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

Effect of Residential Street Speed Limit Reduction from 25 to 20 mi/hr on Driving Speeds in Portland, Oregon

Christopher Monsere Sirisha Kothuri , Jason Anderson
In 2015, the City of Portland adopted Vision Zero's objective of eliminating transportation-related fatalities and serious injuries. Speed, through analysis of crash data, was determined to be a contributing factor in 47% of the fatal crashes observed in Portland. Thus, one of the pillars in the Vision Zero Action Plan is reductions in motor vehicle speeds. The Portland City Council approved an ordinance reducing the speed limit on all residential streets to 20 miles per hour (mph) in January… Read More

Identifying and Measuring Transportation Challenges for Survivors in Intimate Partner Violence Shelters

Sarah Leat
Environmental stressors within the built environment can greatly impact health. Environmental stressors, such as noise levels, crowding, and housing quality have been shown to impact physical healing as well as mental health. Although environmental stressors have been examined within healthcare environments, such as hospitals and clinics, very little research exists about the presence of environmental stressors within shelter environments. Furthermore, even less research has looked at… Read More