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Portland State University

2011

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Full-Text Articles in Urban Studies and Planning

Certified 2011 Population Estimates For Oregon And Counties, Portland State University. Population Research Center Dec 2011

Certified 2011 Population Estimates For Oregon And Counties, Portland State University. Population Research Center

Oregon Population Estimates and Reports

Certified Population Estimates for Oregon and Its Counties. This item also contains estimates for Incorporated Cities/Towns.


Population Forecasts For The Tri-City Servicedistrict, Clackamas County Service District #1, Clackamas County Service District #1 With All Damascus, And The City Of Milwaukie 2010-2040, Portland State University. Population Research Center, Risa S. Proehl, Kanhaiya Vaidya, Bimal Rajbhandary, Kevin Rancik Dec 2011

Population Forecasts For The Tri-City Servicedistrict, Clackamas County Service District #1, Clackamas County Service District #1 With All Damascus, And The City Of Milwaukie 2010-2040, Portland State University. Population Research Center, Risa S. Proehl, Kanhaiya Vaidya, Bimal Rajbhandary, Kevin Rancik

Oregon Population Estimates and Reports

The Tri-City Service District (TCSD) and Clackamas County Service District #1 (CCSD #1), both of Clackamas County, requested that the Population Research Center (PRC) at Portland State University produce long-term population forecasts for each of the two sewer service districts. In addition, CCSD#1 requested that forecasts also be developed to include the entire city of Damascus to account for possible future annexation into its district; and the city of Milwaukie, as CCSD#1 leases services to Milwaukie. The forecast horizon extends 30 years from 2010 to 2040, and projections are produced in 5-year intervals. For the 2010-2015 interval, forecast ...


Tigard-Tualatin School District Enrollment Forecast Update, 2012-13 To 2021-22, Portland State University. Population Research Center, Charles Rynerson, Vivian Siu, Ryan Dann Dec 2011

Tigard-Tualatin School District Enrollment Forecast Update, 2012-13 To 2021-22, Portland State University. Population Research Center, Charles Rynerson, Vivian Siu, Ryan Dann

School District Enrollment Forecast Reports

This report presents the results of a demographic study conducted by the Portland State University Population Research Center (PRC). The study includes analysis of population, housing and enrollment trends affecting the District in recent years, estimates of the impacts of housing development on TTSD enrollment, and forecasts of district‐wide and individual school enrollments for the 2012‐13 to 2021‐22 school years. The Tigard‐Tualatin School District (TTSD) enrolled 12,366 students in Fall 2011, a decrease of 27 students (0.2 percent) from Fall 2010. This is the third consecutive year of K‐12 enrollment loss, but the ...


Our Cities And The City: Incompatible Classics?, Carl Abbott Dec 2011

Our Cities And The City: Incompatible Classics?, Carl Abbott

Urban Studies and Planning Faculty Publications and Presentations

At the end of the 1930s, Americans interested in the fates and futures of their cities had the opportunity to consider two new efforts to summarize urban problems and propose solutions. The first was Our Cities: Their Role in the National Economy, published in 1937 under the auspices of the National Resources Board. The second was The City, a film sponsored by the American Institute of Planners for showing at the New York world's fair in 1939. The report and the film arose out of different analytical traditions, the first from the approach that embedded urban planning within a ...


Portland Public Schools Enrollment Forecasts, 2011-12 To 2025-26, Based On October 2010 Enrollments, Portland State University. Population Research Center, Charles Rynerson, Vivian Siu, David West Nov 2011

Portland Public Schools Enrollment Forecasts, 2011-12 To 2025-26, Based On October 2010 Enrollments, Portland State University. Population Research Center, Charles Rynerson, Vivian Siu, David West

School District Enrollment Forecast Reports

In Fall 2011, Portland Public Schools (PPS) enrolled 46,206 students in grades K-12, an increase of 465 students from Fall 2010. This is the third consecutive year of enrollment growth, following 12 consecutive years of enrollment losses that occurred between 1996- 97 and 2008-09. For the three year period since 2008-09, PPS K-12 enrollment has grown by 1,182 students, or 2.6 percent. In seven of the past eight years, actual K-12 enrollment in the first year of the forecast has been within 300 students of the medium scenario characterized as the “most likely” Enrollment Forecast in reports ...


