TREC’s broad research program addresses complex transportation problems by drawing on multiple disciplines, including engineering, planning, economics and design, from across the Portland State University campus. Browse the featured projects below or 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

Demonstrating the Benefits of Sustainable Streets for Active Aging

Jennifer Dill
Margaret Neal
This project will help demonstrate how sustainable ("green") streets contribute to the well-being of a community, including the physical and mental health of older and younger adults, along with the environment and economy. The project will collect data in Portland, OR neighborhoods to answer the following research questions: Are residents living near sustainable streets more physically active in their neighborhood? Do residents living near sustainable streets interact with neighbors mo... Read More

Operational Analysis of Transit Bus Collisions

James Strathman
Many factors can influence bus crashes and other incidents. In this study, James Strathman of Portland State University sought to quantify the relationship between bus crashes and crash determinants in the Portland-area TriMet system using a spatially disaggregate, risk-based approach. Strathman examined 4,631 collision and non-collision incidents between 2006 and 2009 to determine how operator demographics, employment status, assignment characteristics, service delivery, performance indi... Read More