Graduate Research Assistant

Greg's research explores crowdsourcing for participatory planning, particularly using cases in transportation and health. In 2017, ​he is a member of the University of Texas at Austin School of Architecture's Urban Information Lab, in addition to coordinating field work for the National Institutes of Health-sponsored​ Active Living Austin study with Texas A&M. His research is published in journals such as Transportation Research Record, Urban Geography, Journal of Transport & Health, and the Journal of Urban Technology.​ Previously, Greg worked as a state park planner and regional transportation planner, and taught Transportation Systems at Texas State University. Greg is a member of the American Institute of Certified Planners, bicycles whenever possible, and sometimes tweets @gregpgriffin.


Jiao, J., Holmes, M., & Griffin, G. P. (2017). Revisiting Image of the City in Cyberspace: Analysis of Spatial Twitter Messages During a Special Event. Journal of Urban Technology, (online first). 

Griffin, G., & Sener, I. (2016). Public Transit Equity Analysis at Metropolitan and Local Scales: A Focus on Nine Large Cities in the US. Journal of Public Transportation, 19(4), 126–143.

Griffin, G. P., & Sener, I. N. (2016). Planning for Bike Share Connectivity to Rail Transit. Journal of Public Transportation, 19(2).

Griffin, G. P., & Jiao, J. (2015). Crowdsourcing Bicycle Volumes: Exploring the role of volunteered geographic information
and established monitoring methods
. Journal of the Urban and Regional Information Systems Association 27(1), 57–66. 

Griffin, G. P., & Jiao, J. (2015). Where does Bicycling for Health Happen? Analysing Volunteered Geographic Information through Place and Plexus. Journal of Transport & Health 2(2). 

Griffin, G. P. (2015). The City as Interface, by Martijn de Waal. Urban Geography, 36(4), 625–627.

Griffin, G.P., K. Nordback, T. Götschi, E. Stolz, S. Kothuri. (2014) Transportation Research Circular E-C183: Monitoring Bicyclist and Pedestrian Travel
and Behavior
. Washington, D.C.: Transportation Research Board of the National Academy of Sciences.

Cowley, J.S. and G.P. Griffin. (2012). Microparticipation with Social Media for Community Engagement in Transportation PlanningTransportation Research Record: Journal of the Transportation Research Board 2307: 90-98.

Griffin, G.P. (2010). Review of Pedal Power: The Quiet Rise of the Bicycle in American Public Life, by J. Harry WrayJournal of the American Planning Association, 76(4).

photo of Greg Griffin
  • Bicycle and Pedestrian Planning
  • Co-productive Planning Theory
  • Crowdsourcing
  • GIS
  • Metropolitan Transportation Planning