Urban Studies and Planning Commons^™

New Probe Data Sources To Measure Cycling Behavior And Safety, Christopher Cherry

PSU Transportation Seminars

Emerging probe data sources from smartphones on on-board devices are able to measure behavior of cyclists with very high resolution. From this, for the first time, we are able to measure relatively precise behavior that allows new insights into exposure, route choice, safety behavior, or technology choice. Probe data, merged with other data sources, can begin to develop a more complete picture of cyclists on-road behavior.

This presentation will offer examples of analyses done to investigate cyclists behavior using app-based and on-board GPS data in the context of individual cyclists behavior (i.e., app users) and behavior of bikeshare users (i.e., …

California's Paradigm Shift From Los To Vmt As A Transportation Impact Metric: Policies, Politics, And Possibilities, Robert Liberty, Lynn Peterson

PSU Transportation Seminars

As part of California's effort to reduce greenhouse gas emissions, the state has passed a law leading to a radical shift in how it analyzes the traffic impacts of new land use developments and transportation projects. SB 743's goal is to "more appropriately balance the needs of congestion management with statewide goals related to infill development, promotion of public health through active transportation, and reduction of greenhouse gas emissions."

The new measure of transportation impacts will be based on vehicle miles traveled (VMT) instead of level of service (LOS). This ground shift has broad implications for lead agencies, planners, MPOs, …

"Naturally Occurring" Or "Until Market Speculation Starts": Investigating The Precarity Of Affordable Rental Housing And The Potential For Displacement Along Planned Transit Lines, Lisa K. Bates

Urban Studies and Planning Faculty Publications and Presentations

New transit infrastructure is a double-edged sword for low-income renters: one the one hand, increased mobility supports access to jobs and critical services; but if transit-oriented development fails to include and preserve affordable housing, they may be pushed out by rising rents. The question of whether public investments spur gentrification and displacement have created intense controversy around planned transit extensions in our region. My research on precarious rental housing illuminates the specific mechanisms of housing displacement and challenges for housing affordability in the single-family/duplex and the large multifamily rental market. The loss of low-cost housing is occurring even without new …

Preserving Housing Choice And Opportunity: A Study Of Apartment Building Sales And Rents, Seyoung Sung, Lisa K. Bates

Urban Studies and Planning Faculty Publications and Presentations

NOAH sales show precariousness of this rental housing at a regional scale.

• Active transactions of multifamily rental properties have been disproportionately NOAH. There have been over two thousand transactions of NOAH buildings in the Portland metro area from 2006 to 2017 — over 68,000 units of housing. These sales are accelerating, with over 20 percent occurring in just the last 18 months.
• Sales prices for multifamily rental properties have increased substantially, making preservation of affordable rents more challenging. Regionally, the average sale price increased by 78 percent between 2010 and 2017; during this period there was a 43 percent …

Active And Public Transportation Connectivity Between North Temple Tod And Jordan Park River Trail, Ivis Garcia Zambrana, Christie Oostema

TREC Final Reports

The project seeks to capitalize on existing community assets—several TOD stations and a regional bike and pedestrian trail system—by studying how these can be linked. The overarching goal of this project is to increase scholarship on networking safe routes that can encourage public and active transportation choices and thus, encourage a healthier lifestyle and advance sustainability. By expanding pedestrian, bicycle and transit connections to green space and offering the most potential for TOD, this proposal clearly demonstrates the greatest priorities of NITC. Moreover, nationwide, communities like Salt Lake’s West Side are in greater need of sustainable transportation choices that foster …

Portland Msa Economic & Population Outlook October 2017, Thomas Potiowsky, Portland State University. Northwest Economic Research Center

Northwest Economic Research Center Publications and Reports

NERC's binannual forecast of employment, income, housing permits, and house prices for the Portland MSA. The October release does not reiterate the population forecast from the April edition, but does include a long-run income forecast.

