The Oregon Department of Transportation and Portland State University evaluated the seismic vulnerability of state highway bridges in western Oregon. The study used a computer program called REDARS2 that simulated the damage to bridges within a transportation network. It predicted ground motions… Read More

Final report can be found online at: http://www.dot.state.mn.us/guidestar/2006_2010/vii/ConceptofOperations.pdf Appendix A (Background of Mileage-Based User Fees) describes the various approaches to and prior experiences with mileage-based user fees demonstrations in the U.S. and other… Read More

This report reviews the existing state of the art and also the state of the practice of freight performance measurement. Most performance measures at the state level have aimed at evaluating highway or transit infrastructure performance with an emphasis on passenger transportation. Freight… Read More

Project Description: Roughened chutes (simulating natural stream passages) are a cost effective means to provide fish passage at locations where existing culverts and bridges are structurally sound yet do not meet current fish passage rules and regulations. Currently, the construction of roughened… Read More

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… Read More

This report analyzes factors contributing to bus operations safety incidents at TriMet, the transit provider for the Portland Oregon metropolitan region. The analysis focuses on 4,631 collision and non-collision incidents that occurred between 2006 and 2009. Empirical analysis of these incidents… Read More

This report presents a before-after study of bike boxes at 10 signalized intersections in Portland, Oregon. The bike boxes, also known as advanced stop lines or advanced stop boxes, were installed to increase visibility of cyclists and reduce conflicts between motor vehicle and cyclists,… Read More

This report examines the use of alternative local financing mechanisms for interchange and interchange area infrastructure improvements. The financing mechanisms covered include transportation impact fees, tax increment financing, value capture financing, local improvement districts, transportation… Read More

The purpose of the research reported was to identify the current status and needs for general public transportation in Oregon’s rural areas, as well as opportunities and barriers (e.g., funding, governance issues, and leadership) to expanding services over a 20 year period. Oregon is a largely… Read More

One of the most obvious impacts roads have on the natural world is direct mortality to individual animals that attempt to cross roads. A less obvious but likely more important impact of roads on many species is habitat fragmentation. The ability for individuals to travel between subpopulations is… Read More

With growing concerns over the lack of physical activity, increase in greenhouse gases, and other threats to sustainability, planners, engineers, and policy makers are looking for ways to increase the use of alternative modes of travel. Bicycling is one such option. According to the 2001… Read More

Portland’s current bicycle network has brought the city into the national spotlight as a  leader in the provision of cycling infrastructure.  As the city looks forward to 2030 with  ambitions of becoming a truly world‐class bicycling city, it is clear that if the Draft Plan is  fully implemented… Read More