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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.

Research Highlights

The Role of Bus Stop Features in Facilitating Accessibility

Keith Bartholomew Arlie Adkins
A bus stop can be anything from a simple signpost stuck in the grass, to a comfortable shelter with seating and paved access to the sidewalk. For many U.S. transit agencies across the country, improving facilities at bus stops is a priority. But how much do these improvements actually affect ridership? A lot, it turns out. A new NITC study, co-funded by the Utah Transit Authority (UTA) and led by Keith Bartholomew of the University of Utah, found a 5.9% increase in boardings after improvements… Read More

E-Scooters and Public Health: Understanding the Implications of E-Scooters on Chronic Disease

Nicole Iroz-Elardo
E-scooters are an emerging micromobility transportation option with implications on transportation systems and public health. To date, most research on public health and E-Scooters has focused on safety implications. Health implications other than injuries are likely, but there has been no investigation to date of e-scooter impacts on chronic disease. For example, there is some indication that e-scooters are replacing some auto trips with about a third of users self-reporting the trip would… Read More

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