2017 Point-In-Time: Count Of Homelessness In Portland/Gresham/Multnomah County, Oregon, Uma Krishnan, Deborah Elliott

Publications, Reports and Presentations

The 2017 Point-in-Time (PIT) Count of Homelessness provides a snapshot of people who were experiencing homelessness on the night of Wednesday, February 22, 2017, in Portland, Gresham, and Multnomah County, Oregon. The US Department of Housing and Urban Development (HUD) requires communities to count people living in emergency shelters, transitional housing or places not meant for human habitation (these people are collectively known as “HUD homeless”) on a single night (a “point in time”) at least once every two years. This enumeration is one way of understanding the levels and trends in unmet need for shelter and permanent housing within …

Webinar: The Effects Of Demand-Responsive Parking On Transit Usage And Congestion: Evidence From Sfpark, Nicole Ngo

TREC Webinar Series

Parking is a serious issue in many urban areas, especially those experiencing rapid population growth. To address this problem, some cities have implemented demand-responsive pricing programs, where parking prices vary depending on the occupancy rate in a previous period. Yet, few empirical studies have rigorously evaluated these programs. In this study, we investigate the impacts of SFpark, a demand-responsive pricing parking program in San Francisco that began in 2011. We observe effects on three important aspects of urban transportation: parking availability, transit bus ridership and congestion. The timing of this program is plausibly exogenous to factors that affect these outcomes …

Following The Money From Investments To Outcomes, Robert Zako, Rebecca Lewis

TREC Project Briefs

While it’s accepted that mixed-use development promotes active travel, researchers don’t have a consensus on exactly how land use determines people’s travel patterns.

The research examined:

• The relationship between pedestrian travel and land use mix;
• The impact of land use mix on pedestrian travel;
• How operationalizing land use mix influences individual travel behavior

This work contributes theoretical and empirical tools for research and practice in transportation and land use planning.

Prosperity And Industrial Development: Review Of Concepts And Measurements, Emma Willingham, Peter Hulseman

Northwest Economic Research Center Publications and Reports

This report, researched and written for the Port of Portland by the Northwest Economic Research Center, summarizes local efforts to measure and improve regional prosperity, both within and outside of Portland, Oregon, and offers a framework for assessing varying industrial land uses with respect to prosperity. As part of this review, definitions of prosperity from a variety of sources are presented. The purpose of the report is dual: First, a context for community and regional economic prosperity is established via the review of existing definitions and initiatives, and secondly, NERC offers a framework for assessing specific uses in terms of …

Webinar: Breaking Barriers To Bike Share: Insights On Equity, Nathan Mcneil, Jennifer Dill, John Macarthur

TREC Webinar Series

While the number of public bike share systems in the United States grew considerably in recent years, early evidence indicated that many systems were not serving the diverse populations of cities, particularly lower-income residents and people of color. Lack of bike share stations in neighborhoods with people of color and/or lower incomes is one factor; however, considerable disparities appear to persist even when stations are placed in these communities.

Efforts to overcome access and use barriers (such as cost, payment options, and familiarity with the system) to bike share for underserved communities have been initiated in a number of cities. …

How Does Transportation Affordability Vary Among Tods, Tads, And Other Areas?, Brenda Scheer, Reid Ewing, Keunhyun Park, Shabnam Sifat Ara Khan

TREC Final Reports

Transit-oriented development (TOD) has gained popularity worldwide as a sustainable form of urbanism; it concentrates development near a transit station so as to reduce auto-dependency and increase ridership. Existing travel behavior studies in the context of TOD, however, are limited in terms of small sample size, inconsistent TOD classification methods, and failure to control for residential self-selection. Thus, this study has three research questions. First, how can we distinguish between Transit-oriented development (TOD) and Transit-adjacent development (TAD)? Second, how do travel behaviors vary between TODs and TADs? Third, how does transportation affordability vary between TODs and TADs? This study utilizes …

Source Of Down Payment, Institute Of Portland Metropolitan Studies

Metroscape

A statistical snapshot of the percentage of owner-occupied housing stock, by major source of down payment, in 2015.

Spanning The Region: A Survey Of Bridges In The Metroscape, Andrés Oswill

Metroscape

Bridges get us where we need to go. They also have character that contributes to a sense of place. Here we profile a selection of bridges in the Portland Metro area to understand the history and logistics of each bridge. When was the bridge built, how was it funded, who maintains it? The bridges we selected reflect the area’s wide variations in bridge style and management. Some of the bridges are county owned; others are run by a state or city transportation department. The bridges range in age, but all are inspected every twenty-four months. A bridge’s story offers important …

Cultivating The Technology Ecosystem: An Interview With Skip Newbury, Sheila Martin

Metroscape

An interview with Skip Newbury, President and CEO of the Technology Association of Oregon (TAO). He is a frequent speaker on technology trends and topics, economic development, public-private partnerships and civic innovation. Before joining the TAO, Skip served as an economic development policy advisor to Portland Mayor Sam Adams, where he helped create Portland’s first comprehensive economic development strategy in 16 years, recognizing software as a key industry cluster.

