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

Characterization of the urban roadway atmospheric environment to evaluate transportation impacts and improve exposure assessment

Christine Kendrick
Urban arterials are landscapes that give rise to short and long-term exposures to increased transportation-related pollution. With high traffic volumes and a wide mix of road users such as those waiting for transit, pedestrians, and bicyclists, urban arterial environments are important targets for improved exposure assessment to traffic-related pollution and application of mitigation strategies. This dissertation project uses long-term roadside air quality and traffic monitoring from a… Read More

Evaluating Efforts to Improve the Equity of Bike Share Systems

Nathan McNeil John MacArthur , Jennifer Dill , Joe Broach
BREAKING BARRIERS TO BIKE SHARE: Insights on Equity. Public bike share systems have rapidly expanded across the United States in recent years. However, there is evidence that significant portions of the population are underrepresented among bike share users, including people of color, along with lower-income, female, older adults and less-educated groups. Lack of bike share stations in neighborhoods with people of color and/or lower incomes is one factor, but does not completely explain the… Read More