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

Long term evaluation of individualized marketing programs for travel demand management

Jennifer Dill
Cynthia Mohr
This research examines the use of individualized marketing as a transportation demand management (TDM) strategy, using the City of Portland’s SmartTrips program. This research project has two specific aims: (1) to evaluate whether the benefits of these individualized marketing programs continue to at least one year after the project ends; and (2) to examine whether the theory of planned behavior (TPB) can help explain the behavior changes identified. Surveys of residents conducted one or two ... Read More

An Evaluation of the Oregon Department of Transportation’s Environmental Streamlining Efforts: A Focus on CETAS

Connie Ozawa
Jennifer Dill
The Oregon Department of Transportation (ODOT) responded to the federal call in the late 1990s to streamline the National Environmental Policy Act (NEPA) by (1) implementing organizational and procedural changes internal to the agency, (2) funding ODOT-dedicated staff positions in state and federal resource agencies, and (3) convening regular meetings with state and federal agencies with NEPA-related regulatory responsibilities. This latter effort evolved into the CETAS (Collaborative Environ... Read More