Digital Commons Network^™

The Next Wave Of Abolishing Parking Mandates, Catie Gould, Jeannette Lee

PSU Transportation Seminars

The movement to eliminate parking mandates is having a big moment. This summer, both Oregon and California took statewide action to roll back minimum off-street parking requirements, relegalizing homes and businesses regardless of how many parking spots they have. We’ll take a look at why parking reform is so important, what to expect next in Oregon, and lessons from cities who have already gone all the way to delete this regulation from their zoning code.

Moving From Probabilistic To Time-Based On-Time Performance (For Practitioners), Miles James Allen Crumley

PSU Transportation Seminars

On-Time Performance (OTP) is a probabilistic measure that tells the customer the likelihood that the trip they are about to take will arrive "on-time." However, this metric forces the customer to think in terms of a probability of trip timeliness and not an actual time value for how timely the trip will be. This presentation will explore a new way to examine on-time performance by quantifying the timeliness of trips. Customers can then use this information to determine which trip would be the best to take based on when they need to arrive at their destination. Using a system science …

System-Level Risk Management Of Transportation Structures And Networks, David Y. Yang

PSU Transportation Seminars

Conventional risk assessment approaches in infrastructure management do not fully capture the system-level impact of structural failure or service disruption. As a result, the priorities of preservation projects may be misidentified, leading to suboptimal maintenance schedules and waste of resources. In this presentation, we will first illustrate why conventional risk assessment is not suitable for transportation structures and networks due to interdependency between assets, and then demonstrate how system-level preservation policies can be devised using novel algorithms adapted from the field of deep reinforcement learning. Results from a series of case studies showcase that the system-level risk management is essential …

Freight Moves The Oregon Economy, Becky Knudson

PSU Transportation Seminars

This presentation provides a broad overview of work conducted by the Oregon Department of Transportation in the field of freight analysis supporting long range planning. The information shared will touch upon the data and tools used to conduct analysis, describe the importance of economic context, and share examples from a range of different analyses. Content will be geared toward building understanding of how analysis is used to guide data-driven decision making in the public transportation sector. The presentation will highlight the importance of testing potential public policy to avoid unintended consequences, evaluate tradeoffs across different policy objectives, and test policy …

How Covid-19 Changed Our Cities: Evidence From A National Survey, Deborah Salon

PSU Transportation Seminars

Human behavior is notoriously difficult to change, but a disruption of the magnitude of the COVID-19 pandemic has the potential to bring about long-term behavioral changes. During the pandemic, people were forced to experience new ways of interacting, working, learning, shopping, traveling, and eating meals. A critical question going forward is how these experiences have actually changed preferences and habits in ways that might persist. We collected a nationally-representative, 3-wave panel survey in the U.S. that aims to shed light on this question. This talk will draw from these data to describe how the pandemic did (and did not) change …

Bringing Complete Streets To Reality In State Transportation Projects, Celeste Gilman

PSU Transportation Seminars

In order to improve the safety, mobility, and accessibility of state highways, the Washington State legislature directed Washington State Department of Transportation (WSDOT) to incorporate the principles of complete streets in state transportation projects and to plan, design, and construct facilities that provide street access with all users in mind, including pedestrians, bicyclists, and public transportation users. This new requirement was passed as part of the Move Ahead Washington package in the 2022 legislative session and is effective for state transportation projects starting design on or after July 1, 2022 with a project cost of $500,000 or more. This provides …

Speed Management And Speed Reduction In Portland, Or, Jason C. Anderson, Clay Veka

PSU Transportation Seminars

In 2015, the Portland City Council unanimously passed a resolution committing Portland to Vision Zero, the goal to eliminate traffic deaths and serious injuries. An underpinning of Vision Zero is that streets are managed for safe speeds. This presentation will summarize Portland's speed management process, how it relates to achieving Vision Zero, and present two case studies in which speed limits were reduced: (1) a 25 mi/h to 20 mi/h reduction on residential streets and (2) various reductions on arterials and collectors. Reduction sites in which additional treatments were implemented, such as speed humps and fixed speed safety cameras, will …

The Pacific Sentinel: Fall 2022, Portland State University. Student Publications Board

The Pacific Sentinel

Editor: Dan Chilton

Articles in this issue include:

• Letter From the Editor
• Stranged Writing
• Rock Band Help Finds Time to Breathe Through the Chaos
• Titane
• Hurray for the Riff Raff
• The Work to Resolve Houselessness
• Doctrine Urbi Serviat
• Notes from Behind the Bar
• A very Modest Proposal
• Comic

Port Of Portland’S Marine Terminal 6 Contribution To Regional Economic Development, Lewison Lem

PSU Transportation Seminars

Container cargo shipping service returned to the Port of Portland in Oregon in January 2020 with the regular weekly SM Line service, following more than three years of no container shipping service. Following the global supply chain changes associated with COVID -19, the number of monthly vessel calls at the Port of Portland’s deep-water berth at Terminal 6 has increased regularly to 12 vessel calls in January of 2022. In March of 2022, the largest containership to transit the Columbia river – at 1,100 feet length with capacity of 8,200 containers – arrived at the Port of Portland.

The return …

Impacts Of City-Level Parking Cash-Out And Commuter Benefits Ordinances, Gabriella Abou-Zeid, Allen Greenberg

PSU Transportation Seminars

For many workers, the decision to drive to work is an economically rational one that minimizes their commute costs. The vast majority of employers offer free workplace parking, with few in comparison offering benefits for transit, walking, biking, or other means of commuting. In effect, employers are incentivizing a behavior that increases roadway congestion, reduces physical activity, and increases emissions. Moreover, since lower-income households are less likely to own and have access to a private vehicle than moderate and higher-income households, free parking is a financial benefit that many lower-income employees cannot access.

Researchers from ICF and the Federal Highway …

Rideshare Practices In Developing Countries Vs Developed Countries, Francis Wambalaba

PSU Transportation Seminars

This project investigated strategies towards development, marketing and implementation of employer programs for reducing single occupancy vehicles to mitigate traffic congestion. It was guided by the following research questions: which socio-economic factors influence carpooling; how do environmental factors influence carpooling; and what are effective traffic management strategies for enhancing carpooling. The presentation will also strive to introduce the US context for purposes of perspective.

Webinar: Scooting To Healthy And Safe Mode Choices, Kristina M. Currans, Nicole Iroz-Elardo, John Macarthur

TREC Webinar Series

Shared electric scooters (e-scooters) are fast becoming a mobility option in cities across the United States. This new micromobility mode has the potential to replace car usage for certain trips, which stands to have a positive impact on public health and sustainability goals. However, many aspects of this emerging mode are not well understood.This webinar explores the findings of three NITC studies examining transportation mode choices, safety, and public health outcomes of electric scooters.

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

PSU Transportation Seminars

Cities across the U.S. are facing alarming increases in traffic fatalities, especially among the number of pedestrians who are struck and killed by drivers. Last year, 70 percent of all pedestrian fatalities in Portland were of people experiencing houselessness. As the Portland Bureau of Transportation (PBOT) is updating the city's Vision Zero Plan, a team of PSU urban and regional planning masters students have been investigating how to reduce the risk of being hit and killed specifically for unhoused people. During this presentation, the Street Perspective team will explain the situation, review their approach, and then share the recommendations they'll …

Prioritizing Transit In Portland: Checking In On The Rose Lanes Project, Nathan Mcneil, April Bertelsen, Jaime Jeffrey, Jaime Snook

PSU Transportation Seminars

Transit priority lanes restrict access to certain lanes, prioritizing transit movement, while sometimes allowing for other users or specific actions - for example shared bus and bike lanes, or shared bus and right-turn lanes. Red coloring is sometimes used to reinforce the transit priority with the goal of improving the reliability, safety and compliance with the lane restrictions. The City of Portland and TriMet have been working with partners to use these tools to improve mobility and transit access under the Enhanced Transit Corridors Plan and Rose Lanes Project. This presentation will report back on early lessons learned as …

Why Your City Needs A Car Master Plan, Cathy Tuttle

PSU Transportation Seminars

In 2022, cars are ubiquitous and completely embedded into America’s economy and social fabric. American cities don’t make car plans, but all transportation plans – whether they are for people who walk, bike, take transit, run freight or delivery businesses – are all written in response to cars. Transportation planning is all about cars; supporting cars or constraining cars. How did our cities evolve into places where cars dominate, and where can we go from here? To move to a new paradigm, cities need to acknowledge car dominance and focus on cars with the same rigor they do other modal …

