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

Seismic Hazard Assessment of Oregon Highways

Peter Dusicka
John Gliebe
Considerable earthquake threat has been identified in the Western part of the continent and also more recently in many other regions across the nation. The effects of an earthquake can result in potential sudden detrimental impact on the transportation infrastructure where bridges represent vulnerability points within the network. When bridge damage occurs during a seismic event, short-term or long-term interruptions to traffic flow result. The economic impact of bridge damage includes not o... Read More

Transit Bus Fleet Management and Optimization Models Addressing New Engine Technologies and Emissions Constraints

Miguel Figliozzi
Ashley Haire
A healthy and efficient public transit system is indispensable to reduce congestion, emissions, energy consumption, and car dependency in urban areas. In addition, public transportation systems play a central role increasing energy independence and supporting livable communities' transportation options and healthy lifestyles. Fleet related costs account for the highest share of fixed and variable bus transit agency costs. In turn, fuel and engine type have a significant impact on fleet p... Read More