In an effort to increase the seismic resiliency of our transportation network, a performance centric retrofit measure has been developed as part of State funded research and evaluated through to large scale laboratory setting. With an eye toward implementation, this technology transfer proposal… Read More

Cascadia Subduction Zone (CSZ) is expected to produce a Magnitude 9 earthquake that can adversely affect the transportation networks in the Pacific Northwest (PACNW). This includes highway bridges specifically the ones crossing the Columbia and Willamette rivers and along the I-5 corridor. Of… Read More

Portland’s West Hills in the Tualatin Mountains are home to approximately 22,200 residents and 10,000 households, with supporting roads, utilities, and businesses (2010 Census data). The Tualatin Mountains are covered in wind deposited soils (“loess”) that the Oregon Department of Geology and… Read More

The City of Portland has been looking to understand the mobility profiles and the associated carbon impacts of different communities in the region. In addition, the City is evaluating its electric vehicle strategy, including placement of charging infrastructure based on locations that will have the… Read More

This report is the third in a series of reports examining issues in Oregon related to changes in posted speed limits. In 2004, a comprehensive report, “Impacts and Issues Related to Proposed Changes in Oregon’s Interstate Speed Limits1 ,” was prepared. An update to the most important literature in… Read More

Performance-based planning helps local and state decision makers to understand the potential impacts of policy decisions, supporting cost-effective investments and policy choices that can help achieve policy goals. In addition, it can enable monitoring of progress and facilitate needed adjustments… Read More

Cycling and walking are sustainable modes of transportation which improve community livability, but these modes have not been studied with the quantitative rigor applied to motor vehicle travel. This research aims to change that by improving bicycle and pedestrian traffic monitoring data quality… Read More

Regular assessment and improvement of the performance of public transit systems are essential for transit service providers given limited funding and growing public needs. Performance evaluation can help transit agencies identify underperforming services, plan for potential investments, justify… Read More

Oregon Tradeswomen Inc, in partnership with Green Dot Etcetera, Oregon construction contractors, BOLI/ODOT, and PSU researchers, is piloting an adaptation of the Green Dot bystander intervention program for the highway construction trades. This program aims to reduce harassment on construction job… Read More

The market for electric vehicles (EVs) is changing dramatically in the United States. Federal and state policies have been adopted to promote research and development in EV technology and to increase the number of EVs available in order to support increasing rates of EV ownership. The state of… Read More

This research aimed to develop an understanding of the safety and operational implications of using the flashing yellow arrow (FYA) in permitted and protected/permitted right turn (PPRT) operations to maximize safety and efficiency. This report includes a review of more than 50 scientific and… Read More

“City Greenways” is a concept proposed as a part of Portland’s 2035 Comprehensive Plan, which calls for a citywide network of park-like pedestrian and bicycle friendly streets crisscrossing the city at roughly three-mile intervals. This research establishes several approaches to measure the… Read More