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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

Evaluating Improved Transit Connections for Ladders of Opportunity

Stephen Mattingly Yi-Chang Chiu , Sia Ardekani , Courtney Cronley , Noelle Fields
Many transit operators employ limited strategies to provide connectivity to transit, like bicycle racks on buses. This project will examine more innovative options, such as: subsidies, hybrid ride sharing business models, flexible routing, smaller transit vehicles, transit-sponsored bike share programs, and social carpooling to meet first and last mile needs and increase mobility for all users, especially underserved and disadvantaged populations. As part of the University of Arizona’s cost… Read More

Enabling Decision-Making in Battery Electric Bus Deployment through Interactive Visualization

Xiaoyue Cathy Liu Jianli Chen
Encouraged by the advancement of battery technology, the transition from diesel or compressed natural gas to fully zero-emission bus fleets has been the trend in the United States. Policymakers and transit agencies have set up goals to accelerate such transition, yet various challenges that are, by nature, institutional, technological and/or financial still present themselves. For example, in terms of institutional challenges, cities without a proper fleet management framework will have a hard… Read More

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