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

Establishing Risk-based Bridge Management Models and Tools for Municipal Transportation Assets

David Yang
The Portland Bureau of Transportation (PBOT) manages a bridge inventory including National Bridge Inventory (NBI) bridges, non-NBI pedestrian bridges, and culverts. Historically, condition data has been stored in disparate and/or non-digital formats, hindering efficient management and decision-making for rehabilitation efforts. PBOT is addressing this by migrating to AASHTOWare BrM, a bridge management system, to digitize and standardize infrastructure data. However, this process faces… 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