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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.

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... Read More

Implementing Oregon’s Energy Plan: Opportunities for Operations and ITS

Jon Makler
Oregon’s 10-Year Energy Plan identifies intelligent transportation systems (ITS) as a key strategy for reducing energy consumption in the transportation sector. Other strategies, including fleet turnover, will take a look time to realize benefits for the state while ITS can be implemented and produce results sooner. This project’s goal was to identify operations/ITS opportunities whose near-term implementation or acceleration can aid the accomplishment of the energy plan’s goals. The research... Read More