Tilly Chang serves as Executive Director of the San Francisco County Transportation Authority. As the Congestion Management Agency and transportation sales tax administrator for San Francisco, the Transportation Authority collaborates with public agencies and the private sector to improve transportation options for residents, commuters and visitors alike. Ms. Chang has two decades of experience, including serving previously as the Transportation Authority’s Deputy Director for Planning. Ms. Chang has also held posts with the World Bank, Metropolitan Transportation Commission, and a technology startup. She serves on the boards of the California Transportation Foundation, SPUR and the UC Transportation Centers.