Digital Commons Network^™

Spatial Validation Of Agent-Based Models, Kristoffer Wikstrom, Hal T. Nelson

Public Administration Faculty Publications and Presentations

This paper adapts an existing techno–social agent-based model (ABM) in order to develop a new framework for spatially validating ABMs. The ABM simulates citizen opposition to locally unwanted land uses, using historical data from an energy infrastructure siting process in Southern California. Spatial theory, as well as the model’s design, suggest that adequate validation requires multiple tests rather than relying solely on a single test-statistic. A pattern-oriented modeling approach was employed that first mapped real and simulated citizen comments across the US Census tract. The suite of spatial tests included Global Moran’s I, complemented with bivariate correlations, as well as …

Enabling Decision-Making In Battery Electric Bus Deployment Through Interactive Visualization, Xiaoyue Cathy Liu, Gabrielius Kudirka, Biao Kuang, Yirong Zhou, Jianlin Chen

TREC Final Reports

The transit industry is rapidly transitioning to battery-electric fleets because of the direct environmental and financial benefits they could offer, such as zero emissions, less noise, and lower maintenance costs. Yet the unique spatiotemporal characteristics associated with transit system charging requirements, as well as various objectives when prioritizing the fleet electrification, requires the system operators and/or decision-makers to fully understand the status of the transit system and energy/power system in order to make informed deployment decisions. A recently completed NITC project, No. 1222 titled An Electric Bus Deployment Framework for Improved Air Quality and Transit Operational Efficiency, developed a bi-objective …

Resurfacing A Trail In Oregon Using Volcanic Ash, Charles Riley, Ashton Greer

TREC Project Briefs

In the latest instance of taking research to practice, researchers at Oregon Tech have completed a pilot section of trail using a NITC-developed sustainable paving method. A quarter-mile section of the Klamath Geo Trail, just east and up the hill from the Oregon Tech Klamath Falls campus, has been successfully resurfaced using volcanic ash from Mount Mazama.

Applying A Mt. Mazama Volcanic Ash Treatment As A Trail Accessibility Improvement, Charles Riley, Ashton Greer, Matthew D. Sleep

TREC Final Reports

A procedure has been developed for implementing a topically applied Mt. Mazama volcanic ash trail surface amendment for improving trail firmness and stability. This project involved implementation of previously conducted Mt. Mazama volcanic research by applying a Mazama Ash and Portland Cement solution over a 0.2-mile section of the Geo Trail at the Oregon Institute of Technology Klamath Falls campus. Testing was performed to verify ideal Ash-to-Cement-to-Water ratios. A procedure was developed and applied for batching and mixing the dry materials on-site, spreading and integrating the dry material with the existing trail surface, and wetting and compacting the surface. After …

Pedestrian Wayfinding Under Consideration Of Visual Impairment, Blindness, And Deafblindness: A Mixed-Method Investigation Into Individual Experiences And Supporting Elements, Martin Swobodzinski, Amy T. Parker, Elizabeth Schaller, Denise Snow

TREC Final Reports

In this report we discuss to-date findings of a project that aimed at assessing individual and environmental affordances in the context of human pedestrian wayfinding of visually impaired, blind, and deafblind travelers in public spaces. Our project afforded collaboration, co-design, and co-creation of knowledge between the investigators, partners at the American Printing House of the Blind and GoodMaps, the Portland State University Digital City Testbed Center, and members of the disability community. The objective of the project was to better understand how different wayfinding aids, that is, wayfinding apps, tactile maps, and verbal route descriptions, are employed by visually impaired, …

Accessing Opportunities For Household Provisioning Post-Covid-19, Kelly Clifton, Amanda Howell, Kristina M. Currans, Gabriella Abou-Zeid, Max Nonnamaker, Paula C. Carder

TREC Final Reports

In this project, we used a mixed-methods study to collect critical information to evaluate the extent to which people modified their shopping behavior, either by choice or necessity, to meet their provisioning needs during the COVID-19 crisis and the following recovery. First, four waves of a cross-sectional survey were administered online to a representative sample of households in Arizona, Florida, Michigan, Oregon, and Washington. This longitudinal, comparative study responded directly to a critical research gap and advanced behavioral science by providing a rich survey dataset to support and test theories of behavioral change and technology adoption. Second, focus groups were …

