TREC’s broad research program addresses complex transportation problems by drawing on multiple disciplines, including engineering, planning, economics and design, from across the Portland State University campus. Browse the featured projects below or 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

Development of a Model to Predict and Mitigate Environmental and Public Health Impacts of Traffic Flows and Traffic Management Policies in Urban Transportation Microenvironments

Linda George
Christopher Monsere , Miguel Figliozzi
Urban residents spend a considerable amount of time in transportation microenvironments as pedestrians, bicyclists, public transit users, residents and workers situated along roadways, and automobile commuters. Within these microenvironments, vehicles powered by carbon-based fuels (e.g., gasoline, diesel) have a negative impact on air quality. Vehicular exhaust is the source of a multitude of air contaminants, including particulate matter (PM). Particulate matter of concern ranges in size fro... Read More

Value of Travel Time Reliability: Commuters' Route Choice Behavior and Study of Tradeoffs - Phase 2

Miguel Figliozzi
David Levinson , Kathleen Harder

The issue of travel time reliability is becoming more critical for the movement of people and freight. In order to examine issues related to the value of travel time reliability, we plan to test drivers' preferences for alternate commuter routes in a real world setting. The research participants will drive on three different routes in two cities: (1) primarily freeway, (2) primarily arterial roads, and (3) other streets. Freeways have a possible trade-off between high speeds and con... Read More