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
The E-Bike Potential: How E-Bikes Can Improve Sustainable Transportation
John MacArthur
Christopher Cherry
The electric bicycle (e-bike) is a recently introduced mode of travel that is rapidly gaining in popularity throughout the United States. The e-bike can offer a cheaper alternative to car travel (Popovich et al. 2014) and can provide users with an adequate level of physical activity intensity necessary to enhance health (Fishman and Cherry 2016). Riding an e-bike is rewarding and fun, is freeing for users with limited ability and mobility, and can even lead to a car-free household (Popovich e...
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Evaluation of Roadway Reallocation Projects
Miguel Andres Figliozzi
In the last decade there has been a national trend toward projects that involve roadway space reallocation across modes. Many of these projects may include road diets and are typically very controversial when automobile travel lanes and/or curbside parking are proposed for removal.
Cities and federal agencies typically evaluate roadway changes utilizing level of service measures. Traditional level of service (LOS) for automobile traffic is based on travel time and congestion levels. New ...
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