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

Value of Reliability

Miguel Figliozzi
David Levinson
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 congestion ... Read More

Development of a Pedestrian Demand Estimation Tool

Kelly Clifton
There is growing support for improvements to the quality of the walking environment, including more investments to promote pedestrian travel. Planners, engineers and others seek improved tools to estimate the level of pedestrian demand that are sensitive to environmental and demographic factors at the appropriate scale to aid policy-relevant issues like air quality, public health, and the smart allocation of infrastructure and other resources. To this end, a previous OTREC-funded project "Imp... Read More