Portland State And The Downtown Portland Plan - 50 Years Later With Ethan Seltzer, Ethan Seltzer

PDXPLORES Podcast

Fifty years ago, the City of Portland developed a plan for the downtown corridor with a radical vision of what a central city could be. The downtown we know today is the result of that plan. In this episode of PDXPLORES, Professor Emeritus Ethan Seltzer discusses the 1972 downtown plan and how Portland State evolved into an urban-serving university alongside the downtown corridor.

Click on the "Download" button to access the accompanying article Portland, Portland State, and the Urban University Idea.

Transcript for audio below as additional file.

Link to city archive documents

https://pdxscholar.library.pdx.edu/oscdl_cityarchives/

Statistical Inference For Multimodal Travel Time Reliability, Avinash Unnikrishnan, Miguel Figliozzi, Subhash C. Kochar

TREC Final Reports

Travel time reliability is a key metric of interest to practitioners and researchers because it affects travel choice and the economic competitiveness of urban areas. This research focuses on three travel time reliability metrics – buffer index, modified buffer index, and the relative width of travel time distributions. The key novel contributions of this research include using the multivariate delta method to prove that the sampling distributions of the three travel time reliability metrics are asymptotically normal. The asymptotic standard error for the three reliability metrics is derived. The asymptotic normality and the standard error result are used to arrive …

Community Transportation Academy: Course Curriculum And Implementation Handbook, Nathan Mcneil, Keith Bartholomew

TREC Final Reports

A Community Transportation Academy (CTA) is a course that harnesses the knowledge, technical expertise and passions of practicing transportation professionals in a city to immerse a cohort of interested and dedicated community members in transportation issues over a two to three month curriculum.

The CTA curriculum was developed by drawing from the Portland Traffic and Transportation (PTT or Portland CTA) course, along with the Wasatch Transportation Academy (WTA or Wasatch CTA, which was inspired by the Portland course). Planning academy courses in cities around the country are also good models to look to for how to structure and operate such …

2022 Community-Based Care: Resident And Community Characteristics Report On Assisted Living, Residential Care, And Memory Care Communities, Ozcan Tunalilar, Paula Carder, Jaclyn Winfree, Sheryl Elliott, Minju Kim, Diana Jacoby, Wafi Albalawi, Portland State University Institute On Aging

Institute on Aging Publications

This report summarizes findings from the 8th annual study of Oregon community-based care settings, including assisted living and residential care facilities, and memory care communities. This study was conducted during fall 2021 and winter 2022.

Launching The Wasatch Transportation Academy, Nathan Mcneil, Keith Bartholomew, Matthew Ryan

TREC Final Reports

The “Community Transportation Academy” model seeks to break down the barriers for community members to participate in transportation decision-making processes. Since 1991, the Portland Traffic and Transportation Course has held at least one course each year, connecting Portland residents with top planners, engineers, and decision-makers from agencies working on transportation in the region, with the goal of conveying the factors professionals consider, ranging from technical considerations, legal and policy mandates, other tradeoffs, and how the community can engage with and influence decisions. This project sought to implement a transportation academy in the Salt Lake City region inspired by the Portland …

Gis Training In Transportation And Environmental Justice For Promoting Student Success In Steam Education, Joowon Im, Alan Klein, Amruta Sakalker

TREC Final Reports

Transportation land uses have a significant impact on vulnerable ecologies, especially in a rapidly urbanizing region like Dallas-Fort Worth. To study this relationship, the research team will develop a pilot ArcGIS lab course to expose high school students to critical regional tools and technology. This course will demonstrate the connections between transportation planning and design and environmental justice. The College of Architecture Planning and Public Affairs at UT Arlington will partner with CityLab high school in the Dallas Independent School District to develop a four-week lab course curriculum in ArcGIS and other emerging regional mapping technologies.

