The CalHSTA Board

Enzo Wu
President

Enzo Wu is the founder of the Public Transit and Infrastructure club at Dougherty Valley High School and has been a public transit enthusiast and advocate for 3 years. He advocates by doing and documenting his transit speedruns on YouTube, having set multiple world records and helped post videos garnering thousands of views.

David Rabinovich
Vice President

David Rabinovich is a youth transit advocate and a student at San Mateo High School where he is the transit club president and founder. Before becoming president of CalHSTA, he was a co-founder and served as vice-president. He is a member of the SamTrans CAC, representing youth riders, and was part of the campaign to fix the San Mateo Station northbound elevator, improving accessibility for all transit riders. He enjoys transit speedrunning, and holds the SamTrans express bus record, 2nd place for a Muni Metro speedrun, and the pending GWR for BART!

Ben Mangiafico
Secretary

Ben Mangiafico is an avid public transit rider, cyclist, and alternative transportation advocate. He is the founder and president of the Carlmont High School transportation club in Belmont and a member of the SamTrans Citizens Advisory Committee. On the side, he enjoys playing jazz trumpet, technical theater, and going on long walks.

Samuel Sharp
Staff Advisor

Samuel is a lifelong transit rider and a student at UC San Diego. While in high school, he served as the first president of CalHSTA, and was responsible for coordinating and promoting the Let's Go with PRONTO campaign that distributed transit fare cards to thousands of students. Samuel is also a co-founder of BuildSD, working to document and advocate for sustainable development across the San Diego region, and an officer for Public Transit Enthusiasts @ UC San Diego.