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Date
3-14-2025
Description
Planners and decision-makers have increasingly voiced a need for network-wide estimates of bicycling and walking. Such volume estimates have for decades informed motorized planning and analysis but have only recently become feasible for non-motorized travel modes. Recently, new sources of activity data have emerged derived primarily from GPS-based smartphone location data, both app-based and passively collected. The project team has led several research projects aimed at evaluating and integrating the emerging sources with conventional demand data, including observed bicycle and pedestrian counts, to assess the value added of various emerging sources and the potential for estimating network-wide volumes. This presentation will summarize lessons learned and propose next steps for agencies and researchers who want to incorporate big data into active transportation volume / exposure estimates.
Biographical Information
Joe Broach is a research associate at the Transportation Research and Education Center (TREC) at Portland State University (PSU) and a Senior Researcher and Modeler at Metro, Portland’s MPO. He has more than 15 years of experience in transportation research and planning, in both academic and public agency settings. His work on non-motorized transportation modeling, behavior, and data has been widely published, incorporated into federal guidance, and used in regional travel models. He holds a PhD in Urban Studies from Portland State University and a Master’s in Economics from the University of Montana, Missoula.
Sirisha Kothuri, Ph.D. is a senior research associate in the Department of Civil and Environmental Engineering at Portland State University. Dr. Kothuri’s primary research interests are in the areas of multimodal traffic operations, bicycle and pedestrian counting, and safety. Dr. Kothuri is the research co-chair of the Transportation Research Board’s Pedestrians Committee (ANF10) and the Bicycle and Pedestrian Data Subcommittee (ABJ 35(3)) and a member of Traffic Signal Systems committee. Dr. Kothuri received her BCE from Osmania University, India, MSCE from Louisiana State University, Baton Rouge and Ph.D. from Portland State University.
Nathan McNeil is a Research Associate at Portland State University's Center for Urban Studies. He researches the impacts of active transportation and transit equity, on new bicycle infrastructure and programs on travel behavior and attitudes towards cycling, on shared-use mobility programs including carsharing and bike-share, and on the connection between land-use and transportation. He was Co-Principal Investigator on recent national studies of bike share equity (Breaking Barrier to Bike Share and National Scan of Bike Share Equity Programs) and of protected bike lane implementations (Lessons from the Green Lanes). Nathan received a master of urban and regional planning from Portland State University (PSU) and studied history at Columbia University as an undergraduate. Before PSU, Nathan worked for the Metropolitan Transportation Authority in New York City as a performance auditor where he evaluated capital programs and contractors.
Disciplines
Transportation | Urban Studies | Urban Studies and Planning
Persistent Identifier
https://archives.pdx.edu/ds/psu/43451
Recommended Citation
Broach, Joeseph; Kothuri, Sirisha; and McNeil, Nathan, "Active Transportation Data Fusion: Incorporating Big Data to Estimate Volumes" (2025). PSU Transportation Seminars. 253.
https://archives.pdx.edu/ds/psu/43451