Southern California

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

Stay tuned for information on the next meeting! 

Programs & Services

The chapter provides scholarships to the International Conference and TDM Forum each year. Please ask the chapter leaders for more information.

Southern California Resources



Southern California Chapter Leaders

  • Devon Deming
    Devon Deming
    Employee Transportation Coordinator (ETC) Certification with SCAQMD Deputy Executive Officer, Fare Programs Metropolitan Transportation Authority
    President
  • Kristina Valenzuela
    Kristina Valenzuela
    Consultant WSP USA
    Vice President
  • Melissa Molina
    Melissa Molina
    Rideshare Program Administrator Los Angeles World Airports
    Secretary
  • Dia Turner
    Dia Turner
    Management Analyst Culver City Transportation
    Treasurer
  • Destree Bascos, TDM-CP
    Destree Bascos, TDM-CP
    Principal Consultant Steer
    Director
  • Khalisa Bolling
    Khalisa Bolling
    Senior Mobility Planner SANDAG
    Director
  • David DeRosa
    Planning Manager AECOM
    Director
  • Jenny Hong
    Principal Consultant Steer
    Director
  • Kathryn Hagerman Medina
    Kathryn Hagerman Medina
    Head of Global Customer Success & Marketing RideAmigos
    Director
  • Peter Williamson, TDM-CP
    Peter Williamson, TDM-CP
    TDM-CP Planner II Santa Barbara County Association of Governments
    Director