High school students will …

Estimating The Economic Impacts Of Transportation-Related Supply Chain Disruptions In The Post-Earthquake Environment, Divya Chandrasekhar, Sua Kim, John Downen, Joshua Spolsdoff

TREC Final Reports

Transportation systems play a critical role in maintaining supply chains for effective post-disaster recovery. Modeling the potential economic impact of transportation-related disruptions, therefore, is an important step to promoting pre-event community wide recovery and resilience planning. But existing supply chain and economic impact models are cost prohibitive and overly sophisticated for use by public sector entities with limited resources. There is also limited understanding of how small and medium enterprises (SMEs) adjust to post-disaster transportation disruption and how this experience influences their future preparedness for similar events. This project had two objectives: (1) to analyze the economic impact due to …

An Introduction To Gis For Dallas, Texas High Schoolers, Joowon Im, Alan Klein, Amruta Sakalker

TREC Project Briefs

A summary of TREC research project NITC-RR-1468,GIS Training in Transportation And Environmental Justice for Promoting Student Success in STEAM Education.

Mobility For The People: Evaluating Equity Requirements In Shared Micromobility Programs, Anne Brown, Amanda Howell, Hana Creger

TREC Final Reports

Technology-enabled shared micromobility services have expanded mobility for some travelers, but significant barriers to use limit their uptake among certain groups. To address these barriers, cities and professional transportation organizations have undertaken two distinct efforts to operationalize equity in shared micromobility services: 1) drafted equity frameworks in an attempt to clearly define equity within the transportation context and to provide guidelines for what cities should consider when designing equity-based mobility programs; and 2) some cities have attempted to ameliorate access disparities by establishing new requirements for shared micromobility programs. Both equity frameworks and program requirements mark important steps to operationalizing …

Citizens' Preferences On Green Infrastructure Practices And Their Enhancement In Portland, Oregon, Katsuya Tanaka, Hal T. Nelson, Nicholas Mccullar, Nishant Parulekar

Public Administration Faculty Publications and Presentations

Green infrastructure (GI) has been gaining increasing attention due to its efficiency in controlling and purifying urban stormwater runoff, creating environmental amenities, and biodiversity conservation. Nevertheless, the existing knowledge of people's preferences for GI is not yet sufficient for evidence-based policymaking for enhancing GI. This study analyzes citizens' perceptions of the relative importance of six GI practices and estimates their willingness to pay (WTP) to enhance them. To this end, the study applies two types of stated preference methods (best-worst scaling and contingent valuation) to citizen survey data collected in Portland, Oregon. We found that GI practices that are more …

A Community-Informed Exploration Of Immigrants' Pandemic Experiences With Pronoy Rai, Pronoy Rai

PDXPLORES Podcast

During the pandemic, many of the region's frontline workers were, and continue to be, members of immigrant communities. Assistant Professor Pronoy Rai has partnered with members of these communities and community-serving non-profit organizations to gain a better understanding of the immigrant experience of the pandemic and pandemic recovery. A human geographer, Professor Rai's research aims to improve policy and policy outcomes. Rai's work is supported by PSU's Metropolitan Engaged Research Initiative and Community-Engaged Research Academy.

Click on the "Download" button to access the audio transcript.

2022 Adult Foster Home Resident And Community Characteristics Report On Adult Foster Homes, Ozcan Tunalilar, Paula C. Carder, Jaclyn Winfree, Sheryl Elliott, Minju Kim, Diana Jacoby, Wafi Albalawi

Institute on Aging Publications

This report describes results from a study of Oregon adult foster homes (AFH), including home and owner characteristics; monthly charges and payment sources; resident characteristics, personal and health-related needs; and owners’ experiences with supports and challenges due to the COVID-19 pandemic. The study’s purpose was to collect and report data that can inform and advise policymakers, state and county agency staff, aging advocates and AFH owners about the status of AFHs in Oregon. The report includes information collected between December 2021 and March 2022 and, where possible, compares it to findings from prior years of this study and to other …

E-Scooters In Tucson, Az: Modeling Placement, Charging, And Rebalancing, Jianqiang Cheng

