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
Transportation, Social Support by Family Visitation, and Depression of Older Adult Nursing Home Residents: A Mixed-Methods Study
Vivian Miller
Older adults who live in nursing homes are at an increased risk for depression and anxiety, and research has shown that social connections and family support are key factors that positively impact their mental health. However, research also suggests that one of the primary barriers to maintaining those relationships, and enabling family members to visit residents, is transportation. This NITC dissertation examined transportation barriers of family members in the community visiting their loved…
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ADA Accessible Trail Improvement with Naturally Occurring, Sustainable Materials
Matthew Sleep
Approximately 7,700 years ago—in a cataclysmic event which the Klamath people retold and passed down for over 300 generations—Mount Mazama erupted, forming Crater Lake in Oregon. With molten rock reaching temperatures of up to 2,200 degrees Fahrenheit, complex chemical reactions ensued. The resulting Mazama ash holds some properties that are similar to those in portland cement.
Today, most construction projects use portland cement, which takes an excessive amount of energy to create…
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