You knew us as the Yellow Bus Challenge. Now we're the Tiburon Peninsula Traffic Alliance (TPTA)—same team, same mission, more programs! 2025-26 passes on sale late May!

Team

The JPA comprises six voting members: two representatives from the Town of Tiburon, two from the City of Belvedere, and two from the Reed Union School District. Representatives are typically sitting council members or school board members. Each agency also provides an alternate.

Our Yellow Bus General Manager oversees the program's operations and strategic planning and is the primary point of contact for parents. To reach the General Manager, please email info@tiburontraffic.org.

Directory

NamePositionContact
Leilah Gilligan General manager Email
Bob McCaskill Board chair / Belvedere representative Email
Sally Wilkinson Board member / Belvedere councilmember Email
Shelby Tsai Board member / RUSD board member Email
Liz Webb Board member / RUSD board member Email
Jack Ryan Board member / Tiburon councilmember Email
Holli Thier Board member / Tiburon councilmember Email
Robert Zadnik Alternate / Belvedere city manager Email
Kimberly McGrath Alternate / RUSD superintendent Email
Greg Chanis Alternate / Tiburon town manager Email
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