Using E-Bike Incentive Programs To Expand The Market – Trends And Best Practices, John Macarthur, Cameron Bennett

PSU Transportation Seminars

John MacArthur and Cameron Bennett of Portland State University will be presenting the findings and recommendations from their recent white paper "Using E-Bike Incentive Programs to Expand the Market – Trends and Best Practices." This will include a review of the 50+ current, past, and proposed e-bike purchase incentive programs in North America, including summary statistics and details from exemplary programs. Best practice gained from review of the programs and discussion with program managers, industry professionals, and other stakeholders will be shared. A discussion of the benefits of promoting e-bike uptake in regard to mode shift, VMT, emissions, and human …

Urban Literacy: Learning To Read The City Around You, Leanne Claire Serbulo

PDXOpen: Open Educational Resources

This book introduces students to the basic concepts of urban studies. It is an interdisciplinary text that was developed for lower-division undergraduate students. The book is organized into thematic chapters that explore different aspects of urban life, such as the environment, housing, and culture. Each chapter introduces a new way of conceptualizing the city, presents core theories and concepts, and provides examples and case studies from cities around the globe to illustrate the ideas presented in the text. At the end of each chapter, there are review questions and a series of interactive field activities where students can apply the …

Webinar: The Impact Of Decentralizing Homeless Services On Transportation And Mobility, Sarah Canham, Ivis Garcia, Shannon Jones, Jeff Rose

TREC Webinar Series

With findings from a mixed methods research study, this interdisciplinary webinar will present results from a historical public document analysis, a GIS spatial analyses, client surveys and interviews, and interviews with professionals and service providers. In 2019, the delivery of homeless sheltering services in Salt Lake County transitioned from a centralized emergency shelter to a scattered site model with multiple resource center locations, operated by multiple service providers. To understand the degree to which “proximity” to public transportation and other needed services was achieved, this study examined: how the decentralization of homeless services influenced transportation demand and mobility patterns for …

Addressing Gendered Harassment And Women's Travel Needs, Madeline Brozen

PSU Transportation Seminars

This presentation will cover experiences, disparities, and solutions to gendered travel differences. Madeline will discuss research from a worldwide survey of harassment on public transit with specific insights from Los Angeles and research from two agency-led studies in Los Angeles. The talk will cover the large issues that make women's travel needs distinct from their male counter-parts - safety and complex travel patterns and some promising solutions for addressing these disparities.

Open Education Faculty Panel, Jenny Ceciliano, Lindsey Wilkinson, Staci Martin, Norma Cardenas

Open Education Week 2022

Many faculty at PSU have been involved in the Open Education movement. This panel of PSU faculty members discusses how Open Education has affected their teaching practice and how Open Education relates to equity and inclusion.

Our panelists are:

• Jenny Ceciliano, Senior Instructor II of Spanish/Coordinator of First-year Spanish, World Languages and Literatures
• Lindsey Wilkinson, Associate Professor, Sociology
• Staci Martin, Assistant Professor of Practice, CYFS Practicum Coordinator Child, Youth, and Family Studies, School of Social Work
• Norma Cardenas, Assistant Professor of Practice Child, Youth, and Family Studies, School of Social Work

Webinar: Exploring Data Fusion Techniques To Derive Bicycle Volumes On A Network, Sirisha Kothuri, Joe Broach, Kate Hyun

TREC Webinar Series

Planners and decision makers have increasingly voiced a need for network-wide estimates of bicycling activity. Such volume estimates have for decades informed motorized planning and analysis but have only recently become feasible for non-motorized travel modes. Recently, new sources of bicycling activity data have emerged such as Strava, Streetlight, and GPS-enabled bike share systems. These emerging data sources have potential advantages as a complement to traditional count data, and have even been proposed as replacements for such data, since they are collected continuously and for larger portions of local bicycle networks. However, the representativeness of these new data sources has …

Open Legislation In Oregon, Amy Hofer, Karen Bjork, Jaime R. Wood

Open Education Week 2022

Open Oregon Educational Resources’ Director, Amy Hofer, talks about Oregon's legislation around Open Education and how these laws affect teaching and learning at Portland State University (PSU). Karen Bjork, PSU librarian, and Jaime Wood-Riley, OAI staff, talk specifically about PSU's textbook affordability plan, how faculty can label their course materials as low- or no-cost, and what these designations mean for students.

