Rod Diridon Sr., the transportation pioneer whose name graces San Jose’s central transit hub, passed away on Friday, April 3, 2026, at the age of 87. His death marks the end of an era for Bay Area public transit advocacy, a legacy spanning more than five decades of relentless work to build the connected, equitable transportation systems we depend on today.

The Valley Transportation Authority announced his passing on social media, calling him “a visionary leader and tireless champion of public transportation”. For someone who dedicated his life to making sure the Bay Area’s transit network served everyone, not just the wealthy, that description feels fitting.

Diridon’s fingerprints are all over the transportation infrastructure we use. From 1979 to 1999, he served on both the Santa Clara County Board of Supervisors and the Santa Clara County Transit Board, giving him a seat at the table when major decisions were being made about how our region would move forward. He wasn’t just sitting in meetings either, he chaired seven different rail project boards, including Caltrain and the Guadalupe Corridor Light Rail Project, actually shaping the projects themselves.

In 2001, Governor Gray Davis appointed him to the High Speed Rail Authority, recognizing his expertise and influence in transportation planning. Later, Diridon took on the role of executive director for the Mineta Transportation Institute, a San Jose-based research center created by Congress in 1991 that studies transportation policy and education.

But Diridon’s influence extended far beyond California. He chaired the regional Metropolitan Transportation Commission, led the national American Public Transit Association Board, and served as vice-chair for the Americas of the International Transit Association in Brussels. For someone from San Jose, that’s a pretty remarkable reach, and it shows how seriously the national transit community took his work.

The Diridon Station itself, located in downtown San Jose, stands as a physical monument to his vision. The transit hub connects passengers to multiple rail lines and represents the kind of centralized, multi-modal transportation infrastructure that Diridon spent his career advocating for. It’s the kind of project that wouldn’t exist without people willing to push for better public transportation when it wasn’t always politically popular.

What made Diridon special wasn’t just that he held important positions, it was his genuine commitment to equitable transit. The VTA noted that he “advocated for expanded, equitable transit, helping shape the systems our communities depend on today”. That focus on equity matters because public transportation isn’t just about convenience for people who can afford other options; it’s about making sure everyone can access jobs, healthcare, and opportunities.

As the Bay Area continues to grapple with housing affordability, climate change, and regional connectivity, Diridon’s legacy reminds us why public transit matters. He understood that how we move shapes who we are and where we can go. That vision will outlast him.