New Transit Developments: A Double-Edged Sword, Lisa K. Bates, Aaron Golub, Devin Macarthur, Seyoung Sung

TREC Project Briefs

Researchers analyze the projected impacts of a proposed transit investment on affordability and mobility in a Southeast Portland corridor.

What Do We Know About Location Affordability In U.S. Shrinking Cities?, Joanna Ganning, Jenna Rosie Tighe

TREC Final Reports

In late 2013, the Department of Housing and Urban Development (HUD) launched the Location Affordability Index (LAI) portal. Their dataset uses models to estimate typical amount households spend on housing and transportation at the block group level, and calculates “H + T Affordability,” the percent of household income spent on these items. In our previous research, we analyzed 81 shrinking cities to determine how location affordability differs across various neighborhoods. Our results suggest that households in declining neighborhoods, as compared to stable or redeveloping neighborhoods, face the greatest H + T affordability challenges in shrinking cities. Furthermore, in declining neighborhoods, …

Impacts Of Bus Rapid Transit (Brt) On Surrounding Residential Property Values, Victoria Perk, Martin Catalá, Maximillian Mantius, Katrina Corcoran

TREC Final Reports

As bus rapid transit (BRT) grows in popularity in the United States, a better understanding of the mode’s impacts on land uses and property values is needed. Economic theory suggests, and literature has shown, that people are willing to pay higher housing costs to lower their costs of transportation to areas of economic activity. Does high-quality BRT service reliably provide such access and, thereby, increase residential property values? The hypothesis is that property values are higher closer to BRT stations, reflecting a premium for the access provided by the BRT service to various goods, services, employment, education, and recreation. There …

Homes Close To Fast Transit: The Value Is Still Rising, Victoria Perk, Martin Catalá, Maximillian Mantius, Katrina Corcoran

TREC Project Briefs

This research contributes to the relatively small body of literature on property value impacts of BRT in the U.S. by conducting a case study on Lane Transit District’s EmX BRT service in Eugene, Oregon, using econometric modeling techniques to estimate changes in property values associated with the BRT. The analysis is based on hedonic price regression analysis, where sale prices are modeled using several property characteristics that contribute to the market or sale price. The findings of this research indicate that the EmX BRT system does positively impact surrounding single-family home sale prices.

When Cities Shrink, Affordability Does Too, Joanna Ganning, Jenna Rosie Tighe

TREC Project Briefs

To better understand the real costs of housing and transportation in a declining urban context, NITC researchers implemented a household survey to determine whether the assumptions made in existing research literature and in the LAI regarding household expenditures and transportation accessibility hold true when analyzing shrinking cities—generally, cities characterized by a long-term loss in occupied housing units. The project was led by Joanna Ganning of Cleveland State University, who has conducted previous research into shrinking cities with the support of the NITC program.

Scappoose, Liza Morehead

Metroscape

A brief snapshot of Scappoose, Oregon, discussing its history, growth and development, and a look to its future.

A New Vision For Timber City Usa, Kerry Politzer

Metroscape

A look at the city of Willamina, Oregon, as it attempts to transition from a timber-reliant town to a sustainable future. Provides a brief history of the community and its economic struggles, and its attempts to foster economic development though tourism, arts and winemaking.

Planning Ahead For Livable Communities Along The Powell-Division Brt: Neighborhood Conditions And Change, Lisa K. Bates, Aaron Golub, Devin Macarthur, Seyoung Sung

TREC Final Reports

New transit investments can be a double-edged sword for disadvantaged communities (e.g., those included in environmental justice and Title VI protected classes). Transit investments improve communities’ mobility and access, and may improve health with reduced driving. However, there is also the potential for transit-oriented development (TOD) to spur gentrification and displacement if affordable housing is lost. Understanding transit corridor conditions and change with new infrastructure is important for learning how to mitigate negative effects and support inclusive communities with access to transit for lower-income households. The planning of a new bus rapid transit line along the Powell-Division corridor in Portland-Gresham …

A Simulator-Based Analysis Of Engineering Treatments For Right-Hook Bicycle Crashes At Signalized Intersections, Jennifer Warner, David S. Hurwitz, Christopher M. Monsere, Kayla Fleskes

