Susan Shaheen is co-director of the Transportation Sustainability Research Center at UC Berkeley. An internationally recognized leader in innovative mobility research, she continues to focus on car-sharing. Ms. Shaheen is also an adjunct professor in the Civil and Environmental Engineering Department at UC Berkeley. She has a PhD in ecology, focusing on the energy and environmental aspects of transportation, from UC Davis and an MS in public policy analysis from the University of Rochester. After completing her Master's degree, she worked as a consultant to the U.S. Department of Energy and the Environmental Protection Agency in Washington, D.C. and as a special assistant to the Director's Office at the California Department of Transportation.