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Total Results: 322

Washington State Pedestrian and Bicycle Miles Traveled Project

Krista Nordback
Estimates of vehicle miles traveled (VMT) drive policy and planning decisions for surface transportation. No similar metric is computed for cycling and walking. What approaches could be used to compute such a metric on the state level? This report discusses three such approaches, identifies the… Read More

Shared Space and Bicyclists

Allison Duncan
Shared space is a traffic calming technique and design concept. The technique is relatively new, and the majority of existing research concerns pedestrians only. This mixed methods study will be international in scope focusing on intersections in England. The goal of this dissertation is to… Read More

Evaluation of Speed Activated Displays on Curves

Christopher Monsere
This project is a national demonstration project to evaluate the effectiveness of dynamic speed signs on high crash curves on two-lane rural roadways in seven states to decrease speeds and reduce crashes. The team has installed and is monitoring signs in Texas, Washington, Florida, Arizona, Ohio,… Read More

Evaluating the Use of Crowdsourcing as a Data Collection Method for Bicycle Performance Measures and Identification of Facility Improvement Needs

Miguel Andres Figliozzi
Although there is a great body of knowledge and practice to measure motorized vehicle highway infrastructure performance levels and activity, the same cannot be said about bicycle infrastructure performance and network usage. Although the Oregon Department of Transportation (ODOT) collects some… Read More

Vehicle acquisition and disposal/ Multi-modal Household Vehicle Fleets and Residential Location Choices

Roger Chen
Vehicle availability significantly affects household travel behaviors and consequently affects the requirements for modeling and forecasting of household travel decisions under future or alternative scenarios. Household vehicle fleets are not acquired instantaneously, but evolve over time as a… Read More

Multiday GPS Travel Behavior Data for Travel Analysis: The Effect of Day-to-Day Travel Time Variability on Auto Travel Choices

Jennifer Dill
This project explored the potential of archived multi-day GPS data to expand the understanding of travel-time reliability. While reliability is often observed and considered at the system or segment level, travel-time uncertainty is also experienced at the household and trip level. Any move toward… Read More

Bridge Seismic Retrofit Measures Considering Subduction Zone Earthquakes

Peter Dusicka
Seismic retrofit implementation in the state has been minimal due to a lack of funding, and when retrofitshave occurred, the scopewas typically limited to phase I retrofit by providing restrainers for keeping the superstructure from sliding from the supports. Such retrofit measures are effective… Read More

2014 Transit Oriented Developments Survey

Jennifer Dill Nathan McNeil
This report presents results from surveys of residents at several transit-oriented developments (TODs) in Portland, Hillsboro, Tigard, and unincorporated Clackamas County. The research complements our previous survey work for Metro done at eight TODs in 2010 and 11 TODs in 2007. TODs included in… Read More

Understanding Market Segments for Current and Future Residential Location and Travel Choices

Kelly Clifton Jenny Liu , Roger Chen
This project aims to examine the connections between residential location choices and travel at the household level with an emphasis on identifying current residents' preferences for their future housing, neighborhood and transportation choices (collectively referred to as lifestyle choices) that… Read More

Safety Effectiveness of Pedestrian Crossing Enhancements

Christopher Monsere Miguel Andres Figliozzi
The objective of this research is to estimate the effectiveness of PCEs on multimodal safety in Oregon design contexts to derive CMFs calibrated to Oregon (i.e. not only pedestrian crashes but also motorized vehicles and bicycle crashes in the vicinity). This research will carefully consider the… Read More

Evaluation of Bicyclists Exposure to Traffic-Related Air Pollution along Distinct Facility Types

Miguel Andres Figliozzi James Pankow
While bicyclists and other active travelers obtain health benefits from increased physical activity, they also risk an uptake of traffic-related air pollution. But pollution uptake by urban bicyclists is not well understood due to a lack of direct measurements and insufficient analysis of the… Read More

Application of Interactive Video Sensing and Management for Pedestrian and Bicycle Safety Studies

Wu-chi Feng Christopher Monsere , Miguel Andres Figliozzi
As video data collection and storage technologies become ubiquitous and inexpensive, transportation agencies struggle to process and extract "intelligence" or useful information from growing libraries of archived video data. In some cases useful video is lost because agencies cannot justify the… Read More

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