Civil and Environmental Engineering Faculty Publications and Presentations

A right-hook crash is a crash between a right-turning motor vehicle and an adjacent through-moving bicycle. At signalized intersections, these crashes can occur during any portion of the green interval when conflicting bicycles and vehicles are moving concurrently. The objective of this research was to evaluate the effectiveness of four types of engineering countermeasures – regulatory signage, intersection pavement marking, smaller curb radius, and protected intersection design – at modifying driver behaviors that are known contributing factors in these crashes. This research focused on right-hook crashes that occur during the latter stage of the circular green indication at signalized intersections …

China's Motorization Wave And The Place Of Emerging Technologies, Christopher Cherry

PSU Transportation Seminars

E-bikes, E-Cars, Carshare, Bikeshare, and Micro-EVs in China have shaken up the traditional motorization pathways that have occurred in developing countries in the past. The combination of emerging vehicle technologies, urban and environmental constraints, and heavy-handed policy make China's motorization processes unique in the world—but how China motorizes has far-reaching impacts based on sheer volume of vehicles and population.

This seminar discusses the results of a six-year NSF CAREER project to explore China's motorization processes, combining behavioral and environmental modeling approaches to assess the impacts of emerging vehicle technologies on motorization and ultimately environmental sustainability. The focus is mostly on …

Measuring The Impacts Of Social Media On Advancing Public Transit, Jenny H. Liu, Xuegang Ban, O. A. Elrahman

TREC Final Reports

This project is a collaboration between Portland State University (PSU) and the Center for Infrastructure Transportation & Environment (CITE) at Rensselaer Polytechnic Institute seeking to develop performance measures for assessing the impacts of social media on promoting public transit. Revolutionary changes have occurred in the communication landscape, and there has been a rapid diffusion of social media use as a means of communicating transit information to the public. Significant resources are being directed to the use of social media in communication, yet little effort exists that measures the impacts of these popular vehicles of communication. Rarely studied is the role …

Focusing On Equity In Regional Plans, Kristine M. Williams

TREC Project Briefs

Metropolitan planning organizations (MPOs) have long been required to consider the equity implications of their regional transportation plans and processes.

Towards Systematic Prediction Of Urban Heat Islands: Grounding Measurements, Assessing Modeling Techniques, Jackson Voelkel, Vivek Shandas

Urban Studies and Planning Faculty Publications and Presentations

While there exists extensive assessment of urban heat, we observe myriad methods for describing thermal distribution, factors that mediate temperatures, and potential impacts on urban populations. In addition, the limited spatial and temporal resolution of satellite-derived heat measurements may limit the capacity of decision makers to take effective actions for reducing mortalities in vulnerable populations whose locations require highly-refined measurements. Needed are high resolution spatial and temporal information for urban heat. In this study, we ask three questions: (1) how do urban heat islands vary throughout the day? (2) what statistical methods best explain the presence of temperatures at sub-meter …

Breaking Barriers To Bike Share: Insights From Residents Of Traditionally Underserved Neighborhoods, Nathan Mcneil, Jennifer Dill, John Macarthur, Joseph Broach, Steven Howland

TREC Final Reports

Evidence has shown that higher income and white populations are overrepresented in both access to and use of bike share. Efforts to overcome underserved communities’ barriers to access and use of bike share have been initiated in a number of cities, including those working with the Better Bike Share Partnership (BBSP) to launch and test potentially replicable approaches to improve the equity outcomes. This report describes findings from a survey of residents living near bike share stations placed in underserved communities of select BBSP cities: Philadelphia, Chicago, and Brooklyn. These were neighborhoods targeted for focused outreach related to BBSP programs, …

Annual Metro Regional Trail Count And Why Local Extrapolation Factors Matter, Geoff Gibson

PSU Transportation Seminars

Metro, Portland's regional governing agency, conducts annual two-hour counts along its regional trail every September. This upcoming fall (2017) will be the 10th year that the counts have been held, which means we at Metro can finally start seeing noticeable, long-lasting trends in the regional trail network. Perhaps more importantly, we are seeing how these data have directly impacted investments in future trail, bicycle, and pedestrian projects.

This seminar will cover the history of the program, details of how it's conducted and why it's conducted that way, how data are used (including an inside look at future iterations of Metro's …