Urban Studies Commons^™

Walking While Black: Racial Bias At The Crosswalk, Kimberly Barsamian Kahn

TREC Project Briefs

This project, led by Kimberly Kahn of Portland State University, explores social identity factors (race and gender) that influence drivers’ behavior in interactions with pedestrians at crosswalks. One dangerous potential point of conflict for pedestrians within the transportation system is interactions with drivers at crosswalks. In 2010, there was one crash-related pedestrian death every two hours and an injury every eight minutes, and racial minorities are disproportionately represented in these pedestrian fatalities. In light of this disparity, this project examines whether racial discrimination occurs at crosswalks, which may lead to disparate crossing experiences and disproportionate safety outcomes.

Racial Bias In Drivers' Yielding Behavior At Crosswalks: Understanding The Effect, Kimberly Barsamian Kahn, Jean M. Mcmahon, Tara Goddard, Arlie Adkins

TREC Final Reports

This project explores social identity factors (race and gender) that influence drivers’ behavior in interactions with pedestrians at crosswalks. One dangerous potential point of conflict for pedestrians within the transportation system is interactions with drivers at crosswalks (NHTSA, 2009). In 2010, there was one crash-related pedestrian death every two hours and an injury every eight minutes, and racial minorities are disproportionately represented in these pedestrian fatalities (CDC, 2013). In light of this disparity, this project examines whether racial discrimination occurs at crosswalks, which may lead to disparate crossing experiences and disproportionate safety outcomes. Racial minorities experience racial discrimination across various …

Does Compact Development Increase Or Reduce Traffic Congestion?, Reid Ewing, Guang Tian, Torrey Lyons

TREC Final Reports

From years of research, we know that compact development that is dense, diverse, well-designed, etc. produces fewer vehicle miles traveled (VMT) than sprawling development. But compact development also concentrates origins and destinations. No one has yet determined, using credible urban form metrics and credible congestion data, the net effect of these countervailing forces on area-wide congestion. Using compactness/sprawl metrics developed for the National Institutes of Health, and congestion data from the Texas Transportation Institute’s (TTI’s) Urban Mobility Scorecard Annual Report database, this study seeks to determine which opposing point of view of sprawl and congestion is correct. It does so …

Does Compact Development Increase Or Reduce Congestion?, Reid Ewing

TREC Project Briefs

The net effects of sprawl or compact development on area-wide traffic congestion have been a subject of debate among transportation researchers.

This project aims to settle the debate using:

• Congestion data from the Texas Transportation Institute’s Urban Mobility Scorecard database;
• Compactness/sprawl metrics developed at the University of Utah.

Compact development may help at the margin, but the greatest reduction in congestion appears to be achieved through expansion of surface streets and higher highway user fees.

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.

The Effects Of Demand-Responsive Parking On Transit Usage And Congestion: Evidence From Sfpark, Nicole S. Ngo, Chandra Kiran Krishnamurth

TREC Final Reports

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, though they have the potential to improve turnover and much needed parking availability in growing cities with limited infrastructure. In this study, we investigate the impacts of SFpark, a demand-responsive pricing parking program in San Francisco that began in 2011. We focus on metered, on-street parking and exploit the timing of SFpark …

Identifying Clusters Of Non-Farm Activity Within Exclusive Farm Use Zones In The Northern Willamette Valley, Nicholas Chun

Dissertations and Theses

This thesis provides an extensive look at where permitted non-farm uses and dwellings have clustered within Exclusive Farm Use (EFU) zones in the Northern Willamette Valley in Oregon. There is a looming concern that non-farm related uses and dwellings, or non-farm development, are conflicting with agricultural preservation strategies. Specifically, non-farm developments can potentially undermine the critical mass of farmland needed to keep the agricultural economy sustainable, but until now, studies have lacked spatially precise data to systematically track these phenomena. This thesis offers methodological contributions towards analyzing these operations and presents a broad account of what has been occurring in …

Travel To Food: Transportation Barriers For The Food Insecure In Tampa Bay, Kevin Salzer, Ann Joslin

TREC Final Reports

In partnership with the Center for Urban Transportation Research (CUTR) at the University of South Florida (USF), the Transportation Innovation Group informed practical transportation solutions aimed at improved food access in Tampa Bay (Hillsborough, Pinellas and Pasco counties). The food pantry/bank sites that are part of Tampa Bay Network to End Hunger (TBNTEH) helped to gather data through a survey and interviews of food-related organizational leadership, staff and volunteers from each site to gain insight into how clients currently access emergency food sites (qualitative). This information was supplemented with a GIS analysis of transit accessibility for the food insecure in …

Transportation Access For The Food Insecure, Ann Joslin

TREC Project Briefs

A NITC small starts project explores transportation barriers for Tampa Bay’s food insecure population, and recommends strategies to help.

