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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

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

Social Equity in Transit: Toward social and environmental justice in transportation

Torrey Lyons
Much of the literature on transit focuses on very fine-grained aspects of the industry, often neglecting the important foundation of why the service is even provided in the first place. Transit service is supported by local governments with aid from larger bodies to provide a more diverse transportation network that serves as many needs of the public as possible. While transit agencies tend to focus on ridership as a measure of performance, this can skip over an important aspect of the agency’s… Read More

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