S.R. Gehrke. (2020). Uber service area expansion in three major American cities. Journal of Transport Geography 86: 102752. 
Publications
S.R. Gehrke, A. Akhavan, P.G. Furth, Q. Wang, & T.G. Reardon. (2020). A cycling-focused accessibility tool to support regional bike network connectivity. Transportation Research Part D: Transport and Environment 85: 102388.
S.R. Gehrke, & L. Wang. (2020). Operationalizing the neighborhood effects of the built environment on travel behavior. Journal of Transport Geography 82: 102561.
T.F. Welch, S.R. Gehrke, & A. Widita. (2020). Shared-use mobility competition: A trip-level analysis of taxi, bikeshare, and transit mode choice in Washington, DC. Transportmetrica A: Transport Science 16(1): 43-55.
S.R. Gehrke, P.A. Singleton, & K.J. Clifton. (2019). Understanding stated neighborhood preferences: The roles of lifecycle stage, mobility style, and lifestyle aspirations. Travel Behaviour and Society 17: 62-71.
S.R. Gehrke, & T.F. Welch. (2019). A bikeshare station area typology to forecast the station-level ridership of system expansion. The Journal of Transport and Land Use 12(1): 221-235.
S.R. Gehrke, A. Felix, & T.G. Reardon. (2019). The substitution of ride-hailing services for more sustainable travel options in the Greater Boston Region. Transportation Research Record: Journal of the Transportation Research Board 2673(1): 438-446.
S.R. Gehrke, K.M. Currans, & K.J. Clifton. (2019). Assessing the importance of housing, accessibility, and transportation characteristics on stated neighbourhood preferences. International Journal of Urban Sciences 23(1): 49-66.
S.R. Gehrke, & K.J. Clifton. (2019). An activity-related land use mix construct and its connection to pedestrian travel. Environment and Planning B: Urban Analytics and City Science. 46(1): 9-26.
A.Y. Bigazzi, & S.R. Gehrke. (2018). Joint consideration of energy expenditure, air quality, and safety by cyclists. Transportation Research Part F 58: 652-664.