Social and Behavioral Sciences Commons^™

Key Points In Preparation For Oregon Legislative Session (2024): Examining The Multifaceted Impacts Of Drug Decriminalization On Public Safety, Law Enforcement, And Prosecutorial Discretion, Kelsey S. Henderson, Christopher Campbell, Brian Renauer

Criminology and Criminal Justice Faculty Publications and Presentations

These findings are part of a 3-year study to examine the impacts of possession of PCS law changes on: (1) law enforcement discretion, (2) prosecutorial decision-making, (3) courts/sentencing, and (4) public safety. The key findings, unless noted, represent statewide trends and impacts. Prior to M110, other statewide changes in policy, law, and historical events such as the COVID-19 lockdown/court backlog and public defense crisis also had important impacts on enforcement, prosecution/sentencing, and public safety outcomes. As such, data collected during the early implementation of M110 is not likely a reliable predictor of its ultimate impact. The data reported on below …

Perspectives On E-Scooters Use: A Multi-Year Cross-Sectional Approach To Understanding E-Scooter Travel Behavior In Portland, Oregon, Minju Kim, Nicholas M. Puczkowskyj, John Macarthur, Jennifer Dill

Urban Studies and Planning Faculty Publications and Presentations

Unique travel behavior patterns are observed as shared electric scooters (e-scooters) provided by private operators expand into U.S. cities. Three separate years of e-scooter ridership survey data from the Portland Bureau of Transportation’s E-scooter Pilot Programs were analyzed to ascertain the multi-year cross-sectional and demographic characteristics of e-scooter riders. A binary logistic regression model, descriptive statistics, and multiple regression model are used to analyze e-scooter mode substitution, trip purposes, and travel distance from 2018 to 2020 in Portland, Oregon. Since the introduction of e-scooter in 2018, respondents have been less likely to use their previous transportation, and especially vehicle …

… And I Feel Fine, Lisa Bates

Urban Studies and Planning Faculty Publications and Presentations

I had a little bit of a meltdown at a coffee break during the recent meeting of the Association of Collegiate Schools of Planning – North America’s gathering of university planning faculty. It’s not typically a high-key emotional atmosphere, but I was truly thrown for a loop by a photo display of past meetings. There I was, among colleagues, as we hosted the 2016 meeting in Portland. In the picture, taken about two weeks before the U.S. election, we are all grinning widely. I had passed out lapel pins with Michelle Obama making a side-eye face to all the members …

Transportation Academies As Catalysts For Civic Engagement In Transportation Decision-Making, Nathan W. Mcneil, Keith Bartholomew, Matthew Ryan

Urban Studies and Planning Faculty Publications and Presentations

Citizen planning academies, which became popular in the 1990s, are increasingly being used in transportation planning and decision-making contexts. By making use of a longer-term, multiweek educational format, transportation academies have the potential to reduce barriers and enhance community capital leading to more meaningful and sustained government community interaction. This paper tracks the rise of transportation academies in North America, and provides a detailed look at two academies: one in Portland, Oregon with a 30-year history, and another recently launched in the Salt Lake City, Utah region. Postacademy surveys of participants provided data that illuminated whether the transportation academy model …

Evaluation Of Driver Comprehension And Compliance Of Red Colored Pavement Markings For Transit Lanes In Portland, Oregon, Nathan Mcneil, Christopher Monsere, Jennifer Dill

Urban Studies and Planning Faculty Publications and Presentations

Many U.S. agencies have experimented with red colored pavement markings in transit lanes to enhance the message that they are restricted to transit vehicles. This study evaluates non-transit drivers’ comprehension of and compliance with red colored lane markings in transit priority lanes intended to communicate lane restrictions and appropriate turning and merging locations. Two complementary research methods were used: 1) an online survey of drivers’ comprehension of red colored pavement markings; and, 2) evaluation of video collected at locations pre and post installation of red colored pavement markings. In the survey, most drivers recognize the red pavement color as a …

