Urban Studies and Planning Commons^™

A Simple Method For Estimation Of Queue Length, S. P. Anusha, Lelitha Devi Vanajakshi, Anuj Sharma

Department of Civil and Environmental Engineering: Faculty Publications

Urban arterials are characterized by frequent intersections. Queue length and delay are the two primary measures of performance of intersection. These measures play a primary role in determining the arterial performance. This article presents a methodology to determine the number of vehicles in queue at a signalized intersection for under saturated traffic conditions. The results obtained were validated using actual values that are manually extracted. The root-mean-square error is of the range 1.3 vehicles for estimation of number of vehicles in queue. The various aspects that have to be considered in accurate estimation of performance measures are also discussed.

Segregation, Inequality, Demographic Change, And School Consolidation, William England, Edmund T. Hamann

Great Plains Research: A Journal of Natural and Social Sciences

We describe a rural/micropolitan example of the intertwining of school consolidation and demographic change with exacerbated segregation and inequality. To do this we consider Dawson County, Nebraska, which hosts the state's most Latino/a school district (Lexington) and which saw its number of schools decline from 37 to 19 during this century's first decade, and the number of local school districts lessened from 18 to 5. In particular, we call attention to the irony that consolidation was pursued with an explicit call for more equality in schooling in Dawson County (Swidler 2013) and yet population concentrations and variation in expenditures seemed …

Science Fiction Cities, Carl Abbott

Urban Studies and Planning Faculty Publications and Presentations

This essay argues that cities can also be front and center as vividly imagined worlds whose characteristics play active roles that help to structure the arc of the story, forcing and constraining the choices that the characters make.

Reconstructing Oregon’S Frankentax: Improving The Equity, Financial Sustainability, And Efficiency Of Property Taxes, City Club Of Portland (Portland, Or.)

City Club of Portland

No abstract provided.

From Transit Stop To Urbanity Node: Field Audit For Measuring Livability At The Transit Stop, Deni Ruggeri

TREC Final Reports

This research proposal addresses issues of livability at the transit stop. American transit systems have historically been “shoehorned” into existing street networks designed predominantly for cars and trucks. While much research exists on livability and walkability in the context of urban and suburban streets and blocks, bus stops are greatly understudied. This research focused on bus stops and aimed at analyzing their performance in terms of livability, with particular emphasis on perceptions. Our definition of livability was expanded to include considerations of safety and maintenance, cleanliness, imageability and vitality, which have been shown to affect people’s perceptions of livability and …

Health Promotions 2.0: The Future Of Wellness Programs In America, Rajiv Kumar

Center for Policy Research

In no small part because of technology, the way we live and work is being transformed. I believe that those of us who are interested in health policy can play an important role in guiding that transformation. I submit to you that unhealthy living is a social issue; that conditions such as obesity and diabetes are social diseases and that their prevalence is a social problem. If we have a social problem, then we need a social solution. I believe part of that solution can be found in the worksite health promotion and wellness programs that have taken root across …

Using Indicators Projects As Prompts For Exploring Equity: A Case Study Of Greater Portland Pulse, Meg Merrick, Diane Besser, Shelia A. Martin

Institute of Portland Metropolitan Studies Publications

This paper describes the process that the Greater Portland Pulse (GPP) initiated to incorporate the measurement of progress toward social equity into the project. While equity may appear to be a widely accepted priority for communities, the GPP process created a dialogue that was sometimes contentious but also profoundly educational for the participants revealing some of the complexities, not only of the issue of equity, but the challenges (particularly the inadequacy of available data) and trade-offs that are inescapable when using conventional data sets.

Additionally, this paper discusses some of the consequences of a process that, while incorporating equity values …

An Anthropology Of Urbanism: How People Make Places (And What Designers And Planners Might Learn From It), Brooke D. Wortham-Galvin

Institute for Sustainable Solutions Publications and Presentations

In their word play on what design praxis might succeed the New Urbanism movement in the United States, the July 2013 article “Newest Urbanism” in the Architect introduced to the uninitiated the concept of tactical urbanism. Defining tactical urbanism as "temporary, cheap, and usually grassroots interventions—including so-called guerrilla gardens, pop-up parks, food carts, and 'open streets' projects—that are designed to improve city life on a block-by-block, street-by-street basis," the article claims that it took this approach to shaping the city less than a decade to mainstream into the practices of US cities and firms alike. While Architect used the term …

Durability Assessment Of Recycled Concrete Aggregates For Use In New Concrete: Phase I - Revised, Jason H. Ideker, Matthew P. Adams, Jennifer Tanner, Angela Jones

