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

Racial Bias in Drivers' Yielding Behavior at Crosswalks: Understanding the Effect

Kimberly Kahn
Led by Dr. Kimberly Kahn of Portland State University, the purpose of this investigation is to explore social identity-related factors that influence drivers’ behaviors in interactions with pedestrians at crosswalks. Dr. Kahn and her research team conducted a field experiment where black and white male and female pedestrians wore identical clothing and repeatedly crossed the same intersection in a systematic manner, with coders in the field marking drivers’ behaviors. The initial study … Read More

Job-Worker Balance & Polycentric Transit-Oriented Development: Toward Indices and Spatio-temporal Trends

Robert Hibberd
According to new research, transit-oriented development (TOD) can address the equity challenge of "spatial mismatch," where urban residents are isolated from relevant employment centers, and significantly improve employment access. "Job-Worker Balance & Polycentric Transit-Oriented Development: Toward Indices and Spatio-temporal Trends," funded by the National Institute for Transportation and Communities (NITC), examines how transit-oriented development (TOD) affects employment access and… Read More