Understanding Connections Between Mobility, Transportation, And Quality Of Life In Refugee Communities In Tucson, Arizona, Orhon Myadar, Arlie Adkins, Maia Ingram, Nicole Iroz-Elardo

TREC Final Reports

In this multidisciplinary research project we aimed to study mobility challenges that refugees in Tucson, AZ, experience after their resettlement. Using qualitative and quantitative data collected from interviews and survey data, we argue that mobility shapes the ways refugees foster social connections, attain employment and access educational opportunities. Accordingly, barriers to mobility negatively impact refugees’ perception of well-being in post resettlement. However, these challenges are not experienced evenly. Nor are refugees passive subjects who lack agency in overcoming various barriers they experience. The study reveals the resilience of the refugee community in navigating the intersectional challenges they confront related to …

Psu Student Housing Insecurity Interim Report, Jacen Greene, Homelessness Research & Action Collaborative, Portland State University

Homelessness Research & Action Collaborative Publications and Presentations

EXECUTIVE SUMMARY

Project Background

This study on student housing insecurity and homelessness was funded as part of a HUD FY2023 Community Project Funding Opportunity awarded to Portland State University. Phase 1 of the study, which led to this report by PSU’s Homelessness Research & Action Collaborative (HRAC), includes a literature review; a summary of PSU student survey results; a description of PSU programs based on interviews with staff and administrators; an analysis of programs at other institutions; and a set of recommendations for better addressing student housing needs. Phase 2 of the study will include the results of a comprehensive …

Extreme Heat Vulnerability Among Older Adults: A Multi-Level Risk Index For Portland, Oregon, Jacklyn N. Kohon, Katsuya Tanaka, Dani Himes, Paula Carder, Eiji Toda, Bryant Carlson

Institute on Aging Publications

Background and Objectives

Extreme heat is an environmental health equity concern disproportionately impacting low-income older adults and people of color. Exposure factors, such as living in rental housing and lack of air conditioning, and sensitivity factors, such as chronic disease and social isolation, increase mortality risk among older adults. Older persons face multiple barriers to adaptive heat mitigation, particularly for those living in historically temperate climates. This study measures two heat vulnerability indices to identify areas and individuals most vulnerable to extreme heat and discusses opportunities to mitigate vulnerability among older adults.

Research Design and Methods

We constructed two heat …

Gorge And Mt. Hood Regional Park And Ride Assessment, Aidan Simpson, Beth Whitener, Emily D'Antonio, Harrison Husting, Jessa Miller, Kadin Mangalik

Master of Urban and Regional Planning Workshop Projects

To help combat congestion and promote environmental stewardship and safety, the Gorge & Mt. Hood Regional Park and Ride project hopes to create a vision for a new park and ride system. The project will focus on the I-84, US 26, and OR 35 corridors, with a particular focus on underserved communities with limited access to the area. Through engagement with key project partners, the team has developed a site inventory for new potential locations as well as recommendations for optima implementation. The intention of these park and rides is to help be one of the many strategies to improve …

Fremont Bridgehead Reclamation Project, Ananda Gordon-Peabody, Meg Grzybowski, Ian Meisner, Grace Dudley, Paul Ahrns

Master of Urban and Regional Planning Workshop Projects

The Fremont Bridgehead Reclamation Project aims to promote the redesign of Kerby Avenue I-405 Freeway ramps and the return of ODOT land to community-oriented uses with the hopes of providing economic restitution to displaced community members. It intends to offer an action roadmap to advance the case for ramp redesign and potential alternatives for reclaimed land uses. Collaborating with the Eliot Neighborhood Association, the student team formulated recommendations, actionable steps, and future visions for the site based on stakeholder interviews and engagement feedback. This project intends to address historical and current inequities with the goal of advancing justice, restitution, and …

82nd Avenue Tree Canopy Development, Amber Shackelford, Alvin Dimalanta, Caleb Susuras, Darby O'Brien, Eiji Toda