TREC Project Briefs

Are e-scooters just the first sign of a shared-mobility revolution? If they are, then researchers at the University of Arizona intend to make sure that the emerging transportation system has functional models on par with other modes of transportation. In 2018, approximately 100 U.S. cities had already launched shared e-scooter programs, accounting for 38.5 million trips. However, the models to manage e-scooter sharing are only recently being developed. In a project funded by the National Institute for Transportation and Communities (NITC) and led by Dr. Jianqiang Cheng, the research team set out to develop data-driven, decisionmaking models for shared-mobility system …

Data-Driven Optimization For E-Scooter System Design, Abolhassan Mohammadi Fathabad, Xiaofeng Li, Jianqiang Cheng, Yao-Jan Wu

TREC Final Reports

The objective of this project is to develop data-driven, decision-making models for shared-mobility system design and operation. Specifically, we will use shared e-scooters as a representative system, with the ultimate goal of facilitating an electric shared-mobility revolution that promises a more sustainable future. In the past few years, shared e-scooter systems have gained increased popularity around the world because of their benefits to health, traffic congestion, the environment, and accessibility. As of 2018, approximately 100 U.S. cities have launched shared e-scooter programs, accounting for 38.5 million trips. However, the business model to manage e-scooter sharing remains nascent, with many challenges …

How-To Guide For The Creation Of Villages, Todd Ferry, Greg Townley, Marisa Zapata

Homelessness Research & Action Collaborative Publications and Presentations

This How-To Guide for the creation of alternative shelters called villages is the outcome of a multi-year study by Portland State University’s Homelessness Research & Action Collaborative on the village model, funded by the Meyer Memorial Trust. It is one component of a larger document which and portraits of individuals involved in some aspect of villages. The six Portland-area villages included in this study were Dignity Village (2000), Hazelnut Grove (2015), Kenton Women’s Village (2017/2019), Clackamas County Veterans Village (2018), Agape Village (2019), and the St. Johns Village (2021). The work presented here relies on the direct input from those …

Using Data To Improve Public Safety With Kris Henning, Kris Henning

PDXPLORES Podcast

Professor Kris Henning's research focuses on helping criminal justice agencies improve decision-making through data analysis and the implementation of evidence-based practices. In this episode of PDXPLORES, Henning discusses efforts to help law enforcement agencies improve the systems and practices used to report crimes via online portals.

Click on the "Download" button to access the audio transcript.

Legalizing Mobile Dwellings : A Guide For Expanding A Unique Affordable Housing Option In Your City, Grace Coffey, Scott Goodman, Matthew Hall, Sam Huck, Andrew Oliver

Master of Urban and Regional Planning Workshop Projects

In much of the United States, housing options are limited while costs rise. The purpose of this report is to analyze the utility and functionality of mobile dwellings as an interim housing option to provide shelter and basic living needs on private residential lots. The policy context presented below for permitting mobile dwellings as part of the solution for growing issues of housing affordability focuses on Oregon and the Portland Metro region, but could be applicable in a variety of urban contexts.

While missing middle housing and ADUs have received much attention in recent years as a solution for addressing …

East Portland Resilient Island Vision Plan, Blair Vallie, Mary Chase, Mirna Ali, Journie Gering, Rica Perez, Allan Wilson

Master of Urban and Regional Planning Workshop Projects

To execute the East Portland Resilient Island Project, RIP City Planning has partnered with Portland’s Disaster Resilience and Recovery Action Group (DRRAG), an organization composed of representatives from Portland Bureaus of Development Services, Emergency Management, Environmental Services, Water, Planning and Sustainability, Transportation, and Parks & Recreation, as well as Portland State University’s Institute for Sustainable Solutions. DRRAG and RIP City Planning see this project as a prime opportunity to better understand and enhance the East Portland Community Center's role in fostering social connectivity and community-level disaster planning. Through abundant engagement efforts with local community groups and EPCC patrons, we aim …

Newberg Car Camping Initiative, Katie Carroll, Ryan Haight, Mary Hendricks, Scott Sharba, Anthony Tortorici, Paul Vickers

