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

Effectiveness of Transportation Funding Mechanisms for Achieving National, State and Metropolitan Economic, Health and Other Livability Goals

Rob Zako Rebecca Lewis
The Moving Ahead for Progress in the 21st Century Act (MAP-21), adopted in 2012, established national performance goals for Federal-aid highways in seven areas. (Federal Highway Administration, n.d.) MAP-21 requires states and metropolitan planning organizations (MPOs) to establish performance-based planning processes, set targets (performance measures), and link planning and funding to these targets. States and MPOs have different mechanisms for allocating funding from various sources to… Read More

Data-Driven Optimization for E-Scooter System Design

Jianqiang Cheng
Are e-scooters just the first sign of a shared-mobility revolution? If they are, then researchers at the University of Arizona intend to make sure that the emerging transportation system has functional models on par with other modes of transportation. In 2018, approximately 100 U.S. cities had already launched shared e-scooter programs, accounting for 38.5 million trips. However, the models to manage e-scooter sharing are only recently being developed. In a project funded by the National… Read More