Webinar: Is Transit-Oriented Development Affordable For Low And Moderate Income Households?, Reid Ewing, Justyna Kaniewska

TREC Webinar Series

Transportation and land use planning, as a field, is shifting away from segregated uses connected by highways and streets to more compact, mixed-use developments connected by high-quality transit. This new paradigm has brought special attention to transit-oriented developments (TOD), which are sometimes touted as being among the most affordable, efficient places to live. But how affordable are they, and who has the power to effect change? This study examines housing costs for households living in TODs.

Reckoning With Induced Vehicle Travel, Jamey Volker

PSU Transportation Seminars

Empirical research shows that expanding roadway capacity induces more driving - the so-called "induced travel" phenomenon. However, environmental impact assessments and cost-benefit analyses of roadway capacity expansion projects have historically ignored, underestimated, or misestimated this induced travel effect. As a result, they frequently overestimate the projects' potential to relieve congestion and reduce air pollution. That spurred our team at the National Center for Sustainable Transportation (UC Davis) to develop an online tool to facilitate estimation of induced vehicle travel from capacity expansion projects. This presentation will explain the induced travel phenomenon, introduce our induced travel calculator and its offshoots, …

Webinar: Mobility, Accessibility, And Resiliency Of Community-Dwelling Older Adults, Kate Hyun, Kathy Lee, Caroline Krejci

TREC Webinar Series

Mobility disparities among older adults affect their ability to travel and access services. This project seeks to understand challenges, barriers, and gaps that older adults experience and to develop forms of assistance or educational strategies to fill the varying mobility gaps and meet the mobility needs. This study characterizes older adults’ use of existing and potential transportation options, including conventional transit, paratransit, and ride-hailing systems, based on surveys and interviews collected from community-dwelling older adults in Dallas, Texas. Through the interview during the pandemic, the research team found that perceptual and knowledge barriers appear to be reduced among older adults …

Psu Student Research From The Trb 2022 Annual Meeting: Effect Of Covid-19 On Property Value Premium Of Light Rail Transit, Sangwan Lee

PSU Transportation Seminars

The COVID-19 pandemic has impacted health and transformed many aspects of our lives, such as travel behavior and residential location preference. For instance, since the outbreak, there was a sharp decline in the ridership of public transportation. Moreover, since the pandemic, a shifting preference toward suburban and exurban areas from denser urban areas like Central Business Districts has been reported. Accordingly, a question arises whether the plummeted transit ridership, alongside the anecdotal and empirical evidence that some households prefer to disperse away from the cities, could combine to transform the long-standing housing price mechanism related to transit proximity. Thus, we …

Psu Student Research From The Trb 2022 Annual Meeting: Drone Facility Location Considering Coverage Reliability: Application To Emergency Medical Scenarios, Darshan Chauhan

PSU Transportation Seminars

Public service agencies like hospitals, fire, rescue, and police departments are required to maintain a high level of service. These service standards often come as reliability constraints. For example, fire-related incidents require a 90% response rate in 4 minutes. We consider a case study of tackling out-of-hospital cardiac events using AED-enabled drones in Portland, OR. Environmental factors, majorly wind speed and direction, significantly impact drone performance. We formulate the drone location problem as a robust multi-period maximum coverage facility location problem. We model the coverage reliability constraint as a chance constraint on failure probabilities. For our context, multiple periods translate …

Database Of Marginal Notation In The Psu 1490 Codex: Objectives, Organization, And Continuation, Andi Johnson

Extra-Textual Elements

Portland State University Library's combined 1490 editions of the Fasciculus temporum and Malleus maleficarum contain over 150 individual marginal markings and notations. These marks have been made by numerous readers throughout the monograph's five-century lifespan.

This report accounts for efforts to construct a tool that would allow future students and scholars to visually compare and organize marks was needed before any in-depth analysis of readership could be made, describing the objectives, processes and applications that have defined its development. The tool that was needed was a visual database that enables the visual comparison of markings within the two texts. This …

Possible Methods For Incunabula Digitization For Preservation And Analysis, Steven Andrews

Provenance and Preservation

This paper explores different approaches that PSU’s Special Collections Department might take toward digitizing its 1490 incunable containing Werner Rolewinck’s Fasciculus temporum and second-edition Malleus Maleficarum. Digitization will reduce wear-and-tear of the volume and allow access to its contents by a wider range of users.