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

Road Ecology Course and Seminar Series

Mark Sytsma
The American road network is a major economic investment that is a major organizing force for human activity. The road system has profoundly altered ecological processes and, as a result, it is also an important organizing force for ecosystems. Understanding the ecological consequences of road system design and use is critical to effective engineering and management of road systems to minimize impacts. I propose a new course within Environmental Science and Resources at PSU that will expose u... Read More

Improving Trip Generation Methods for Livable Communities

Kelly Clifton
Nico Larco
Current trip generation factors and methods used by engineers across the country do not accurately estimate travel from types of development key to livable communities, such as mixed use and infill development, and focus on motorized modes. This project addresses that problem, building upon two prior efforts, one in Oregon and one in California. Data from these prior projects will be pooled, creating a combined sample of over 180 sites in a variety of urban contexts. We will use these pooled ... Read More