Urban Studies and Planning Commons^™

A Simulator-Based Analysis Of Engineering Treatments For Right-Hook Bicycle Crashes At Signalized Intersections, Jennifer Warner, David S. Hurwitz, Christopher M. Monsere, Kayla Fleskes

Civil and Environmental Engineering Faculty Publications and Presentations

A right-hook crash is a crash between a right-turning motor vehicle and an adjacent through-moving bicycle. At signalized intersections, these crashes can occur during any portion of the green interval when conflicting bicycles and vehicles are moving concurrently. The objective of this research was to evaluate the effectiveness of four types of engineering countermeasures – regulatory signage, intersection pavement marking, smaller curb radius, and protected intersection design – at modifying driver behaviors that are known contributing factors in these crashes. This research focused on right-hook crashes that occur during the latter stage of the circular green indication at signalized intersections …

Planning Ahead For Livable Communities Along The Powell-Division Brt: Neighborhood Conditions And Change, Lisa K. Bates, Aaron Golub, Devin Macarthur, Seyoung Sung

TREC Final Reports

New transit investments can be a double-edged sword for disadvantaged communities (e.g., those included in environmental justice and Title VI protected classes). Transit investments improve communities’ mobility and access, and may improve health with reduced driving. However, there is also the potential for transit-oriented development (TOD) to spur gentrification and displacement if affordable housing is lost. Understanding transit corridor conditions and change with new infrastructure is important for learning how to mitigate negative effects and support inclusive communities with access to transit for lower-income households. The planning of a new bus rapid transit line along the Powell-Division corridor in Portland-Gresham …

Scappoose, Liza Morehead

Metroscape

A brief snapshot of Scappoose, Oregon, discussing its history, growth and development, and a look to its future.

A New Vision For Timber City Usa, Kerry Politzer

Metroscape

A look at the city of Willamina, Oregon, as it attempts to transition from a timber-reliant town to a sustainable future. Provides a brief history of the community and its economic struggles, and its attempts to foster economic development though tourism, arts and winemaking.

Coordinated Population Forecast For Tillamook County, Its Urban Growth Boundaries (Ugb), And Area Outside Ugbs 2017-2067, Portland State University. Population Research Center, Jason R. Jurjevich, Nicholas Chun, Kevin Rancik, Risa Proehl, Julia Michel, Matt Harada, Charles Rynerson, Randy Morris

Oregon Population Forecast Program

Different parts of the county experience differing growth patterns. Local trends within the UGBs and the area outside them collectively influence population growth rates for the county as a whole.

Tillamook County’s total population has grown slowly since 2000, with an average annual growth rate of less than one-half percent between 2000 and 2010 (Figure 1). However, some of its sub-areas experienced more rapid population growth during the 2000s. Nehalem, Manzanita, and Bay City posted average annual growth rates greater than one percent at 2.5, 1.5, and 1.2 percent, respectively, during the 2000 to 2010 period.

Tillamook County’s positive population …

Coordinated Population Forecast For Columbia County, Its Urban Growth Boundaries (Ugb), And Area Outside Ugbs 2017-2067, Portland State University. Population Research Center, Jason R. Jurjevich, Nicholas Chun, Kevin Rancik, Risa Proehl, Julia Michel, Matt Harada, Charles Rynerson, Randy Morris

Oregon Population Forecast Program

Different parts of the county experience differing growth patterns. Local trends within the UGBs and the area outside them collectively influence population growth rates for the county as a whole.

Columbia County’s total population has grown modestly since 2000, with an average annual growth rate of above one percent between 2000 and 2010 (Figure 1). However, some of its sub-areas experienced more rapid population growth during the 2000s. The most populous UGB, St. Helens, along with the second most populous, Scappoose, posted the highest average annual growth rates at 2.3 and 2.8 percent, respectively, during the 2000 to 2010 period. …

Coordinated Population Forecast For Clackamas County, Its Urban Growth Boundaries (Ugb), And Area Outside Ugbs 2017-2067, Portland State University. Population Research Center, Jason R. Jurjevich, Nicholas Chun, Kevin Rancik, Risa Proehl, Julia Michel, Matt Harada, Charles Rynerson, Randy Morris

Oregon Population Forecast Program

Different parts of the county experience differing growth patterns. Local trends within the UGBs and the area outside them collectively influence population growth rates for the county as a whole.