TREC Final Reports

The primary goal of this research project was to investigate the long-term durability of concrete incorporating recycled concrete aggregate (RCA) through accelerated laboratory testing. Overall it was found that modifications to standard aggregate testing and characterization standards were necessary for testing RCA. This included modifications to standard tests including ASTM C 128, C 305 and C 1260. It was found that the potential for alkalisilica reactivity did exist for new concrete containing RCA. The characteristics of the RCA also had a profound effect on ASR related expansion. RCA with a higher content of reactive coarse or fine aggregate (compared to …

Influence Of Road Cross Section On Access Spacing, Karen K. Dixon, Yanfen Zhou, J. L. Gattis

TREC Final Reports

This report presents a study on the influences of select cross-sectional-related design elements (specifically median configurations and bicycle lanes) and their impact on crash severity and type, as well as the associated driver gap acceptance for turning maneuvers at midblock driveway locations on urban arterials. The primary goal of this proposed research is to better understand how the median and bicycle lane configurations can influence safety and operations at driveway locations. The research team utilized crash data, traffic data, and roadway information from driveway locations in the U.S. states of Oregon, Arkansas and Oklahoma. The project team supplemented the data …

Making Streets Into Complete Streets: An Evidence-Based Design Manual, Marc Schlossberg, John Rowell

TREC Final Reports

The predominant approach toward street function on major roads in the United States is to emphasize mobility and throughput of vehicles. The “Complete Streets” movement challenges some of this paradigm, emphasizing that streets should accommodate multiple modes of travel and should often be considered destinations themselves. Often, efforts to transform streets into Complete Streets face resistance from both professional communities of traffic engineers and from the public that their design will reduce throughput and vehicle flow..Complete Streets advocates, in some cases, counter that while their designs often create pedestrian and cycling space from areas that were previously occupied by automobiles, …

Data-Driven Illustrations For Climate Smart Communities Scenarios, Nancy Yen-Wen Cheng, Kim Ellis, Molly Vogt, Clint Chiavarini, Justin Houk, Brian Lockyear, Boyce Postma, Peggy Morell

TREC Final Reports

Public investment in transit and streetscape improvements can encourage private development, and subsequently increase transit ridership and reduce pollution. Portland, OR’s Metro regional government has developed investment scenarios designed to reduce light vehicle carbon emissions. Adopting a regional scenario requires public review and consultation with local governments who will implement the comprehensive plans and land-use regulations. Decision makers and residents need to understand potential benefits: ways in which targeted investment could generate more livable urban spaces while reducing greenhouse gases. Illustrations can show how the investments could shape the pedestrian experience through trees, street furniture, buildings, open spaces, etc.

This …

The Trajectory Of Warwick Junction As A Site Of Inclusivity In Post-Apartheid South Africa, Kara Van Schilfgaarde Van Schilfgaarde

Independent Study Project (ISP) Collection

Warwick Junction, a thriving trading hub in the inner city of Durban, has long been considered one of the best examples of collaborative urban management practices between the local government and informal traders. In a post-apartheid South Africa, there was a national desire to transform the old systems of governance, which in Warwick translated to city government institutions making an effort to include informal traders in the policymaking and management processes. This paper tracks the history of Warwick Junction, using its oppressive past to frame common perspectives of informal trade. It considers the legacy of the post-apartheid era South Africa, …

Well Traveled: Strong Relationships And Unique Challenges Are Revealed In “Driving Richmond: Stories And Portraits Of Grtc Bus Drivers”, Laura Browder

English Faculty Publications

Here’s a well-kept secret: The regional GRTC Transit System is among the most progressive organizations in Richmond. The nonprofit plays a major role in reducing pollution, easing traffic congestion and connecting people to jobs. Its reform-minded leadership is eager to play a larger role. Its unionized bus drivers, which included some of the first waves of black and female drivers, help hold it all together.

And those drivers love their jobs — to a degree unusual for workers in any profession. That’s what I learned through interviews with 16 current and former drivers this summer for an exhibition at the …

Issue Brief: Auditing Your Town's Development Code For Barriers To Sustainable Water Management, New England Environmental Finance Center

Sustainable Communities Capacity Building

This issue brief is intended for town officials who want to understand how development regulations in their community affect local water resources. Municipal development codes – the set of regulations that control the built environment – can have a great influence on the availability of clean and healthy water for drinking, recreation, and commercial uses. This in turn affects the community’s social, environmental, and economic vitality.

