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
Is There a "Buy Local" Case for Lower Travel Speeds? Testing Differences in Driver Recognition of Local Versus National Retail at Different Travel Speeds
Jonathan Bean Arlie Adkins , Tara Goddard
City officials and business leaders looking to increase economic performance and attract new residents recognize the benefits of having a strong local retail environment. Money spent at a local retail is more likely to stay in the community (Civic Economics, 2008; Patel and Martin, 2011) and sell goods that are sourced locally (Clark & Banga, 2010). A commissioned study in Grand Rapids, Michigan, found that locally owned restaurants spent 56% their revenues locally, compared to only 37% in the…
Read More
How does transportation affordability vary between TODs, TADs, and other areas
Brenda Scheer Reid Ewing
Transit-oriented development, or TOD, could be the “poster child” for sustainable urban development. It concentrates land uses, including commercial and multi-family housing, near transit stations so as to reduce car dependency and increase ridership. The benefits are manifold; increased community health, positive economic impacts, less harm to the environment and potentially greater social equity.
But what about affordability? In exchange for all these benefits, do TOD residents spend more…
Read More