Master of Urban and Regional Planning Workshop Projects

The Newberg housing market is experiencing the effects of a rapidly growing population on a relatively static housing stock. As competition for a limited supply of housing increases, low- and moderate-income households face the choice of absorbing rising housing costs or being priced out of their homes. This pressure has shown to result in increased rates of housing instability and houselessness in comparable communities across the state. Concerns around housing affordability prompted the Newberg City Council to adopt a 5-Year Housing Work Program in 2020. The 5-Year Housing Work Program consists of 49 housing-related directives intended to address a variety …

Vancouver Climate Adaptation Strategy, Jodi Mescher, Jenna Cangialosi, Jai Daniels, Trevor Luu, Ellen Mickle, Jamie Shalvey

Master of Urban and Regional Planning Workshop Projects

This report is intended to be used internally by the City to guide climate adaptation policies in conjunction with the Climate Action Plan (see right). Key elements of this report include an analysis of the City’s climate change risks and populations most vulnerable to climate change, a review of best practices from other cities, insights from community engagement, and recommended strategies for supporting climate adaptation.

Safety Interventions For Houseless Pedestrians, Peter Domine, Sean Doyle, Asif Haque, Angie Martínez Sulvarán, Nick Meusch, Meisha Whyte

Master of Urban and Regional Planning Workshop Projects

In 2016, the City of Portland adopted the Vision Zero Action Plan with the goal of eliminating traffic deaths and serious injuries on Portland’s streets. The Portland Bureau of Transportation (PBOT) also makes a commitment in all of its plans to create a more equitable transportation system by prioritizing areas of the city with a disproportionate number of BIPOC community members and people with lower incomes, all of whom face a greater risk from traffic violence. To achieve its Vision Zero goals, the City and PBOT have undertaken a number of actions, including redesigning streets through traffic calming and traffic …

Envisioning An Equitable Central City, Tanja Olson, Caroline Crisp, Heidi Hinshaw, Sarah Pearlman, Laurel Priest, Jacob Storm

Master of Urban and Regional Planning Workshop Projects

This Master of Urban and Regional Planning (MURP) Workshop project working with our clients, City of Portland’s Bureau of Transportation and Bureau of Planning and Sustainability, advances the pursuit of equity within Portland’s Central City. Six MURP students acted as the consultant, under the name VF Planning, and with the guidance of Portland State University professors.

Portland’s Central City (CC) stretches from the West Hills to SE 12th Avenue and includes ten subdistricts: Lower Albina, Lloyd, and Central Eastside to the east and Pearl, Old Town/Chinatown, Goose Hollow, West End, Downtown, South Downtown/University, and South Waterfront to the west of …

Global Climate Governance: Rising Trend Of Translateral Cooperation, Nataliya Stranadko

Public Affairs and Policy Faculty Publications and Presentations

The transformation from the Kyoto Protocol to the Paris Agreement has been analyzed by international relations scholars, international law, and transnational governance theory. The international relations literature looks at the climate regime from a perspective of power distribution, state interests, institutions, and multilateral negotiations. International law theory focuses on legal analysis and design of international climate agreements. The transnational governance literature examines the participation of transnational actors at different levels of governance. However, each of these theories overlooks a bilateral trend of cooperation in a multilateral setting that arises as part of the construction or reconstruction of the international regime. …

Exploring Data Fusion Techniques To Estimate Network-Wide Bicycle Volumes, Sirisha Kothuri, Joseph Broach, Nathan Mcneil, Kate Hyun, Stephen Mattingly, Md. Mintu Miah, Krista Nordback, Frank Proulx

TREC Final Reports

This research developed a method for evaluating and integrating emerging sources (Strava, StreetLight, and Bikeshare) of bicycle activity data with conventional demand data (permanent counts, short-duration counts) using traditional (Poisson) and advanced machine learning techniques. First, a literature review was conducted, along with cataloging and evaluating available third-party data sources and existing applications. Next, six sites (Boulder, Charlotte, Dallas, Portland, Bend, and Eugene) that represented a variety of contexts (urban, suburban) and geographical diversity were selected. Of these, Boulder, Charlotte and Dallas constituted the basic sites, where one year of data (i.e., 2019) was used for modeling. Portland, Bend, and …