Health Insurance Coverage Dipped Along With The State, U.S. Economy, Ryan Dann, Jason R. Jurjevich Nov 2011

Health Insurance Coverage Dipped Along With The State, U.S. Economy, Ryan Dann, Jason R. Jurjevich

Publications, Reports and Presentations

A brief examination of the effects that economic downturns have on health insurance coverage in Oregon. Reviews statistical information relating to health coverage, and disparities that exist within the state.


Oregon City School District Enrollment Forecasts, 2011-12 To 2020-21, Portland State University. Population Research Center, Charles Rynerson, Vivian Siu, David West Nov 2011

Oregon City School District Enrollment Forecasts, 2011-12 To 2020-21, Portland State University. Population Research Center, Charles Rynerson, Vivian Siu, David West

School District Enrollment Forecast Reports

This report presents the results of a demographic study conducted by the Portland State University Population Research Center. The study includes analyses of population, housing and enrollment trends affecting the District in recent years, low, middle, and high range forecasts of district‐wide enrollment by grade level for the 2011‐12 to 2020‐21 school years and middle range forecasts of individual school enrollments for the 2011‐12 to 2015‐16 school years. The District’s K‐12 enrollment of 7,751 in 2010‐11 was nearly unchanged from 2009‐10, having declined by just 13 students (0.2 percent ...


Future Flooding Impacts On Transportation Infrastructure And Traffic Patterns Resulting From Climate Change, Heejun Chang, Martin Lafrenz, Il-Won Jung, Miguel A. Figliozzi, Rolando Melgoza, David Ruelas, Deena Platman, Cindy Pederson Nov 2011

Future Flooding Impacts On Transportation Infrastructure And Traffic Patterns Resulting From Climate Change, Heejun Chang, Martin Lafrenz, Il-Won Jung, Miguel A. Figliozzi, Rolando Melgoza, David Ruelas, Deena Platman, Cindy Pederson

Geography Faculty Publications and Presentations

This study investigated potential impacts of climate change on travel disruption resulting from road closures in two urban watersheds in the Portland metropolitan area. We used ensemble climate change scenarios, a hydrologic model, stream channel survey, a hydraulic model, and a travel forecast model to develop an integrated impact assessment method. High-resolution climate change scenarios are based on the combinations of two emission scenarios and eight general circulation models. The Precipitation-Runoff Modeling System was calibrated and validated for the period 1988-2006, and simulated for determining the probability of floods from 2020-2049. We surveyed stream cross sections at five road crossings ...


Design Of A Dynamic Activity Travel Modeling System For Metro, John Gliebe Nov 2011

Design Of A Dynamic Activity Travel Modeling System For Metro, John Gliebe

Urban Studies and Planning Faculty Publications and Presentations

Trip-based models are no longer adequate for some of the more complex questions. They fail to account for time of day sensitivity, dynamic congestion effects, variable pricing and tolls, and the reliability of both highways and transit. Existing activity/tour-based models lack the enhanced temporal element provided by a more dynamic, activity-based microsimulation. DASH is the next-generation model being developed by the Metro Research Center.


A Capping Case Study: Integrating Freight Rail Into A Community Setting, Jeff Schnabel, Tristan Brasseur Nov 2011

A Capping Case Study: Integrating Freight Rail Into A Community Setting, Jeff Schnabel, Tristan Brasseur

TREC Final Reports

This investigation seeks to explore specific design solutions that could potentially enhance the capabilities of heavy rail facilities while increasing their safety and reducing their environmental and community impacts.

Using Portland's Brooklyn Rail Yard as the study site, this case study explored the potential of structural platforms (caps) built above the existing rail yards to provide development space for expanding rail capacity and rail related activities. The potential for capping to reduce /eliminate conflicts between rail and non-rail uses will also be investigated. Finally, the various designs were presented for caps at the rail yard.

Capping projects (the development ...


2010 Transit Oriented Developments Survey, Jennifer Dill Oct 2011

2010 Transit Oriented Developments Survey, Jennifer Dill

TREC Final Reports

This report presents results from surveys of residents at several transit-oriented developments (TODs) in Portland, Gresham, Hillsboro, and Happy Valley. The research complements survey work done in 2005 at sites near three MAX stations in Hillsboro and Beaverton (west of downtown) and the Merrick apartments near the Convention Center in Portland, and in 2007 at 11 sites in the eastside of Portland and Gresham.


