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

Evaluation of Bicyclists Exposure to Traffic-Related Air Pollution along Distinct Facility Types

James Pankow
Miguel Figliozzi
Very few concurrent measurements have been carried out on cyclist physiology with air quality, and no measurements that incorporate detailed traffic data. Due to this lack of knowledge, there are significant uncertainties and debate about the net health effects of cycling as a means of transportation in heavily trafficked urban areas. It is perhaps even astonishing that there are currently neither guidelines nor even a moderate understanding of cyclists\\\' uptake of urban pollutants when tra... Read More

Transportation Financing Opportunities for the State of California

Asha Weinstein
Jennifer Dill
Significant investments will be required to maintain, operate, upgrade, and expand California's transportation infrastructure if the state is to retain its economic position in the global economy and accommodate a projected near doubling of the current population by 2040. At the same time, available funding for transportation will decline significantly over the next 15 years if the current transportation finance system remains unchanged. This report analyzes a range of alternative sources of ... Read More