Kayleigh Campbell is currently a Senior Transportation Economist at the Washington Metropolitan Area Transit Authority. She previously worked at the World Bank in the Development Impact Evaluation group managing operations for a transportation research program of over 30 impact evaluations in 19 different countries. Kayleigh works with teams to embed research and data analysis into operational projects, which has been an effective tool for implementing change and enabling evidence-based decision making. Her research explores how transportation shapes cities and the lives of people in cities, from quantifying the impact of bike sharing on bus ridership in New York City, to measuring mobility and accessibility in Nairobi, to exploring how historical urban development shapes carbon dioxide emissions.