WES MARSHALL, PH.D., P.E, is a professor of civil engineering with a joint appointment in urban and regional planning at the University of Colorado, Denver. He is also director of the CU Denver Transportation Research Center and co-director of the Active Communities/Transportation (ACT) research group. He received his professional engineering license in 2003 and focuses on transportation teaching and research dedicated to creating a more sustainable and resilient world, particularly in terms of road safety. Having spent time in the private sector, he has been addressing these issues for more than 25 years. With more than 80 peer-reviewed publications, he was also the winner of the Campus-wide University of Colorado Denver Outstanding Faculty in Research Award.