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. …

Tod Beats Tad In Affordability Showdown, Brenda Scheer

TREC Project Briefs

A research project compares transportation affordability between transitoriented development (TOD) and transit-adjacent development (TAD).

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 …

Knowing Nature In The City: Comparative Analysis Of Knowledge Systems Challenges Along The 'Eco-Techno' Spectrum Of Green Infrastructure In Portland & Baltimore, Annie Marissa Matsler

Dissertations and Theses

Green infrastructure development is desired in many municipalities because of its potential to address pressing environmental and social issues. However, despite technical optimism, institutional challenges create significant barriers to effective green infrastructure design, implementation, and maintenance. Institutional challenges stem from the disparate scales and facility types that make up the concept of green infrastructure, which span from large-scale natural areas to small engineered bioswales. Across these disparate facilities 1) different performance metrics are used, 2) different institutions have jurisdiction, and, 3) facility types are differentially classified as assets, producing epistemological and ontological variegation across the spectrum of green infrastructure that …

Rogue Disposal & Recycling Simplified Refuse Rate Index: Technical Report, Peter Hulseman, Emma Willingham, Peter Whitehead, Northwest Economic Research Center

Northwest Economic Research Center Publications and Reports

As regulated franchises, waste management services are required to have all rate adjustments approved by local governing bodies. This typically involves supporting the requested adjustment with financial and operational data. The cost-intensive nature of this process limits its frequency. Many jurisdictions conduct a formal review every five years, with interim rates set using a proxy for marginal cost changes, typically an index such as the Consumer Price Index (CPI)1. Rogue Disposal & Recycling (RDR) is governed in such a way in several of the jurisdictions it serves. The central reason for this report is that the CPI has not proven …

Webinar: Land Use Mix And Pedestrian Travel Behavior: Advancements In Conceptualization And Measurement, Steven R. Gehrke

TREC Webinar Series

Smart growth policies have often emphasized the importance of land use mix as an intervention beholding of lasting urban planning and public health benefits. Past transportation-land use research has identified potential efficiency gains achieved by mixed-use neighborhoods and the subsequent shortening of trip lengths; whereas, public health research has accredited increased land use mixing as an effective policy for facilitating greater physical activity.

However, despite the celebrated transportation, land use, and health benefits of improved land use mixing and the extent of topical attention, no consensus has been reached regarding the conceptualization and measurement of this key smart growth principle …

Scappoose, Liza Morehead

Metroscape

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

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.

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 …

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 …

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.

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.

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, …

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 …

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.

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.

The Geography Of The Commute, Steven Howland, Randy Morris

Metroscape

It is a common misperception that low-income populations are transit-dependent or typically do without a car because it is too expensive. While much larger proportions of low-income populations use a mode of transportation other than a personal automobile to commute to work, a majority of them still use a personal automobile. In this edition of the Periodic Atlas, we looked at commuting as it relates to people of color and low-wage workers using the most recent reliable Census data as well as data from the Longitudinal Employer-Household Dynamics Origin-Destination Employment Statistics (LEHD-LODES).

Drivers' Attitudes And Behaviors Toward Bicyclists: Intermodal Interactions And Implications For Road Safety, Tara Beth Goddard

Dissertations and Theses

Road safety concerns are a legitimate concern when promoting increased bicycle use. Currently, the share of bicyclist traffic fatalities and injuries is not proportional to its mode share, and presents both a public health concern and a disincentive to people taking up or continuing to bicycle for transportation. Bicycling is not an inherently dangerous activity; automobile drivers pose the most risk of harm in crashes with bicyclists. Despite that, drivers' attitudes and behaviors toward bicyclists have not enjoyed much systematic study, particularly in the United States. This research explored the dimensions of drivers' attitudes toward bicyclists, including implicit bias and …

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 …

On Being Groped And Staying Quiet. Or, What Kind Of Place An Airplane Can Be, Naomi Adiv

Urban Studies and Planning Faculty Publications and Presentations

This short essay is a reflection on the author’s own experiences with being groped on airplanes written in response to the election of the 45th president, and his proud statements and responses – both before and during the campaign – on how he violates women as a matter of course.