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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

Access to Opportunities: Redefining Planning Methods and Measures for Disadvantaged Populations

Arlie Adkins
Stephen Mattingly
This project will be made up of two separate studies that together will investigate areas where transportation planning and engineering can better serve disadvantaged and underserved communities. An interdisciplinary team of planning and public health researchers from UA will investigate how standard measures and conceptions of walkability hold up across socio-economic contexts. Pilot data from a CDC-funded project suggest that many standard measures of walkability may miss important elements... Read More

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