Southern California
Hawaii | Southern California Counties
Welcome to the Southern California Chapter...
Where our members bring the California sunshine and the sweet Hawaiian aloha. 
We’re excited to welcome you to our chapter. We are an enthusiastic group of professionals, visionaries, and change-makers who are shaping the way our regions move.
Our chapter is dedicated to fostering collaboration, leading meaningful conversations, sharing our knowledge, and driving impactful change across Southern California/Hawaii’s transportation landscape all while having fun.
Our members gather and bring people together to keep our communities connected and growing. Join us for our events we host throughout the year. Whether it’s a beach bonfire to kick off TDM Week or an exclusive LAX People Mover Tour, we are always excited to learn from each other. Through events, dialogue, and partnerships, we aim to spark bold thinking and build smarter, more sustainable transportation futures.
So here’s to the journeys ahead. Together, let’s keep moving forward.
Meetings & Events
Break Up with the Pump!Wednesday, April 29, 202612:00 -1:30pm PTAttending this event qualifies for 2 TDM-CP credits.
TDM-CP: Form a Study GroupWednesday, May 6, 202612:00 - 1:00pm PTAttending this event qualifies for 2 TDM-CP credits.
Previous Chapter Presentations
Programs & Services
Chapter scholarships may be available. Contact your chapter leaders for details!
Southern California Resources |
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Southern California Chapter Leadership
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Devon Deming, Employee Transportation Coordinator (ETC) Certification with SCAQMD
Deputy Executive Officer, Fare Programs Metropolitan Transportation AuthorityPresident -
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Andrea AguileraTransportation Analyst California State University - FullertonAt-Large Director
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Aaron BonfilioDirector of Multimodal Programs Santa Barbara County Association of GovernmentsAt-Large Director
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Eliza Yu-Dietz, TDM-CP, TDM-CPTransportation Planning Manager (Shared Mobility) MTA Shared Mobility (Operations)At-Large Director
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Aaron Gaul, TDM-CP
Principal, TDM Programs Lead Alta Planning + DesignImmediate Past President



