Dr. Paul Hanley is an associate professor of transportation in civil and environmental engineering as well as in urban and regional planning at the University of Iowa. He also has an appointment at the University’s Public Policy Center, where he is the director of transportation policy research. His principal research interests are transportation engineering, planning and economic policy analysis. In general, his work focuses on assessing the impacts of policy changes on transportation behavior and on infrastructure provision as a means of enhancing safety, ensuring economic welfare, and promoting sustainable urban patterns. He serves as a Mid-America Transportation Center associate director for the University of Iowa.