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.
NOTE: If you're looking for projects from our partner campuses, use the NITC research search.
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...
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Human Wayfinding
Amy Parker
The Tri-County Metropolitan Transportation District Of Oregon (TriMet) is in need of specialized support to improve and promote effective resources in human wayfinding and navigation at its transit centers. Areas of need include, but are not limited to:
1. Tactile Maps: Providing tactile spatial information accessible to people who are blind or low vision.
2. Written descriptions of stations and routes: information needed by people who are blind or low vision, to allow independent mobil...
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