Research | Transportation Research and Education Center

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

Statistical Inference for Multimodal Travel Time Reliability

Principal Investigator: Avinash Unnikrishnan

Co-Investigators: Miguel Andres Figliozzi , Subhash Kochar

Travel time reliability – or the consistency and dependability of travel times from day to day, and at different times of day – is a key metric that significantly affects people’s travel behavior. Since businesses rely heavily on transportation systems, an unreliable transportation network can also impact the economic competitiveness of urban areas. As such, reliable travel times are important for transportation agencies to promote economic stability within a community. Having accurate method... Read More

Connected Streetcar Project

Principal Investigator: Kristin Tufte

Co-Investigators: Larry Head , John MacArthur

This project will create a foundation for deploying connected vehicle infrastructure and facilitating connected vehicle research for the NITC UTC. Connected Vehicle (CV) technology and the associated data has the potential to help us better understand vehicle, streetcar, and transit performance as well as improve safety for vehicles, pedestrians and bicyclists. Specifically, this project will deploy the Multi Modal Intelligent Traffic Signal System (MMITSS) — a Dynamic Mobility Application th... Read More