Comprehensive plans, zoning codes, and building standards are just a few examples of regulations that intentionally or unintentionally regulate the way water is transported, collected and absorbed. Regulations that produce dispersed development or large …

Issue Brief: Saving By Mitigating, University Of Louisville, New England Environmental Finance Center

Sustainable Communities Capacity Building

Natural disasters can cause loss of life, inflict damage to buildings and infrastructure, and have devastating consequences for a community’s economic, social, and environmental well-being. Hazard mitigation means reducing damages from disasters.

Local governments have the responsibility to protect the health, safety, and welfare of their citizens. Proactive mitigation policies and actions help reduce risk and create safer, more disaster-resilient communities. Mitigation is an investment in your community’s future safety, equity, and sustainability.

Modeling Of Dc Link Capacitor Current Ripple For Electric Vehicle Traction Converter, Lei Jin, Julia Zhang

TREC Final Reports

Contemporary Full Hybrid Electric Vehicle/Plug-in Hybrid Electric Vehicle/Battery Electric Vehicle (FHEV/PHEV/BEV) products use one or more DC/AC power converters, also known as traction inverters, to convert the DC voltage/current provided by the traction battery to the AC voltage/current to drive the traction motor(s). Large and bulky DC link capacitors are used at the input of the traction inverter to provide a smooth DC input voltage. Those DC link capacitors, occupying almost 50% of the space in the whole package, can contribute to more than 20% of the total cost of the traction inverter. They are generally over designed to assure …

Multimodal Data At Signalized Intersections: Strategies For Archiving Existing And New Data Streams To Support Operations And Planning & Fusion And Integration Of Arterial Performance Data, Kristin A. Tufte, Christopher M. Monsere, Sirisha Murthy Kothuri, Carl Scott Olson

TREC Final Reports

There is a growing interest in arterial system management due to the increasing amount of travel on arterials and a growing emphasis on multimodal transportation. The benefits of archiving arterial-related data are numerous. This research report describes our efforts to assemble and develop a multimodal archive for the Portland-Vancouver region. There is coverage of data sources from all modes in the metropolitan region; however, the preliminary nature of the archiving process means that some of the data are incomplete and samples. The arterial data sources available in the Portland-Vancouver region and that are covered in this report include data for …

An Activity-Based Learning Module For Human Factors In The Introductory Transportation Engineering Course, David Hurwitz

TREC Final Reports

This project summary report describes the execution of OTREC Project #517 (An ActivityBased Learning Module for Human Factors in the Introductory Transportation Engineering Course)

Improving The Representation Of The Pedestrian Environment In Travel Demand Models, Phase I, Kelly J. Clifton, Patrick Allen Singleton, Christopher Devlin Muhs, Robert J. Schneider, Peter Lagerwey

Civil and Environmental Engineering Faculty Publications and Presentations

There is growing support for improvements to the quality of the walking environment, including more investments to promote pedestrian travel. Metropolitan planning organizations (MPOs) are improving regional travel demand forecasting models to better represent walking and bicycling and to expand the evaluative capacity of models to address policy-relevant issues like air quality, public health, and the smart allocation of infrastructure and other resources. This report describes an innovative, spatially disaggregate method to integrate walking activity into trip-based travel models. Using data for the Portland, OR, metropolitan area, the method applies trip generation at a new micro-scale spatial unit: a 264-foot-by-264-foot …

The Formalities Of Informal Urbanism: Technical And Scholarly Knowledge At Work In Do-It‐Yourself Urban Design, Gordon Douglas

Faculty Publications, Urban and Regional Planning

Among the numerous ways people make illegal or unauthorized alterations to urban space, of particular interest in recent years have been the creative, local, and often anonymous efforts at informal but functional “improvement” to the built environment where the state or property owners have failed to act – practices I call “do-it-yourself urban design.” Authorities, planners, and community members alike rightfully wonder about the meanings of these actions, and the questions they raise about rights, responsibilities, benefits, and consequences. Building from alarger qualitative study on DIY urban design across eleven cities, this paper focuses on the motivations, methods, and self-perceptions …

Overlooked Destinations: Suburban Nodes, Centers, And Trips To Strips, Nico Larco, Robert Parker

TREC Final Reports

This study looks at travel to typical suburban commercial strips by residents living within one-third of a mile of the strip by focusing on six sites – four in the Portland, OR., metro area and two in the Atlanta, GA., metro area. The study mapped pedsheds around the commercial strips in these sites and found significant increases in network extents when formal and informal pedestrian paths were added to street centerline data. Informal networks such as goat paths through vacant land and cuts in fences were widespread and suggest a pent-up demand for route directness. Travel surveys of residents found …