Clackamas County’s total population has grown steadily since 2000, with an average annual growth rate of 1.1 percent between 2000 and 2010 (Figure 1). However, some of the county’s sub-areas outside of Clackamas County’s Metro boundary experienced more rapid population growth during the 2000s. Sandy and Molalla posted the highest average annual growth rates at 5.6 and 3.8 percent, respectively, during the 2000 to 2010 period.

Clackamas County’s positive population …

Coordinated Population Forecast For Lincoln County, Its Urban Growth Boundaries (Ugb), And Area Outside Ugbs 2017-2067, Portland State University. Population Research Center, Jason R. Jurjevich, Nicholas Chun, Kevin Rancik, Risa Proehl, Julia Michel, Matt Harada, Charles Rynerson, Randy Morris

Oregon Population Forecast Program

Different parts of the county experience different growth patterns. Local trends within the UGBs and the area outside them collectively influence population growth rates for the county as a whole.

Lincoln County’s total population has grown slowly since 2000, with average annual growth rates of 0.3 percent between 2000 and 2010 (Figure 1). However, some of its sub-areas experienced more rapid population growth during the 2000s. Depoe Bay and Siletz posted the highest average annual growth rates at 1.7 and 1.5 percent, respectively, during the 2000 to 2010 period.

Lincoln County’s positive population growth in the 2000s was the result …

Coordinated Population Forecast For Yamhill County, Its Urban Growth Boundaries (Ugb), And Area Outside Ugbs 2017-2067, Portland State University. Population Research Center, Jason R. Jurjevich, Nicholas Chun, Kevin Rancik, Risa Proehl, Julia Michel, Matt Harada, Charles Rynerson, Randy Morris

Oregon Population Forecast Program

Different parts of the county experience differing growth patterns. Local trends within the UGBs and the area outside them collectively influence population growth rates for the county as a whole.

Yamhill County’s total population grew rapidly during the 2000s, with average annual growth rates above one and a half percent between 2000 and 2010 (Figure 1); however, most of its sub-areas experienced more rapid population growth during the 2000s. With the exception of Amity, Sheridan, and Willamina, all other sub-areas grew at a faster rate than the county.

Yamhill County’s positive population growth in the 2000s was largely the result …

Rapid Urban Growth And Land Use Patterns In Doha, Qatar: Opportunities For Sustainability, Vivek Shandas, Yasuyo Makido, Salim Ferwati

Urban Studies and Planning Faculty Publications and Presentations

Amidst chaotic growth of Asian cities, the expansion of urban infrastructure in the Middle East’s Gulf region is arguably outpacing any other region on the planet. Yet we have a limited understanding of the types of urban form or the extent to which this rapid urbanization is giving rise to sustainable patterns of growth. We ask, what is the pace and character of urban growth in one Middle East city, Doha, Qatar. By using remotely sensed imagery from 1987 to 2013, we examined the pace, quality, and characteristics of urban growth. We further use the results to create a typology …

Coordinated Population Forecast For Clatsop County, Its Urban Growth Boundaries (Ugb), And Area Outside Ugbs 2017-2067, Portland State University. Population Research Center, Jason R. Jurjevich, Nicholas Chun, Kevin Rancik, Risa Proehl, Julia Michel, Matt Harada, Charles Rynerson, Randy Morris

Oregon Population Forecast Program

Different parts of the county experience differing growth patterns. Local trends within the UGBs and the area outside them collectively influence population growth rates for the county as a whole.

Clatsop County’s total population has grown slowly since 2000, with an average annual growth rate of less than one half of one percent between 2000 and 2010 (Figure 1). However, some of its sub-areas experienced more rapid population growth. Warrenton, the third most populous UGB, and Gearhart, posted average annual growth rates of 2.0 percent and 1.4 percent, respectively.

