25 Results


Arthur C. Nelson
Reid Ewing , Jenny Liu
The United States is moving into a new era of metropolitan development and form. The demographic, economic and finance drivers that made America a suburban nation may have run their course. America will see a shift toward infill and redevelopment. Fa ... Read More

Status and Needs for Public Transportation in Oregon

Jennifer Dill
Margaret Neal , John MacArthur
Status and Needs for Public Transportation in Oregon: sponsored by ODOT ... 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 ... Read More

Understanding the Transit-Dependent Population

Jennifer Dill
Lisa Bates
Public transit in metropolitan areas serves multiple and sometimes competing objectives. Increased attention on "choice" riders and transit as an economic development tool has shifted resources towards suburb-serving rail systems at the expense of in ... Read More

Assessing Transit Agencies' Climate Change Adaptation Needs

John MacArthur
Climate change is posing unique and unprecedented challenges for the Nation's transportation system. Changing weather patterns and their associated physical, financial, and social impacts are affecting or will affect the way transportation pro ... Read More

Bus Safety Performance Monitoring and Analysis

James Strathman
This paper analyzes collision and non-collision incidents that occurred on TriMet’s bus system over a near two-year period. The bus route network was decomposed into stop and line haul segments, and a typology of models was estimated from segment l ... Read More

Livability Performance Metrics for Transit

Marc Schlossberg
Jennifer Dill , Nico Larco
This project sought to understand the relationship between urban form, transit service characteristics, and ridership measured at the stop level. Most previous work in this area has looked at these issues separately, by either linking system performa ... Read More

Transit Bus Fleet Management and Optimization Models Addressing New Engine Technologies and Emissions Constraints

Miguel Figliozzi
Ashley Haire
Due to recent budget and fiscal constraints, it is ever more imperative for transit agencies to manage their fleets in an optimal way. Fleet data have consistently shown that bus operational and maintenance (O&M) per-mile costs increase as buses age. ... Read More

A Study of Headway Maintenance for Bus Routes: Causes and Effects of "Bus Bunching" in Extensive and Congested Service Areas

Miguel Figliozzi
Gerardo Lafferriere , Wu-chi Feng
A healthy and efficient public transit system is indispensable to reduce congestion, emissions, energy consumption, and car dependency in urban areas. The objective of this research is to 1) develop methods to evaluate and visualize bus service relia ... Read More

Extraboard Management

James Strathman
This paper examines extraboard operations and management at TriMet, the transit provider for the Portland Oregon metropolitan area. The extraboard consists of a pool of operators who fill open work resulting from absences and other causes. The paper ... Read More

Rural Transit in Oregon: Current and Future Needs

Jennifer Dill
Margaret Neal
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 servi ... Read More

Needs, Costs, and Funding Alternatives for Transportation Services for Older Adults and People with Disabilities in Oregon

Jennifer Dill
Margaret Neal
Portland State University’s Institute on Aging and Center for Transportation Studies, along with the Population Research Center, were contracted by the Oregon Department of Transportation (ODOT), via the Association of Counties, to project the tran ... Read More
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