36 Results

Road User Understanding of Bicycle Signal Faces on Traffic Signals

Christopher Monsere
Sirisha Kothuri
Bicycling is increasing in the United States – the number of trips made by bicycle more than doubled from 1.7 billion trips in 2001 to 4 billion in 2009 (NHTS, 2009). With the increase in bicycling rates, there is a critical need for cycling infras ... Read More

Revisiting TODs: How Subsequent Development Affects the Travel Behavior of Residents in Existing Transit-Oriented Developments

Nathan McNeil
Jennifer Dill
Portland State University has worked with the Portland Metro regional government periodically since 2005 to survey occupants of buildings for which developers had received funding from Metro’s Transit-Oriented Development (TOD) Program. The TOD pro ... Read More

Effects of Earthquake-Induced Liquefaction on Bridge Foundations and Transportation Network Using CDSS

Arash Khosravifar
A magnitude 9.0 earthquake by the Cascadia Subduction Zone (CSZ) is believed to be capable of causing widespread soil liquefaction in the Pacific Northwest (PACNW). Affected infrastructures include highway bridges specifically the ones crossing the C ... Read More

Access to Opportunities: Redefining Planning Methods and Measures for Disadvantaged Populations

Arlie Adkins
Stephen Mattingly
This project will be made up of two separate studies that together will investigate areas where transportation planning and engineering can better serve disadvantaged and underserved communities. An interdisciplinary team of planning and public healt ... Read More

Bicycle Planning GIS Tool

Joseph Broach
Although currently only about one percent of US trips are done by bicycle, there is significant geographic variation. Differences across communities, along with much higher cycling rates observed in other places around the world, indicates large pote ... Read More

Evaluating Effects of Earthquake-Induced Liquefaction on Bridge Foundations and Transportation Network Using CDSS

Arash Khosravifar
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 Willa ... Read More

Bridge Seismic Retrofit Feasibility Case Study Utilizing Ductile Fuses

Peter Dusicka
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 impl ... Read More

Understanding the Economic Impacts of Urban Greenway Infrastructure

Jenny Liu
“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 researc ... Read More

Transferability & Forecasting of the Pedestrian Index Environment (PIE) for Modeling Applications

Kelly Clifton
There have been important advances in non-motorized planning tools in recent years, including the development of the MoPeD pedestrian demand model (Clifton et al., 2013, 2015). This tool and others are increasingly requested by governments and agenci ... Read More

The Contribution of Transportation and Land Use to Citizen Perceptions of Livability in Oregon MPOs

Rebecca Lewis
Robert Parker
Livability is a key focus of integrating transportation and land use planning throughout the United States, and the world. Livability is a concept that has been guiding U.S. Department of Transportation (USDOT) policy since 2009, focusing on six prin ... Read More

Smart, Shared, and Social: Enhancing All-Hazards Transportation Recovery Plans with Demand Management Strategies and Technologies

John MacArthur
In September 2015, The Federal Transit Administration (FTA), an agency of the U.S. Department of Transportation (USDOT), awarded a research grant to Portland State University (PSU) as part of its Innovative Safety, Resiliency, and All Hazards Emergen ... Read More

Evaluating Liquefaction Potential of Willamette Silt using Cyclic Direct Simple Shear Test

Arash Khosravifar
A magnitude 9.0 earthquake by the Cascadia Subduction Zone (CSZ) is believed to be capable of causing widespread soil liquefaction in the Pacific Northwest (PACNW). Affected infrastructures include highway bridges specifically the ones crossing the C ... Read More
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