Tilly Chang serves as Executive Director of the San Francisco County Transportation Authority. The San Francisco County Transportation Authority spearheads strategic planning and allocates funding for transportation projects in San Francisco. The Transportation Authority collaborates with Muni, BART, Caltrain, other government agencies and the public to improve transportation options in San Francisco. Ms. Chang has 20 years of experience, including 10 years with the Transportation Authority as its Deputy for Planning. Ms. Chang held prior posts with the World Bank, Metropolitan Transportation Commission, and in the private sector. She holds degrees in Transportation and Economics from M.I.T. and U.C. Berkeley.