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

This project was designed to outline transportation chapters of a planned written history of Oregon land use planning, written in ways that would make the transportation planning profession relevant to a popular audience. The writing would focus on stories from the profession, and on historical… Read More

This report describes the preliminary work to develop the Oregon Traffic Safety Data Archive (OrTSDA). The mission of OrTSDA is to “build the knowledge base of traffic safety data in Oregon”. The archive hopes to become a valuable traffic safety data resource with researchers, practitioners, and… Read More

This investigation seeks to explore specific design solutions that could potentially enhance the capabilities of heavy rail facilities while increasing their safety and reducing their environmental and community impacts. Using Portland's Brooklyn Rail Yard as the study site, this case study… Read More

Increasing freight volumes are adding pressure to the Oregon transportation system. Monitoring the performance of the transportation system and freight movements is essential to guarantee the economic development of the region, the efficient allocation of resources, and the quality of life of all… Read More

Congestion is a common phenomenon in medium and large cities worldwide. Reliability of freight movement in urban areas is an important issue for manufacturing or service companies whose operation is based on just-in-time approaches. These companies tend to provide highvalue or time-sensitive… Read More

This paper studies approximations to the average length of Vehicle Routing Problems (VRP). The approximations are valuable for strategic and planning analysis of transportation and logistics problems. The research focus is on VRP with varying number of customers, demands, and locations. This… Read More

The objectives of this research were to retrospectively study the feasibility for using truck transponder data to produce freight corridor performance measures (travel times) and real-time traveler information. To support this analysis, weighin-motion data from each of the twenty-two stations in… Read More

Traffic oscillations are typical features of congested traffic flow that are characterized by recurring decelerations followed by accelerations (stop-and-go driving). The negative environmental impacts of these oscillations are widely accepted, but their impact on traffic safety has been debated… Read More