Green And Economic Fleet Replacement Modeling: Part I, David S. Kim, Miguel Figliozzi, J. David Porter Oct 2011

Green And Economic Fleet Replacement Modeling: Part I, David S. Kim, Miguel Figliozzi, J. David Porter

TREC Final Reports

The purpose of this study was to gain a better understanding of how equipment replacement decisions are supported with data collection and quantitative models at state DOTs, and to determine if models found in the research literature offer any better decision support when applied to realistic fleet usage and cost data. This study also addressed the current state of equipment replacement at state DOTs with respect to using measurable “green” criteria in replacement decisions, and the development of new quantitative replacement models utilizing such criteria. The responses from 25 state DOTs indicates that there is little consistency in the criteria ...


Combined Seismic Plus Live Load Analysis Of Highway Bridges, Michael H. Scott, Minjie Zhu Oct 2011

Combined Seismic Plus Live Load Analysis Of Highway Bridges, Michael H. Scott, Minjie Zhu

TREC Final Reports

The combination of seismic and vehicle live loadings on bridges is an important design consideration. There are well-established design provisions for how the individual loadings affect bridge response: structural components that carry vertical live loads are designed to remain well within the linear-elastic range while lateral load carrying components are designed to yield under large seismic excitations. The weight of the bridge superstructure is taken in to account as dead load in structural analysis for seismic loads; however, the effects of additional mass and damping of live loads on the bridge deck are neglected. To improve the design of highway ...


Value Of Travel-Time Reliability: Commuters’ Route-Choice Behavior In The Twin Cities, Carlos Carrion-Madera, David Levinson, Kathleen Harder, Miguel Figliozzi Oct 2011

Value Of Travel-Time Reliability: Commuters’ Route-Choice Behavior In The Twin Cities, Carlos Carrion-Madera, David Levinson, Kathleen Harder, Miguel Figliozzi

TREC Final Reports

Travel-time variability is a noteworthy factor in network performance. It measures the temporal uncertainty experienced by users in their movement between any two nodes in a network. The importance of the time variance depends on the penalties incurred by the users. In road networks, travelers consider the existence of this journey uncertainty in their selection of routes. This choice process takes into account travel-time variability and other characteristics of the travelers and the road network. In this complex behavioral response, a feasible decision is spawned based on not only the amalgamation of attributes, but also on the experience travelers incurred ...


North Santiam School District Population And Enrollment Forecasts, 2011-12 To 2025-26, Portland State University. Population Research Center, Charles Rynerson, Vivian Siu Sep 2011

North Santiam School District Population And Enrollment Forecasts, 2011-12 To 2025-26, Portland State University. Population Research Center, Charles Rynerson, Vivian Siu

School District Enrollment Forecast Reports

This report presents the results of a demographic study conducted by the Portland State University Population Research Center (PRC) for the North Santiam School District (NSSD). The three district‐wide Enrollment Forecast scenarios for the period 2011‐12 to 2025‐26 describe a long‐range in which enrollment is either relatively stable (LOW series), growing moderately (MIDDLE series), or growing rapidly (HIGH series). They differ due in their assumptions about migration levels as well as the share of District school‐age residents attending NSSD schools. Assumptions for migration rates by age and sex incorporate observations from the 1990s and 2000s ...


Who’S Home? – A Look At Households And Housing In Oregon, Risa S. Proehl Sep 2011

Who’S Home? – A Look At Households And Housing In Oregon, Risa S. Proehl

Publications, Reports and Presentations

Where we live and who we live with have a huge influence on our everyday lives. Do we live alone or share a home with family or friends? Do we own or rent? How affordable is our housing when compared to our income and how is the value of our house changing? All of these issues shape how we live our lives.

Similarly, housing and households influence the character of neighborhoods and communities. The share of households with children and seniors, the share of households that rent or own, the size of households, and the cost and supply of housing ...


