Dahianna Lopez, RN, MSN, MPH is the Prevention Director of the San Francisco Injury Center. She has almost a decade of combined research experience working in psychology, nursing, and psychophysiology laboratories throughout the UC System. She is interested in the link between transportation policies and injury outcomes. At SFIC, she has been involved in calculating the cost of pedestrian injury for San Francisco, identifying underreported bicycle injuries, and conducting a cost-benefit analysis of an engineering countermeasure versus injury treatment costs. She also provides data and analytical support for the Wraparound Project for Violence Prevention. She has served on the SF Board of Supervisor's Pedestrian Safety Advisory Committee as Secretary and Vice Chair. Dahianna is also on the Board of Directors of WalkSF, a non-profit pedestrian safety advocacy organization. She earned a bachelor's degree in Psychology from UC Berkeley and dual Master's degrees in public health and nursing from UC Los Angeles. Dahianna will begin the PhD in Health Policy program at Harvard University in the fall of 2011.