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

Network Effects of Disruptive Traffic Events

Juan Medina Xiaoyue Cathy Liu
Current traffic management strategies are based on expected conditions caused by recurring congestion (e.g. by time of day, day of week), and can be very effective when provisions are also given for reasonable variations from such expectations. However, traffic variations due to non recurrent events (e.g. crashes) can be much larger and difficult to predict, making also challenging efforts to measure and forecast their disruptive effects. This project explores a proactive approach to manage non… Read More

Toward Data and Solution-Focused Approaches to Support Homeless Populations on Public Transit

Anne Nordberg Jaya Davis , Stephen Mattingly
No matter where you live, but especially if you live in a big city, you have likely seen people experiencing homelessness (PEH) using public transportation services. PEH use public transportation not only to get from place to place but also as shelter. Unfortunately, the relationship between the homeless populations, homeless services providers, and transportation providers is not well understood, making it difficult to pinpoint the best ways to accommodate those experiencing homelessness. … Read More