policy brief | January 2026

What Should Agencies Measure to Decide if Microtransit Is Working?

Michael Hyland, Kari Edison Watkins, Susan Shaheen

policy brief | January 13, 2026

policy brief | January 2026

Peak Pricing and Transfer Discounts Can Make Microtransit More Efficient

Michael Hyland, Ritun Saha, Siwei Hu

published journal article | December 31, 2025

published journal article | December 2025

Impact of Flight Trajectory Design on Performance and Noise for AAM Aircraft

Victoria Pellerito Gonzalez, Seraphin Yeung, Jacqueline Huynh, R. John Hansman

policy brief | December 17, 2025

policy brief | December 2025

LA County's GoPass Program Helped Build Transit Ridership While Enhancing Student Outcomes

Jean-Daniel Saphores, Farzana Khatun

published journal article | December 31, 2025

published journal article | December 2025

Farzana Khatun and Jean-Daniel Saphores (2025) “Free transit for students to regain ridership: Users and boarding characteristics of LA Metro's GoPass program”, Journal of Transport Geography, 129, p. 104442.

policy brief | December 31, 2025

policy brief | December 2025

Free and Reduced Transit Fare Programs in California Increased After COVID-19–But Can it Last?

Jean-Daniel Saphores, Farzana Khatun

published journal article | December 31, 2025

published journal article | December 2025

Meiqing Li, Daniel A. Rodriguez, Susie Pike and Michael McNally (2025) “Rail transit ridership changes in COVID-19: Lessons for station area planning in California”, Journal of Urban Mobility, 8, p. 100153.

published journal article | November 05, 2025

published journal article | December 2025

Raymen Rammy Assaf, Shelby K Shelton, Tricia Morphew, Susan Clayton and Jun Wu (2025) “Climate anxiety among adolescents in a pediatric emergency department”, Environmental Research: Health, 3(4), p. 045001.

policy brief | December 31, 2025

policy brief | December 2025

Understanding How Caregivers Travel Can Help Strengthen Families and Inform More Equitable Transportation Policies

Mahbuba Chowdhury, Elisa Borowski

policy brief | December 31, 2025

policy brief | December 2025

Balancing Noise, Energy, and Time: Designing Advanced Air Mobility Operations for Urban Integration

Jacqueline Huynh

published journal article | November 05, 2025

published journal article | November 2025

Negin Shariat, Dingtong Yang and R. Jayakrishnan (2025) “Partnering with transportation network companies (TNCs) for low-demand service: is it viable and beneficial for transit agencies?”, Transportation Research Part A: Policy and Practice, 201, p. 104682.

published journal article | November 05, 2025

published journal article | November 2025

Tanjeeb Ahmed, Rezwana Rafiq and Sarwar Jahan (2025) “Classifying urban commuters by trip chaining behavior in a developing country city”, Transportation Research Interdisciplinary Perspectives, 34, p. 101651.

published journal article | March 09, 2026

published journal article | November 2025

Virginia Parks, William Sites and Tadeo Weiner Davis (2025) “NONPROFIT LED NEOLIBERAL GROWTH MACHINES AND THE PRIVATIZATION OF COMMUNITY ENGAGEMENT: the obama presidential center on chicago’s south side”, International Journal of Urban and Regional Research, 49(6), pp. 1417–1436.

presentation | December 17, 2025

presentation | October 2025

Saathvika Ajith (2025) “Community Knowledge Exchange for Future Air-Taxi Integration”. 2025 Emerging Scholars Transportation Research Showcase II, ITS-Irvine, 24 October.

presentation | January 01, 2026

presentation | October 2025

Alex Wang (2025) “Automatic Identification of Week-to-Week Stationary States”. 2025 Emerging Scholars Transportation Research Showcase II, ITS-Irvine, 24 October.

presentation | November 20, 2025

presentation | October 2025

Luke Li (2025) “Clustering and Optimizing Transit Requests for Scalable Shortest-Path Routing”. 2025 Emerging Scholars Transportation Research Showcase II, ITS-Irvine, 24 October.

presentation | November 20, 2025

presentation | October 2025

Melissa Lepe (2025) “The Road to Air Taxis:”. 2025 Emerging Scholars Transportation Research Showcase II, ITS-Irvine, 24 October.

presentation | December 31, 2025

presentation | October 2025

Alexander Bergman (2025) “Compiling Barriers in Advanced Air Mobility Implementation”. 2025 Emerging Scholars Transportation Research Showcase II, ITS-Irvine, 24 October.

presentation | December 31, 2025

presentation | October 2025

Natalia Nagata (2025) “Adoption of Mobility Care Plans Among African American Older Adults in Orange County”. 2025 Emerging Scholars Transportation Research Showcase II, ITS-Irvine, 24 October.