Professional Activities

Advisor 
National Center for Safe Routes to School, Highway Safety Research Center, University of North Carolina, Chapel Hill, 2006-present
Safe Routes to School National Partnership, 2007-
National Walk to School Evaluation project, University of North Carolina, Chapel Hill—Centers for Disease Control and Prevention grant,, 2002-2005

External Grant Reviewer               
Prevention Research Centers Program, Centers for Disease Control and Prevention
Active Living Research, Robert Wood Johnson Foundation

Manuscript Reviewer                     
American Journal of Preventive Medicine
Children, Youth, and Environment
International Journal of Behavioral Nutrition and Physical Activity
Journal of the American Planning Association
Journal of Planning Education and Research
Obesity Research
Preventive Medicine
Transportation Research Board
Transportation Research Part A

Memberships                               
American Planning Association
American Public Health Association
Safe Routes to School National Partnership
Transportation Research Board (Joint Subcommittee on School Transportation)

Community activities

Bicycle Advisory Committee, Texas Department of Transportation, 2006-2007
City of Austin, Mayor’s Council on Fitness, 2005-2007
Traffic Commissioner, City of Encinitas, California, 1999