TREC research addresses complex transportation problems by drawing on multiple disciplines, including engineering, planning, economics and design, from across the Portland State University campus. 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

Statistical Inference for Multimodal Travel Time Reliability

Avinash Unnikrishnan
Miguel Andres Figliozzi , Subhash Kochar
Travel time reliability – or the consistency and dependability of travel times from day to day, and at different times of day – is a key metric that significantly affects people’s travel behavior. Since businesses rely heavily on transportation systems, an unreliable transportation network can also impact the economic competitiveness of urban areas. As such, reliable travel times are important for transportation agencies to promote economic stability within a community. Having accurate method... Read More

Research Roadmap for the AASHTO Council on Active Transportation (NCHRP 20-123(02))

Jennifer Dill
Christopher Monsere , Nathan McNeil
Funded by the National Cooperative Highway Research Program (NCHRP), a team of researchers from the Transportation Research and Education Center (TREC) at Portland State University (PSU) and Toole Design prepared the Research Roadmap for the American Association of State Highway and Transportation Officials (AASHTO) Council on Active Transportation (CAT). The Roadmap was created to foster research that will address important active transportation needs at the state DOT level and beyond.. They... Read More