Clatsop County’s positive population growth in the 2000s was largely the …

Coordinated Population Forecast For Linn County, Its Urban Growth Boundaries (Ugb), And Area Outside Ugbs 2017-2067, Portland State University. Population Research Center, Jason R. Jurjevich, Nicholas Chun, Kevin Rancik, Risa Proehl, Julia Michel, Matt Harada, Charles Rynerson, Randy Morris

Oregon Population Forecast Program

Different parts of the county experience different growth patterns. Local trends within the UGBs and the area outside them collectively influence population growth rates for the county as a whole.

Linn County’s total population has grown steadily since 2000, with an average annual growth rate of 1.2 percent between 2000 and 2010 (Figure 1). However, some of its sub-areas experienced more rapid population growth while others experienced opposite trends during the 2000s. Millersburg and Harrisburg posted the highest average annual growth rates at 7.1 and 2.6 percent, respectively, during the 2000 to 2010 period. Concurrently, the Linn portions of Gates …

Coordinated Population Forecast For Marion County, Its Urban Growth Boundaries (Ugb), And Area Outside Ugbs 2017-2067, Portland State University. Population Research Center, Jason R. Jurjevich, Nicholas Chun, Kevin Rancik, Risa Proehl, Julia Michel, Matt Harada, Charles Rynerson, Randy Morris

Oregon Population Forecast Program

Different parts of the county experience differing growth patterns. Local trends within the UGBs and the area outside them collectively influence population growth rates for the county as a whole.

Marion County’s total population has grown steadily since 2000, with an average annual growth rate of one percent between 2000 and 2010 (Figure 1). However, some of its sub-areas experienced more rapid population growth while others experienced opposite trends during the 2000s. Donald and Turner posted the highest average annual growth rates at 4.9 and 4.4 percent, respectively, during the 2000 to 2010 period. Concurrently, the Marion portions of Idanha …

Coordinated Population Forecast For Polk County, Its Urban Growth Boundaries (Ugb), And Area Outside Ugbs 2017-2067, Portland State University. Population Research Center, Jason R. Jurjevich, Nicholas Chun, Kevin Rancik, Risa Proehl, Julia Michel, Matt Harada, Charles Rynerson, Randy Morris

Oregon Population Forecast Program

Different parts of Polk County experience differing growth patterns. Local trends within the UGBs and the area outside them collectively influence population growth rates for the county as a whole.

Polk County’s total population has grown moderately since 2000, with an average annual growth rate just below two percent between 2000 and 2010 (Figure 1). However, some of its sub-areas experienced more rapid population growth. The Polk County portion of Salem-Keizer, the most populous UGB, posted an annual average growth rate of 2.8 percent, while both Independence and Monmouth saw average annual growth rates above those of the county, at …

Coordinated Population Forecast For Washington County, Its Urban Growth Boundaries (Ugb), And Area Outside Ugbs 2017-2067, Portland State University. Population Research Center, Jason R. Jurjevich, Nicholas Chun, Kevin Rancik, Risa Proehl, Julia Michel, Matt Harada, Charles Rynerson, Randy Morris

Oregon Population Forecast Program

Different parts of the county experience differing growth patterns. Local trends within the UGBs and the area outside them collectively influence population growth rates for the county as a whole.

Washington County’s total population has grown strongly during the 2000s, with an average annual growth rate of 1.8 percent between 2000 and 2010. However, some of its sub-areas experienced more rapid population growth during the 2000s. North Plains, the most populous UGB in Washington County outside of the Metro boundary, and Banks, posted the highest average annual growth rates at 2.0 and 3.0 percent, respectively, during the 2000 to 2010 …

Coordinated Population Forecast For Benton County, Its Urban Growth Boundaries (Ugb), And Area Outside Ugbs 2017-2067, Portland State University. Population Research Center, Jason R. Jurjevich, Nicholas Chun, Kevin Rancik, Risa Proehl, Julia Michel, Matt Harada, Charles Rynerson, Randy Morris

Oregon Population Forecast Program

Different parts of the county experience different growth patterns. Local trends within UGBs and the area outside them collectively influence population growth rates for the county as a whole.

