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
Improving Bicycle Crash Prediction for Urban Road Segments
Sirisha Kothuri
Krista Nordback , Wesley Marshall
The 2010 Highway Safety Manual (HSM) provides methods for predicting the number of motor vehicle crashes on various roadway facilities (AASHTO, 2010). However, it includes only a simplistic method for predicting the number of bicycle-related crashes. The research team investigated the bicycle-specific crash data in eight potential study areas around the U.S.: Arlington, VA (city/county); Bellingham, WA (city); Boulder, CO (city); Denver, CO (city/county); Minneapolis and St. Paul, MN (cities)...
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Homelessness: A Guide for Public Transportation (TCRP J-11/Task 40)
John MacArthur
Marisa Zapata
Unemployment, low wages, poverty, and lack of affordable housing are the main drivers of an increasing homeless population throughout the U.S. in recent years. Transit agencies are being impacted by homelessness. While transit agencies cannot address the underlying causes of homelessness, there are opportunities to work with local partners to be a part of helping individuals in need, while providing a safe, reliable, and customer-friendly experience for all riders.
TCRP Research Report 24...
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