Evaluation Of Safe Routes To School Programs: Qualitative And Quantitative Analysis Of Parental Decision-Making, Lynn Weigand, Noreen Mcdonald Aug 2011

Evaluation Of Safe Routes To School Programs: Qualitative And Quantitative Analysis Of Parental Decision-Making, Lynn Weigand, Noreen Mcdonald

TREC Final Reports

In the United States, walking to school declined from 42% of 5-18 year olds in 1969 to 16% in 20011. The US Department of Transportation has responded to this dramatic decrease by funding the Safe Routes to School program for $612 million in SAFETEA-LU. The program’s funding emphasize infrastructure improvements such as completing sidewalks and adding crosswalks by requiring between 70% and 90% of funding be allocated toward infrastructure. However, recent research shows that 2 of 3 children who currently are driven to school, but live close enough to walk, do so because it is more convenient for parents ...


Periodic Atlas Of The Metroscape: Seeing The Past In The Present - A Snapshot Of The Relationship Between Urban Growth And Transportation, Meg Merrick Jul 2011

Periodic Atlas Of The Metroscape: Seeing The Past In The Present - A Snapshot Of The Relationship Between Urban Growth And Transportation, Meg Merrick

Metroscape

With this edition of the periodic atlas, we explore the waves of growth and changes in urban form that have occurred over the last century in Metro's tri-county region using historic maps and the year-built information provided by Metro's Regional Land Information System (RLIS) for tax lots.


Treatment In Miniature, Lisa Ekman Jul 2011

Treatment In Miniature, Lisa Ekman

Metroscape

This article explores innovations in the design and construction of small scale sewage treatment facilities in the Portland, Oregon metropolitan area, made possible by the development of membrane bioreactor technology.


The Road To Damascus, Liona Tannesen Burnham Jul 2011

The Road To Damascus, Liona Tannesen Burnham

Metroscape

This article explores the dynamics of land use planning, zoning and incorporation in Damascus, Oregon. Residents are divided on whether to remain part of the Metro system of governance, or to unincorporate, but in a recent election, voters overwhelmingly voted to reject the city's comprehensive plan. Damascus is currently exploring the process of removing Damascus from the established urban growth boundary.


Running The Region: An Interview With David Sobolik, Amy Jackson, David Sobolik Jul 2011

Running The Region: An Interview With David Sobolik, Amy Jackson, David Sobolik

Metroscape

An interview with David Sobolik, co-owner of Fit Right Northwest, a running store with locations in Portland and Vancouver, in which he discusses the state of running in Oregon as a sport, exercise and leisure activity.


The Landscape: Cornelius, Michael Burnham Jul 2011

The Landscape: Cornelius, Michael Burnham

Metroscape

A brief snapshot and overview of the community of Cornelius, Oregon, focusing on its efforts to deal effectively with problems arising from declining economic fortunes.


Indicators Of The Metroscape: Health Outcomes, Michael Burnham, Neba Noyan Jul 2011

Indicators Of The Metroscape: Health Outcomes, Michael Burnham, Neba Noyan

Metroscape

A brief analysis of the findings of a study performed by the University of Wisconsin and the Robert Wood Jonson Foundation that ranks more than 3,000 US counties in terms of health and longevity. Emphasis is on ranking for Oregon and southwestern Washington counties.


Evaluation Of Transportation Microenvironments Through Assessment Of Cyclysts' Exposure To Traffic-Related Particulate Matter, Linda A. George, Miguel A. Figliozzi, Christopher M. Monsere, Christine M. Kendrick, Alexander Y. Bigazzi, Adam Moore Jul 2011

Evaluation Of Transportation Microenvironments Through Assessment Of Cyclysts' Exposure To Traffic-Related Particulate Matter, Linda A. George, Miguel A. Figliozzi, Christopher M. Monsere, Christine M. Kendrick, Alexander Y. Bigazzi, Adam Moore

TREC Final Reports

It is well established that vehicles powered by carbon-based fuels (e.g. gasoline, diesel) have a negative impact on air quality, especially in urban centers. Traditionally, air quality conformity studies analyze the macroenvironmental impact of transportation corridors, as they relate to regional air quality management concerns. Urban residents spend a considerable amount of outdoor time in transportation microenvironments as pedestrians, bicycle commuters, people waiting to use public transport, residents and workers situated along roadways, and commuters within vehicles. An emerging area of research has shown that human health impacts within transport microenvironments can be considerable, but have not been well-characterized ...