Benton County’s total population has grown slowly since 2000, with an average annual growth rate of less than one percent between 2000 and 2010 (Figure 1); however, some of its sub-areas experienced more rapid population growth during the 2000s. The Benton County portion of Albany and Adair Village posted the highest average annual growth rates at 2.4 and 4.7 percent, respectively, during the 2000 to 2010 period while all other sub-areas …

China's Motorization Wave And The Place Of Emerging Technologies, Christopher Cherry

PSU Transportation Seminars

E-bikes, E-Cars, Carshare, Bikeshare, and Micro-EVs in China have shaken up the traditional motorization pathways that have occurred in developing countries in the past. The combination of emerging vehicle technologies, urban and environmental constraints, and heavy-handed policy make China's motorization processes unique in the world—but how China motorizes has far-reaching impacts based on sheer volume of vehicles and population.

This seminar discusses the results of a six-year NSF CAREER project to explore China's motorization processes, combining behavioral and environmental modeling approaches to assess the impacts of emerging vehicle technologies on motorization and ultimately environmental sustainability. The focus is mostly on …

Silver Falls School District Enrollment Forecast 2017-18 To 2026-27, Portland State University. Population Research Center, Charles Rynerson, Scott Stewart, Xi Yang

School District Enrollment Forecast Reports

This report presents a series of three scenarios of district-wide enrollment forecasts by grade level for the Silver Falls School District (SFSD) for the 10-year period between 2017-18 and 2026-27. Each enrollment forecast scenario relates to population forecasts that incorporate different assumptions about growth within the District, with the primary differences being the contribution of net migration to the District’s population and age distribution. Individual school forecasts consistent with the middle series scenario are also presented for the 10-year period.

Measuring The Impacts Of Social Media On Advancing Public Transit, Jenny H. Liu, Xuegang Ban, O. A. Elrahman

TREC Final Reports

This project is a collaboration between Portland State University (PSU) and the Center for Infrastructure Transportation & Environment (CITE) at Rensselaer Polytechnic Institute seeking to develop performance measures for assessing the impacts of social media on promoting public transit. Revolutionary changes have occurred in the communication landscape, and there has been a rapid diffusion of social media use as a means of communicating transit information to the public. Significant resources are being directed to the use of social media in communication, yet little effort exists that measures the impacts of these popular vehicles of communication. Rarely studied is the role …

Land Use And Active Travel: A Complex Relationship, Steven R. Gehrke

TREC Project Briefs

While it’s accepted that mixed-use development promotes active travel, researchers don’t have a consensus on exactly how land use determines people’s travel patterns.

Focusing On Equity In Regional Plans, Kristine M. Williams

TREC Project Briefs

Metropolitan planning organizations (MPOs) have long been required to consider the equity implications of their regional transportation plans and processes.

Towards Systematic Prediction Of Urban Heat Islands: Grounding Measurements, Assessing Modeling Techniques, Jackson Voelkel, Vivek Shandas

Urban Studies and Planning Faculty Publications and Presentations

While there exists extensive assessment of urban heat, we observe myriad methods for describing thermal distribution, factors that mediate temperatures, and potential impacts on urban populations. In addition, the limited spatial and temporal resolution of satellite-derived heat measurements may limit the capacity of decision makers to take effective actions for reducing mortalities in vulnerable populations whose locations require highly-refined measurements. Needed are high resolution spatial and temporal information for urban heat. In this study, we ask three questions: (1) how do urban heat islands vary throughout the day? (2) what statistical methods best explain the presence of temperatures at sub-meter …

Breaking Barriers To Bike Share: Insights From Residents Of Traditionally Underserved Neighborhoods, Nathan Mcneil, Jennifer Dill, John Macarthur, Joseph Broach, Steven Howland

TREC Final Reports

Evidence has shown that higher income and white populations are overrepresented in both access to and use of bike share. Efforts to overcome underserved communities’ barriers to access and use of bike share have been initiated in a number of cities, including those working with the Better Bike Share Partnership (BBSP) to launch and test potentially replicable approaches to improve the equity outcomes. This report describes findings from a survey of residents living near bike share stations placed in underserved communities of select BBSP cities: Philadelphia, Chicago, and Brooklyn. These were neighborhoods targeted for focused outreach related to BBSP programs, …

Annual Metro Regional Trail Count And Why Local Extrapolation Factors Matter, Geoff Gibson

PSU Transportation Seminars

Metro, Portland's regional governing agency, conducts annual two-hour counts along its regional trail every September. This upcoming fall (2017) will be the 10th year that the counts have been held, which means we at Metro can finally start seeing noticeable, long-lasting trends in the regional trail network. Perhaps more importantly, we are seeing how these data have directly impacted investments in future trail, bicycle, and pedestrian projects.

