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TREC research addresses complex transportation problems by drawing on multiple disciplines, including engineering, planning, economics and design, from across the Portland State University campus. Use the search box at right to search for a specific project.

NOTE: If you're looking for projects from our partner campuses, use the NITC research search.

Research Highlights

NCHRP 17-87 Enhancing Pedestrian Volume Estimation and Developing HCM Pedestrian Methodologies for Safe and Sustainable Communities

Christopher Monsere
Sirisha Kothuri , Nathan McNeil
Portland State University is a subcontractor on NCHRP 17-87 award to Kittelson & Associates, Inc: http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=4373 Challenge Despite its prevalence as a transportation mode, walking receives less attention than the motor vehicle mode in terms of national guidance and methods to support planning, designing, and operating safe, functional, and comfortable facilities. Solution Kittelson partnered with Portland State University and the Hi... Read More

Improving Accuracy and Precision of Pedestrian Volume Estimates Using Advanced Machine Learning Approaches

Sirisha Kothuri
Banafsheh Rekabdar
Counts provide the foundation for measuring nonmotorized travel along a link or a network and are also useful for monitoring trends, planning new infrastructure, and for conducting safety, health, and economic analyses. Most agencies still use manual counting methods, however over the last decade, several automated technologies have been developed to count bicyclists and pedestrians. Due to cost and other resource considerations, permanent counts are still limited to small subsets of networks... Read More