San Francisco County Transportation Authority
Executive Director
Tilly Chang serves as Executive Director of the San Francisco County Transportation Authority. The Transportation Authority's mission is to make travel safer, healthier, and easier for all. The agency plans, funds, and delivers transportation projects to improve travel choices for residents, commuters, and visitors throughout San Francisco. Ms. Chang oversees the Transportation Authority's administration of San Francisco’s half-cent transportation sales tax and other voter-approved funding programs. She also leads the agency's congestion management functions, including developing the San Francisco Transportation Plan, which is the blueprint for countywide transportation policy and investment.