Master of Urban and Regional Planning Workshop Projects

The 82nd Avenue Tree Canopy Development project envisions a climate resilient corridor with abundant tree canopy on 82nd Avenue that contributes to a more sustainable Portland. It aims to develop a community-centered tree canopy plan to mitigate negative impacts caused by the current treeless streetscape. An evidence-based analysis will guide a tree planting framework along 82nd Avenue from I-84 to Foster-Powell. The final report will include policies supporting tree canopy development, strengthening the coalition's Portland Clean Energy Fund application, fostering collaboration between landowners and government agencies, and promoting tree preservation strategies.

NixyáAwii Watikš, Owen Christofferson, Sara Goldstein, Nick Hadfield, Zhuoheng (Brian) Liu, Jenny Mazzella, Victoria Young

Master of Urban and Regional Planning Workshop Projects

Nixyáawii Watikš is a proposed multi-use path connecting the City of Pendleton, Oregon, to Mission, a community hub containing tribal institutions and new mixed-use developments in the heart of the Umatilla Indian Reservation. In collaboration with the Tribal Planning Office of the Confederated Tribes of the Umatilla Indian Reservation (CTUIR), the student team conducted research and explored possible trail route options based on physical constraints, stakeholder interests, community priorities, and travel needs. This project aims to propose one recommended trail solution that improves accessibility, connectivity, transportation options, and safety for all trail users.

Repurposing Retail To Bring Downtown Back: A Recovery Plan For Portland's South Downtown, Jamie Arnau, Luis Caro, Matthew Flodin, Amy Ly, Thiery Nanetangar, Valeria Tapia

Master of Urban and Regional Planning Workshop Projects

The Revive Collaborative team is creating a plan to revitalize the South Downtown neighborhood and promote economic opportunity for local business owners. PSU’s vacant retail spaces present the opportunity to restructure and reimagine how these spaces might be used to uplift the neighborhood, capitalize on its existing strengths, and increase the district’s livability. Public engagement with business owners, stakeholders, students, and residents combined with current best practices have informed Revive Collaborative’s suite of recommendations for how PSU can help revitalize South Downtown from both a broad policy and granular program perspective.

Prioritizing Land For Housing In Warrenton, Anis Boughanmi, James Dingwell, Maddy Knickerbocker, Jovan Merceron, Miranda Seekins, Amanda Ufheil-Sommers

Master of Urban and Regional Planning Workshop Projects

To address future housing needs, this project offers the City of Warrenton’s planning department tools to guide future housing planning and infrastructure investments. The team developed suitability analysis models to identify priority locations for future development based on environmental constraints, current infrastructure, community amenities, and emergency resilience. This process identified a more nuanced picture of developable land than the adopted analyses. The report provides recommendations to guide changes to comprehensive planning policies.

Transportation Behavior Among Older Vietnamese Immigrants In The Dallas-Fort Worth Metroplex: Well-Being, Geospatial Mobility, And Potential Indicators For Ride Providers’ Geospatial Burden, Rebecca L. Mauldin, Stephen Mattingly, Mahshid Haque, John P. Connolly, Latisha Thomas, Zachary Tarbet, Farzana Chowdhury, Rupal Parekh

TREC Final Reports

Nearly 4.6 million immigrants aged 65 and older live in the United States. This population is expected to more than triple in size by 2050. A lack of culturally appropriate transportation solutions for older immigrants creates disparities in access to services for older immigrant populations, increasing their risk of social isolation and reduced physical and mental health. A growing number of older immigrants live in low-density urban environments, which are characterized by high automobile dependency and limited public transportation. In these environments, older immigrants are likely to depend on others to provide private transportation. Negative aspects of this reliance on …

Sustaining Multimodal Choices: Examining Travel Behavior For Non-Work Trips Beyond Covid-19, Yizhao Yang, Rebecca Lewis

TREC Final Reports

Increasing the usage of sustainable travel modes requires changes in both environmental and psychological dimensions. A knowledge gap exists concerning the mechanism via which various factors interact to shape travel decision. Gaining such knowledge requires our ability to examine people’s behavioral adjustment in reaction to environmental and psychological changes or interventions.

