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

Vehicle acquisition and disposal/ Multi-modal Household Vehicle Fleets and Residential Location Choices

Roger Chen
Vehicle availability significantly affects household travel behaviors and consequently affects the requirements for modeling and forecasting of household travel decisions under future or alternative scenarios. Household vehicle fleets are not acquired instantaneously, but evolve over time as a result of fleet transactions, which include vehicle (i) disposal or retirement, (ii) replacement and (iii) acquisition decisions. Parallel to this forecasting need, is the increasing diversification of ... Read More

Planning ahead for livable communities along the Powell-Division BRT: neighborhood conditions and change

Lisa Bates
Aaron Golub
New transit investments can be a double-edged sword for disadvantaged communities (e.g. those included in environmental justice and Title VI potected classes). Transit investments improve community’s mobility and access and may improve health with reduced driving nearby. However, there is also the potential for transit-oriented development to spur gentrification and displacement if affordable housing is lost. Understanding transit corridor conditions and change with new infrastructure is impo... Read More