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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

Active Transportation Return on Investment Study

Jennifer Dill
Jenny Liu , Marisa Zapata
The Active Transportation Return on Investment (ATROI) study aimed to provide a quantitative and qualitative assessment of the benefits of active transportation infrastructure in the Portland, OR region. The study used a selection of projects constructed in the region between 2001 and 2017 to evaluate impacts, with a focus on economic impacts, broadly defined. Two types of projects are included. 2040 catalyst projects retrofitted busy commercial streets with pedestrian friendly treatments aim... Read More

National Scan of Bike Share Equity Programs

John MacArthur
Nathan McNeil , Joe Broach
As bike share systems around the United States have grown in number and size in recent years, there has been an increasing effort to ensure that those systems are accessible to all residents, particularly those who have the fewest resources or have been underserved in the past. The mobility landscape in 2019 is rapidly changing, with scooter and e-bike systems along with ride-hailing and ride-sharing companies contributing to a new and uncharted urban transportation scene. Meanwhile, bike sha... Read More