Professor Emerita of City and Regional Planning and Urban Design at the University of California-Berkeley, has taught and researched transportation, land use and environmental planning for three decades. She is co-editor of High Speed Rail and Sustainability (Routledge, 2017), and author of 300 journal articles, book chapters, and research reports. She advises city, state, and national governments on transportation, urban development, and environmental issues, and has served as an appointed official for state and local government.