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Full-Text Articles in Urban Studies and Planning

Route Segment Level Analysis Of Bus Safety Incidents, James G. Strathman, Sung Moon Kwon Aug 2013

Route Segment Level Analysis Of Bus Safety Incidents, James G. Strathman, Sung Moon Kwon

Urban Studies and Planning Faculty Publications and Presentations

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 level incident, risk exposure, and roadway feature data. The frequency of non-collision incidents – mainly slips, trips and falls – was estimated to be primarily related to associated risk exposure variables. The frequency of collision incidents was also estimated to be related to risk exposure variables, as well as a number of roadway design variables. The findings serve as an initial step ...


Research And Development Of A Land Use Scenario Modeling Tool, John Gliebe, Hongwei Dong, Josh Frank Roll May 2013

Research And Development Of A Land Use Scenario Modeling Tool, John Gliebe, Hongwei Dong, Josh Frank Roll

Urban Studies and Planning Faculty Publications and Presentations

Oregon Department of Transportation’s (ODOT) Transportation Planning and Analysis Unit (TPAU) developed a land use modeling tool called the “Land Use Scenario Developer in R” (LUSDR). LUSDR is a modeling tool, written in the “R” language, that may be used to predict and analyze regional land use changes probabilistically, creating a distribution of possible outcomes. It is designed to be integrated with travel demand modeling programs, making it potentially valuable for analyzing the interaction between transportation and land use when assessing various growth-policy and socioeconomic assumptions. This project is Phase 2 for Research and Development of a Land Use ...


Measuring The Performance Of Transit Relative To Livability, Marc Schlossberg, Jennifer Dill, Liang Ma, Cody Meyer Mar 2013

Measuring The Performance Of Transit Relative To Livability, Marc Schlossberg, Jennifer Dill, Liang Ma, Cody Meyer

Urban Studies and Planning Faculty Publications and Presentations

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 performance (e.g. on-time performance, cost, etc.) to ridership or exploring the connection between urban form (e.g. density) and transit use. This project synthesized these disparate approaches. While transit service characteristics (e.g. frequency, travel time, etc.) are important to help individuals reach their desired destinations, most transit users are pedestrians at the beginning and end of any transit trip. Therefore, focusing on ...


Making Accessibility Analyses Accessible: A Tool To Facilitate The Public Review Of The Effects Of Regional Transportation Plans On Accessibility, Aaron Golub, Glenn Robinson, Brendan Nee Jan 2013

Making Accessibility Analyses Accessible: A Tool To Facilitate The Public Review Of The Effects Of Regional Transportation Plans On Accessibility, Aaron Golub, Glenn Robinson, Brendan Nee

Urban Studies and Planning Faculty Publications and Presentations

The regional transportation planning process in the United States has not been easily opened to public oversight even after strengthened requirements for public participation and civil rights considerations. In the effort to improve the public review of regional transportation plans, this paper describes the construction of a proof-of concept web-based tool designed to analyze the effects of regional transportation plans on accessibility to jobs and other essential destinations. The tool allows the user to analyze disparities in accessibility outcomes by demographic group, specifically income and race, as required by civil rights-related planning directives. The tool makes cumulative-opportunity measures of the ...