This project uses COVID-19 as a natural experiment, treating the significant disruption induced by the pandemic as an intervention to study changes in travel behaviors and adoption of different travel choices following the COVID pandemic. This project builds upon a 2020 study conducted by the PI’s. It adopts a …

Climate Change Policies And Older Adults: An Analysis Of States’ Climate Adaptation Plans, Bryant Carlson, Jacklyn N. Kohon, Paula Carder, Dani Himes, Eiji Toda, Katsuya Tanaka

Institute on Aging Publications

Background and Objectives

As climate change drives more frequent and intense weather events, older adults face disproportionate impacts, including having the highest mortality rates from storms, wildfires, flooding, and heat waves. State governments are critical in deploying local resources to help address climate change impacts. This policy study analyzes states’ climate adaptation plans to assess the methods through which they address the impact of climate change on older adults.

Research Design and Methods

This study uses content analysis to analyze available climate change adaptation plans for all U.S. states for strategies designed to increase resilience of older adults to impacts …

Emerging Transformations In Material Use And Waste Practices In The Global South: Plastic-Free And Zerowaste In India, Katie Conlon

Urban Studies and Planning Faculty Publications and Presentations

This study uses a qualitative approach to address limitations and blockages to current plastics reduction via semi-structured interviews with zero waste business practitioners in India. Although they are nascent, India is home to a budding zero waste community that is grappling with how to reduce plastics—via trial and error—and these stakeholders hold insights from lived experience on how plastic reduction can actualize in the Indian subcontinent. This research involved interviewing zero waste businesses and consultants and makers of plastic alternatives in India to understand their experiences with plastic reduction strategies. The key stakeholder interviews reveal key insights for moving forward …

Pedestrian Behavior Study To Advance Pedestrian Safety In Smart Transportation Systems Using Innovative Lidar Sensors, Taylor Li, Sirisha M. Kothuri, Katherine L. Keeling, Xianfeng Terry Yang, Farzana R. Chowdhury

TREC Final Reports

Pedestrian safety is critical to improving walkability in cities. Although walking trips have increased in the last decade, pedestrian safety remains a top concern. In 2020, 6,516 pedestrians were killed in traffic crashes, representing the most deaths since 1990 (NHTSA, 2020). Approximately 15% of these occurred at signalized intersections where a variety of modes converge, leading to the increased propensity of conflicts. Current signal timing and detection technologies are heavily biased towards vehicular traffic, often leading to higher delays and insufficient walk times for pedestrians, which could result in risky behaviors such as noncompliance. Current detection systems for pedestrians at …

Rural Gentrification And The Spillover Effect: Integrated Transportation, Housing, And Land Use Challenges And Strategies In Gateway Communities, Danya Rumore, Philip Stoker

TREC Final Reports

Small towns and cities near national parks, public lands, and other natural amenities throughout the West are experiencing rapid growth and increased visitation. These “gateway communities” comprise a significant portion of the rural West, constituting about 31% of all communities and more than 60% of those under 25,000 people. Our prior NITC-funded research shows that growth and increased tourism create a range of “big city challenges” for gateway communities, particularly a significant increase in housing prices, which pushes the local workforce to outlying areas and other rural communities. As a result, despite being small towns, many developed gateway communities have …

Evaluating Differences Between Ground-Based And Satellite-Derived Measurements Of Urban Heat: The Role Of Land Cover Classes In Portland, Oregon And Washington, D.C., Vivek Shandas, Yasuyo Makido, Aakash Nath Upraity

