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

Effectiveness of Transportation Funding Mechanisms for Achieving National, State and Metropolitan Economic, Health and Other Livability Goals

Rob Zako Rebecca Lewis
The Moving Ahead for Progress in the 21st Century Act (MAP-21), adopted in 2012, established national performance goals for Federal-aid highways in seven areas. (Federal Highway Administration, n.d.) MAP-21 requires states and metropolitan planning organizations (MPOs) to establish performance-based planning processes, set targets (performance measures), and link planning and funding to these targets. States and MPOs have different mechanisms for allocating funding from various sources to… Read More

Improving Bicycle Crash Prediction for Urban Road Segments

Sirisha Kothuri Krista Nordback , Wesley Marshall
The 2010 Highway Safety Manual (HSM) provides methods for predicting the number of motor vehicle crashes on various roadway facilities (AASHTO, 2010). However, it includes only a simplistic method for predicting the number of bicycle-related crashes. The research team investigated the bicycle-specific crash data in eight potential study areas around the U.S.: Arlington, VA (city/county); Bellingham, WA (city); Boulder, CO (city); Denver, CO (city/county); Minneapolis and St. Paul, MN (cities);… Read More