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

Freight Distribution Problems in Congested Urban Areas: Fast and effective solution procedures to time-dependent vehicle routing problems

Miguel Figliozzi
Congestion is a common phenomenon in all medium to large cities of the world, and Portland is no exception. For example, the City of Portland Office of Transportation indicates that the growth in truck movement and traffic congestion is rapidly increasing on Portland’s street system. Freight traffic may grow even faster than passenger traffic. Between 2000 and 2020 the number of medium and heavy truck trips is expected to nearly double (COPOT, 2005). From the operational point of view, co... Read More

An Evaluation of the Oregon Department of Transportation’s Environmental Streamlining Efforts: A Focus on CETAS

Connie Ozawa
Jennifer Dill
The Oregon Department of Transportation (ODOT) responded to the federal call in the late 1990s to streamline the National Environmental Policy Act (NEPA) by (1) implementing organizational and procedural changes internal to the agency, (2) funding ODOT-dedicated staff positions in state and federal resource agencies, and (3) convening regular meetings with state and federal agencies with NEPA-related regulatory responsibilities. This latter effort evolved into the CETAS (Collaborative Environ... Read More