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

Revisiting TODs: How Subsequent Development Affects the Travel Behavior of Residents in Existing Transit-Oriented Developments

Nathan McNeil
Jennifer Dill
Since 2000, Metro, the regional government in Portland, OR, has invested public funds in development projects through their TOD program. The agency generally provides between $300,000 and $500,000 in situations wherein the additional funding can help realize denser projects that increase the number of people served by high-quality transit and/or catalyze development sooner than would occur if left completely to the market. As will be discussed later, definitions of transit-oriented developmen... Read More

Road User Understanding of Bicycle Signal Faces on Traffic Signals

Christopher Monsere
Sirisha Kothuri
Bicycling is increasing in the United States – the number of trips made by bicycle more than doubled from 1.7 billion trips in 2001 to 4 billion in 2009 (NHTS, 2009). With the increase in bicycling rates, there is a critical need for cycling infrastructure, which includes on and off road bicycle lanes and paths, separated lanes, improved intersection designs, pavement markings, bike boxes, two-stage turn boxes, and bicycle-specific traffic signals. These traffic signals, which have a red-yell... Read More