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

Applying an Equity Lens to Automated Payment Solutions for Public Transportation

Aaron Golub
Anne Brown , Jenny Liu , Candace Brakewood , John MacArthur
As transit agencies modernize their fare payment systems, opportunities to pay with cash are reduced. This speeds boarding and lowers the cost of operations while also creating new sources of ridership data. Arguably, service is improved for riders as well, where payment systems work across modes, and in some cases different transit providers, creating a more seamless and simplified experience. Still, about 15% of adults in the United States are without a bank account or credit card account a... Read More

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... Read More