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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

Bi-objective Optimization for Battery Electric Bus Deployment Considering Cost and Environmental Equity

Xiaoyue Cathy Liu
Aaron Golub , Ran Wei
Led by Xiaoyue Cathy Liu of the University of Utah, researchers have created a web-based modeling tool that enables U.S. transit providers to explore the impacts of changing over their systems to battery electric buses, or BEBs. The researchers ran the model for TriMet in Portland, OR, as well, with TriMet results and analysis presented in the final report.  “The interactive visualization platform lets users explore various electric bus deployment budget scenarios, so that transit agencies... Read More

Encouraging Low-Income Households to Make Location-Efficient Housing Choices

Andree Tremoulet
The purpose of this project is to develop and evaluate tools to assist Housing Choice Voucher (HCV) program participants in the Portland, OR, metro region with considering transportation needs and options when making decisions about where to live. The project consists of two elements: development of a set of tools in collaboration with the four metro-area housing authorities, and an evaluation of the effectiveness of the tools. The four housing authorities conceptualized and initiated this pr... Read More