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

Scooting to a New Era in Active Transportation: Examining the Use and Safety of E-Scooters

Kristina Currans Reid Ewing , Nicole Iroz-Elardo
In recent years, shared electric scooters (e-scooters) have taken cities around the world by storm. But how are people using this new mode of transportation? Seeking to understand the potential impacts of e-scooters on land use, infrastructure and sustainability goals, researchers have some new interesting data to share on e-scooter users, exploring the interplay between demographics, behaviors and trip purposes. Funded by the National Institute for Transportation and Communities (NITC) and… Read More