North Clackamas School District Enrollment Forecasts, 2011-12 To 2020-21, Portland State University. Population Research Center, Charles Rynerson, Vivian Siu, David West Jun 2011

North Clackamas School District Enrollment Forecasts, 2011-12 To 2020-21, Portland State University. Population Research Center, Charles Rynerson, Vivian Siu, David West

School District Enrollment Forecast Reports

This report presents the results of a demographic study conducted by the Portland State University Population Research Center (PRC). The study includes analysis of population, housing and enrollment trends affecting the North Clackamas School District (NCSD) in recent years and forecasts of district-wide and individual school enrollments for the 2011-12 to 2020-21 school years. The District enrolled 17,368 students in Fall 2010, a decrease of 210 students (1.2 percent) from Fall 2009. This was the second consecutive year of decline in enrollment following 22 consecutive years of K-12 enrollment growth between 1986-87 and 2008- 09. This year, for ...


Safety Evaluation Of Curve Warning Speed Signs, Karen K. Dixon, Raul Eduardo Avelar, Ida Schalkwyk Jun 2011

Safety Evaluation Of Curve Warning Speed Signs, Karen K. Dixon, Raul Eduardo Avelar, Ida Schalkwyk

TREC Final Reports

This report presents a review of a research effort to evaluate the safety implications of advisory speeds at horizontal curve locations on Oregon rural two-lane highways. The primary goals of this research effort were to characterize driving operations at rural two-lane highway curve locations where advisory speed signs were present, and to determine to what extent these signs play a role in enhancing safety. Placement of advisory speed signs at horizontal curve locations in the State of Oregon is a practice aided by unique and specific state-level policies and, as such, may vary from nationally accepted procedures. Speed data was ...


2000-2009 County Intercensal Estimates, Portland State University. Population Research Center May 2011

2000-2009 County Intercensal Estimates, Portland State University. Population Research Center

Oregon Population Estimates and Reports

This item only contains Oregon population tables, by county, comparing 2000 and 2009 census data.


A Pivot Point? Economic Slow-Down Affects Oregon’S Migration Flow, Jason R. Jurjevich May 2011

A Pivot Point? Economic Slow-Down Affects Oregon’S Migration Flow, Jason R. Jurjevich

Publications, Reports and Presentations

The combination of three components: fertility, mortality, and migration, collectively lead to population change. Fertility and mortality events in recent history, including escalated fertility levels associated with the ‘baby boom cohort’ and spikes in mortality linked to the Spanish Flu of 1918 for example, have produced demonstrative demographic effects. However, both the unpredictability and ability of migration to produce virtually immediate impacts, often enduring for decades across social, cultural, demographic, and economic landscapes, has long captured the attention of scholars and public policy makers alike. Over the past several decades here in Oregon, migration has undoubtedly shaped the state socially ...


2010 Annual Population Report (April 22, 2011), Portland State University. Population Research Center Apr 2011

2010 Annual Population Report (April 22, 2011), Portland State University. Population Research Center

Oregon Population Estimates and Reports

This item contains Oregon population tables. The certified July 1, 2010 Population estimates were prepared by the Population Research Center prior to the release of the April 1, 2010 Census data.

The 2010 Population Estimates in the included table are based on the Population Research Center data certified as of December 31, 2010.


Central Oregon, Metropolitan Portland Are State’S Fastest-Growing Areas, Jason R. Jurjevich Apr 2011

Central Oregon, Metropolitan Portland Are State’S Fastest-Growing Areas, Jason R. Jurjevich

Publications, Reports and Presentations

Population grew in all regions of Oregon between 2000 and 2010, and the proportion of Oregonians living in the three-county metropolitan Portland region inched up to nearly 43 percent, according to newly released U.S. Census Bureau data. Central Oregon grew by 30.5 percent during the decade — the fastest growth rate of any region of the state. By 2010, about 5.2 percent of Oregon residents, or just over 200,000 people, lived in the area composed of Crook, Deschutes and Jefferson counties (Table 1). The three-county Portland metro region grew 13.6 percent during the decade, the second-fastest ...