Medicaid Expansion, Long-Term Care Financing In Retirement States And The Post World War Ii Birth Cohort, Toni P. Miles

Center for Policy Research

This policy brief contains a formal consideration of ideas discussed during a presentation to the 2012 Syracuse Seminar on Aging. Like most briefs, it will appeal to policy makers and academics craving detailed demographic, fiscal and policy data. Before diving into this brief, I would encourage readers to view the presentation video (available at http://www.youtube.com/ watch?v=bsv8K7DdJFY). As you will see, the seminar was informal and the discussion was wide ranging. In contrast, this brief focuses on limitations faced by states as they finance longterm care. It is primarily concerned with the Medicaid expansion and growing need for care as the …

Contesting Sustainability: Bikes, Race, And Politics In Portlandia, Amy Lubitow, Thaddeus R. Miller

Urban Studies and Planning Faculty Publications and Presentations

Despite decade old calls for a "just sustainability," urban sustainability policy and practice remains oriented toward environmental outcomes and eco-lifestyle projects. Notions of equity, justice, and inclusion continue to be marginalized in favor of technological solutions, such as green buildings, that are visible, easy to implement, and help to promote economic development. By examining a controversy over a bikeway development project in a rapidly gentrifying neighborhood in Northeast Portland, Oregon, this article explores how despite apolitical appeals to broadly shared values or visions of what a sustainable city ought to look like, sustainability projects can be—and perhaps should be—hotly contested. …

The Application Of Smart Phone, Weight-Mile Truck Data To Support Freight-Modeling, Performance Measures And Planning, Katherine E. Bell, Miguel A. Figliozzi

Civil and Environmental Engineering Faculty Publications and Presentations

Oregon is one of the few states that currently charge a commercial truck weight-mile tax (WMT). The Oregon Department of Transportation (ODOT) has developed a data-collection system – Truck Road Use Electronics (TRUE) – to simplify WMT collection. The TRUE system includes a smart phone application that collects and records Global Positioning System (GPS) data. The TRUE data has enormous advantages over GPS data used in previous research due to its level of geographic detail and the potential to also integrate trip origin and destination, vehicle class, and commodity-type data. This research evaluates the accuracy of the TRUE data and …

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 …

Re.Invest, Denise Thompson

July 10, 2013: Best Practices and Communications Strategies for Adapting to Sea Level Rise and Flooding

No abstract provided.

Relocation Of Homeless People From Odot Rights-Of-Way, Ellen M. Bassett, Andrée Tremoulet, Allison Moe

TREC Final Reports

This research project consists of an investigation of responses to homeless encampments on rights-of-way owned by Departments of Transportation (DOTs). While DOTs are not housing or social service agencies, their role as major public landowners involves them in dealing with the consequences of homelessness. The research goals included analyzing the prevalence of the problem, documenting how DOTs are responding, and culling from this data information that could be used as a basis for creating a best practices guide. The research included a single mixed-methods, in-depth case study, electronic surveys of practitioners and follow-up interviews. Products consist of two reports (included …

Research Brief: "Suicide Among Patients In The Veterans Affairs Health System: Rural-Urban Differences In Rates, Risks, And Methods", Institute For Veterans And Military Families At Syracuse University

Institute for Veterans and Military Families

This brief is about the differences between rural and urban veterans in risks and rates for suicide. In policy and practice, communities should implement support programs for rural veterans, and veteran families should educate themselves about the risk factors for suicide and support veterans in their families; policymakers should increase VA outreach programs in rural areas, as well as programs educating rural veterans about the importance of mental health treatment for those at risk for suicide. Suggestions for future research include looking at the impact of social context on suicide rates, determining the relationship between suicide risk for rural veterans …

Omsi - Clinton: A Corridor For Invention And Innovation, Todd Borkowitz, Katherine Dahlin, Gena Gastaldi, Kyle Goodman, Lisa Harrison, Szilvia Hosser-Cox, Irene Kim, Shihui Liu, Qi Liu, Lindsey Menard, Julia Metz, Corrie Minor, Eve Nilenders, John Tomasini, John Verssue, Kate Washington

Urban Design Workshop

This project focuses on developing a vision for the corridor between two new MAX light rail transit stations at OMSI and Clinton Street, which are part of the Portland-Milwaukie Light Rail (PMLR) project, connecting downtown Portland with north Clackamas County via southeast Portland.

This vision must be created with respect to the industrial sanctuary that flanks this stretch of light rail corridor to the west and the residential and light industry to the east.

This document is the product of a 2013 urban design workshop at Portland State University. The project builds upon three previous urban design workshops that focused …