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
Smart, Shared, and Social: Enhancing All-Hazards Transportation Recovery Plans with Demand Management Strategies and Technologies
John MacArthur
Natural disasters, acts of terrorism, and other emergency incidents can affect multiple jurisdictions simultaneously. Major disasters, such as earthquakes, create large-scale impacts that require outside assistance even for the most prepared local public safety and emergency management organizations. The cities, counties, non-governmental organizations, and business-sector stakeholders in a region recognize that they all can more effectively respond to emergencies and facilitate recovery of c...
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Advancing Safety At Intersections: Measuring The Effectiveness Of Traffic Signal Strategies For Speed Management On Operations And Safety
Sirisha Kothuri
Many states are adopting the Safe System approach (USDOT, 2022) to improve traffic safety. As the role of speed in injury severity is becoming increasingly clear, one of the key elements of a Safe System approach is Safer Speeds. Specifically, higher motor vehicle speeds lead to higher injury severity during a collision, especially for nonmotorized users (Rosén and Sander 2009; Tefft 2013) who are the most vulnerable users in the transportation system. Most pedestrian crashes occur on higher-...
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