This seminar will cover the history of the program, details of how it's conducted and why it's conducted that way, how data are used (including an inside look at future iterations of Metro's …

Webinar: Developing Practical Dynamic Evaluation Methods For Transportation Structures, Charles Riley

TREC Webinar Series

Deteriorating transportation infrastructure is constantly in the news. Government agencies at all levels are pursuing methods to monitor structural health, so that they can prioritize repairs. In Oregon, the Cascadia Subduction Zone megathrust earthquake looms as a significant natural hazard for which our transportation network is ill-prepared. The Oregon Department of Transportation (ODOT) estimates that it will take around $2.6 billion over seven years to repair or replace many of the existing bridges in the state’s network to maintain lifeline routes after a Cascadia event. Funding for the scenarios envisioned by ODOT is not forthcoming, and the project …

Inequities In Urban Mobility In Portland: Understanding Community Vulnerability And Prospects For Livable Neighborhoods, Amy Lubitow

PSU Transportation Seminars

Gentrification and development are changing the face of many Portland neighborhoods. This talk will draw on data from focus groups and participatory mapping research with residents in SE and North Portland neighborhoods. The presentation will share findings on the patterns of movement reported by residents in gentrifying neighborhoods and will offer ideas and perspectives on how to plan for a sustainable future for all Portlanders.

Network Congestion Effect Of E-Hailing Transportation Services, Xuegang Ban

PSU Transportation Seminars

E-hailing plays a key role in emerging transportation services such as ridesourcing, ridesharing and taxis, among others. This seminar will present a general economic model to analyze the congestion effect of e-hailing services in a transportation network.

The model can help analyze customers’ choices of different modes, based on their value of time and the charging schemes of different services, as well as the overall impact of the services to network level congestion.

The Role Of Financial Literacy Among University Transfer Students And The Impact On Perceived Social Mobility, Melissa Pyle

Student Research Symposium

This study will examine financial literacy among university transfer students at Portland State University. The main objective is to assess the financial knowledge and behaviors of transfer students and how that impacts perceived social mobility. The goal is to provide conclusions and resource implications regarding the specific needs of university transfer students through a sociological lens. In partnership with The Financial Wellness Center (FCW) at Portland State University it is hypothesized the results of this study will better equip universities and transfer students to work together to ensure both educational success, upward mobility, and fiscal responsibility.

Peer-To-Peer Carsharing: Short-Term Effects On Travel Behavior In Portland, Or, Jennifer Dill, Nathan Mcneil, Steven Howland

TREC Final Reports

Peer-to-peer (P2P) carsharing is a relatively new concept in the U.S. Enabled by recent internet and mobile technology development, P2P carsharing generally involves a facilitating company connecting private vehicle owners to people who are interested in renting a vehicle. P2P carsharing has many things in common with business-to-consumer (B2C) carsharing services. Consumers join the service to rent vehicles on a short-term basis from locations dispersed throughout a certain area. Both services may allow households to reduce their private car ownership. However, P2P carsharing differs substantially from other models in that there are two distinct sets of consumers: those who rent …

Evaluating The Distributional Effects Of Regional Transportation Plans And Projects, Kristine Williams, Aaron Golub

TREC Final Reports

Metropolitan planning organizations (MPOs) have long been required to consider the equity implications of their regional transportation plans and processes. Funded by the National Institute for Transportation and Communities, this research aims to provide additional guidance to MPOs on how to evaluate distributional equity in regional plans and projects. The report begins with an overview of federal requirements related to equity in transportation planning. We then synthesize contemporary methods for measuring transportation equity and the distributional effects of plans and projects from a review of the literature and MPO plans and studies. The report concludes with exploratory case studies of …