Conversation so far:
What did Willie Brown do for mass transit?
In 1998, Brown was Mayor during the summer of the Muni meltdown as Muni implemented the new ATC system and Brown promised riders there would be better times ahead.
Did he improve transit?
Brown increased Muni's budget by tens of millions of dollars over his tenure.
Brown later said he made a mistake in over promising with his 100-Day Plan.
What were some of the mistakes he made?
During his first term as mayor, Brown quietly favored the demolition and abolition of the Transbay Terminal to accommodate the redevelopment of the site for market-rate housing.

Question: What was the biggest improvement he made?
Self-contained rewrite: What was the biggest improvement Willie Brown made for mass transit?