Urban Studies and Planning Faculty Publications and Presentations

The distinction between satellite-based land surface temperature (LST) and air temperature has become an increasingly important part of managing urban heat islands. While the preponderance of urban heat research relies on LST, the emergence of a growing infrastructure of publicly available consumer oriented, ground-based sensor networks has offered an alternative for characterizing microscale differences in temperatures. Recent evidence suggests large differences between LST and air temperatures, yet discerning the reason for these differences between satellite-derived measurements of urban heat islands (UHI) and ground-based measurements of air temperature remains largely unresolved. In this study, we draw on an unusually robust and …

Food For All In Clackamas County, Jean Dahlquist, Katie Stringer, Alexander Scott Morgan, Marwa Zidi, Kim Hack-Davidson

Master of Urban and Regional Planning Workshop Projects

In partnership with OSU Extension Service and Clackamas County Public Health Division, this project used data and narrative research for planning community-based strategies to improve availability and access to culturally relevant, healthy food resources in Clackamas County. The student team updated demographic and health data from the past Blueprints for a Healthy Clackamas County and visualized the information through maps. Through community engagement in the Molalla area, the project helped determine food preferences, assess gaps, and provide recommendations for healthy, culturally preferred food resource availability specific to Molalla.

Network Effects Of Disruptive Traffic Events, Juan Medina, Xiaoyue Cathy Liu

TREC Final Reports

Current traffic management strategies are based on expected conditions caused by recurring congestion (e.g., by time of day, day of week), and can be very effective when provisions are also given for reasonable variations from such expectations. However, traffic variations due to non-recurrent events (e.g., crashes) can be much larger and difficult to predict, making also challenging efforts to identify, measure, and forecast their disruptive effects. This project explores a proactive approach to deploy a tool for managing non-recurrent congestion by identifying and quantifying the effects of disruptive traffic events at a microscopic level using a comprehensive set of data …

New Lidar System Pinpoints Pedestrian Behavior To Improve Eficiency And Safety At Intersections, Taylor Li, Sirisha M. Kothuri, Xianfeng Terry Yang

TREC Project Briefs

Pedestrian safety is critical to improving walkability in cities. To that end, NITC researchers have developed a system for collecting pedestrian behavior data using LiDAR sensors. Tested at two intersections in Texas and soon to be tested at another in Salt Lake City, Utah, the new software created by a multi-university research team is able to reliably observe pedestrian behavior and can help reduce conflicts between pedestrians and vehicles at signalized intersections. The Utah Department of Transportation (UDOT) is already working on implementing this new LiDAR system to improve data collection at intersections.

Perspectives From Frontline Organizations In The Portland Metro Region On Addressing Food Insecurity During The Covid-19 Pandemic, Megan Horst, Meg Grzybowski, Huijun Tan

Institute of Portland Metropolitan Studies Publications

See video of related event: https://pdxscholar.library.pdx.edu/metropolitianstudies/155/

The main goal of this project was to contribute to an understanding of how frontline-serving food security organizations in the Portland region adapted during the COVID-19 pandemic and other emergencies in 2020-2022 and how they addressed increased rates of food insecurity among the region’s residents. We discuss the experiences of these organizations in serving the region’s food insecure residents, the many adaptations they made in the past few years, barriers experienced, and positive and critical reflections on local government. We identify lessons learned and promising ideas for how to better prepare our region, in …

Impacts Of Successive Drug Legislation Shifts: Qualitative Observations From Oregon Law Enforcement [Interim Report: Year One], Kelsey S. Henderson, Christopher M. Campbell, Brian Renauer

Criminology and Criminal Justice Faculty Publications and Presentations

This report provides the initial findings of Year 1 of a multi year project to understand the effects of successive drug policy efforts in Oregon, with special focus given to Ballot Measure 110 (M110).

Related Reports:
Key Points in Preparation for Oregon Legislative Session (2024): Examining the Multifaceted Impacts of Drug Decriminalization on Public Safety, Law Enforcement, and Prosecutorial Discretion (December 2023)

An Additive Model of Engagement: Considering The Role of Front-End Criminal Justice Agencies in Treatment Provisions [Interim Report: Year Two]