Skip to main content
Home

Main navigation

  • About
    • About TREC
    • Our Staff
    • Our Researchers
    • Contact Us
  • News
    • Latest News
    • Join Our Mailing List
    • Media Coverage
  • Events
    • Upcoming Events
    • Study Abroad
    • Past Events
  • Research and Data
    • Researchers
    • All Projects
    • Final Reports
    • PORTAL: Portland-Vancouver
    • BikePed Portal: National
  • Our Students
User account menu
  • Log in

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.

Research Highlights

Reducing VMT, Encouraging Walk Trips, and Facilitating Efficient Trip Chains through Polycentric Development

Reid Ewing
A "polycentric" region is a network of compact developments (centers) that are connected with each other through high-quality transportation options. As the antidote to sprawling suburbs, compact centers can encourage all the things that sprawl discourages: public health, environmental sustainability, social cohesion, and economic diversity. But how can metropolitan planning organizations ensure that their regional plans will actually meet these goals? Polycentric development has been… Read More

The Effects of Commuter Rail on Population Deconcentration and Commuting: A Salt Lake City Case Study

Joanna Ganning
The Wasatch Front is a rapidly growing metropolitan area situated in a region with natural features that extraordinarily limit growth. The Wasatch Front Mountains constrain growth on one side while the Great Salt Lake and the Oquirrh mountains constrain the other. Among the nation’s worst winter inversions occur along the Wasatch Front, whereby high-pressure weather systems trap the air, and all the pollution added by humans, in the valley. The inversions produce red air quality days and… Read More

Research NITC

  • Projects
  • Final Reports
  • NITC Researchers
  • Grant Funding
    • Overview
    • Requirements and Forms
    • Researcher Login
  • Curriculum: K-12 and University

 

© 2025 | National Institute for Transportation and Communities | 503-725-8545 | asktrec@pdx.edu