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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 Essential is Essential Air Service? The Value of Airport Access for Remote Communities

Austin Drukker
Essential Air Service is a federal government program that provides subsidies to airlines that provide commercial service between certain remote communities and larger hubs, which proponents argue are justified because driving to larger airports would be prohibitively expensive for residents of these communities. I estimate the value of Essential Air Service to local communities using a revealed-preferences approach by formulating and estimating a discrete-choice model of domestic air travel… Read More

Reducing VMT, Encouraging Walk Trips, and Facilitating Efficient Trip Chains through Polycentric Development

Reid Ewing
A "polycentric" region is a network of compact developments (centers) that are connected with each other through high-quality transportation options. As the antidote to sprawling suburbs, compact centers can encourage all the things that sprawl discourages: public health, environmental sustainability, social cohesion, and economic diversity. But how can metropolitan planning organizations ensure that their regional plans will actually meet these goals? Polycentric development has been… Read More

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