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Urban Studies and Planning Faculty Publications and Presentations

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Full-Text Articles in Urban Studies

Fight, Flight, Freeze 2: An Update On Tenants’ Responses To Eviction Across Urban And Rural Oregon, Natalie J. Cholula, Lisa K. Bates, Alex Farrington, Marisa Zapata, Jacen Greene, Colleen Carroll Oct 2025

Fight, Flight, Freeze 2: An Update On Tenants’ Responses To Eviction Across Urban And Rural Oregon, Natalie J. Cholula, Lisa K. Bates, Alex Farrington, Marisa Zapata, Jacen Greene, Colleen Carroll

Urban Studies and Planning Faculty Publications and Presentations

In the original "Fight, Flight, Freeze" (FFF) report, the Evicted in Oregon researchers reported on the experiences of tenants who faced eviction during the COVID-19 pandemic and their access to resources. This brief provides updated analysis, now including 121 tenants with eviction experiences in Oregon. The analysis includes 13 new focus groups with tenants in both rural and urban Oregon, focusing on the type of support they received while navigating eviction. These groups represent tenants from diverse backgrounds.

Using the fight-flight-freeze framework, we analyzed tenants' reactions to eviction. We also report the resources they accessed after being threatened with eviction …


Difference In Travel Behavior Between Immigrants In The U.S. And U.S. Born Residents: The Immigrant Effect For Car-Sharing, Ride-Sharing, And Bike-Sharing Services, Sangwan Lee, Michael J. Smart, Aaron Golub Jan 2021

Difference In Travel Behavior Between Immigrants In The U.S. And U.S. Born Residents: The Immigrant Effect For Car-Sharing, Ride-Sharing, And Bike-Sharing Services, Sangwan Lee, Michael J. Smart, Aaron Golub

Urban Studies and Planning Faculty Publications and Presentations

Understanding immigrants’ travel behavior is important to transportation planners and policymakers working to implement better transportation planning and public policies to serve those needs. The recent changes to the transportation system, specifically, the recent emergence of shared mobility services, such as car‐sharing, ride‐ sharing, and bike‐sharing, may have resulted in changes in how immigrants travel. Thus, we explored two research questions: (1) whether immigrants in the U.S. are more likely to rely on the three newly emerging transportation modes than US‐born persons, and (2) whether the assimilation theory can be applied to the modes. To answer these questions, we used …


Integrating Diverse Perspectives For Managing Neighborhood Trees And Urban Ecosystem Services In Portland, Or (Us), Lorena Nascimento, Vivek Shandas Jan 2021

Integrating Diverse Perspectives For Managing Neighborhood Trees And Urban Ecosystem Services In Portland, Or (Us), Lorena Nascimento, Vivek Shandas

Urban Studies and Planning Faculty Publications and Presentations

Municipalities worldwide are increasingly recognizing the importance of urban green spaces to mitigate climate change’s extreme effects and improve residents’ quality of life. Even with extensive earlier research examining the distribution of tree canopy in cities, we know little about human perceptions of urban forestry and related ecosystem services. This study aims to fill this gap by examining the variations in socioeconomic indicators and public perceptions by asking how neighborhood trees and socioeconomic indicators mediate public perceptions of ecosystem services availability. Using Portland, Oregon (USA) as our case study, we assessed socioeconomic indicators, land cover data, and survey responses about …


Incorporating Local Foods Into Low-Income Families’ Home-Cooking Practices: The Critical Role Of Sustained Economic Subsidies, Jennifer Gaddis, Amy K. Coplen, Molly Clark-Barol, Allea Martin, Claire K. Barrett, Lauren Lubowicki Nov 2020

Incorporating Local Foods Into Low-Income Families’ Home-Cooking Practices: The Critical Role Of Sustained Economic Subsidies, Jennifer Gaddis, Amy K. Coplen, Molly Clark-Barol, Allea Martin, Claire K. Barrett, Lauren Lubowicki

Urban Studies and Planning Faculty Publications and Presentations

Alternative food practices, including farmers markets and CSAs, are often inaccessible to lowincome families. Subsidized CSAs and fruit and vegetable prescription programs have the potential to decrease food insecurity, increase fresh fruit and vegetable consumption, and generate better health outcomes. However, several challenges can limit logistics of distribution and an inability to cook from scratch due to a lack of kitchen infrastructure, time, or skills. In this paper, we investigate two dietrelated health programs conducted with community partners in Madison, Wisconsin, and Portland, Oregon. We used photovoice to evaluate and enhance these programs, which supplied lowincome participants with free or …


The Role Of Building Characteristics, Demographics, And Urban Heat Islands In Shaping Residential Energy Use, Chrissi Argyro Antonopoulos, Alec Trusty, Vivek Shandas Feb 2020

The Role Of Building Characteristics, Demographics, And Urban Heat Islands In Shaping Residential Energy Use, Chrissi Argyro Antonopoulos, Alec Trusty, Vivek Shandas

Urban Studies and Planning Faculty Publications and Presentations

As global temperatures continue to rise, questions about infrastructure capacity to keep up with energy demand are increasingly germane. Energy demand is mediated by several structural and environmental conditions, though we have a limited understanding about the role of differences in local ambient temperatures as a predictor for energy demand. This study assesses the effects of residential building structure, socio-demographics, and ambient temperature conditions of a neighborhood to overall energy expenditures of a household. Using annual utility billing and demographic data, existing tax-lot records, and an unusually high-resolution description of ambient temperatures, we ask two research questions: (1) What role …


The Effects Of Historical Housing Policies On Resident Exposure To Intra-Urban Heat: A Study Of 108 Us Urban Areas, Jeremy Hoffman, Vivek Shandas, Nicholas Pendleton Jan 2020

The Effects Of Historical Housing Policies On Resident Exposure To Intra-Urban Heat: A Study Of 108 Us Urban Areas, Jeremy Hoffman, Vivek Shandas, Nicholas Pendleton

Urban Studies and Planning Faculty Publications and Presentations

The increasing intensity, duration, and frequency of heat waves due to human-caused climate change puts historically underserved populations in a heightened state of precarity, as studies observe that vulnerable communities—especially those within urban areas in the United States—are disproportionately exposed to extreme heat. Lacking, however, are insights into fundamental questions about the role of historical housing policies in cauterizing current exposure to climate inequities like intra-urban heat. Here, we explore the relationship between “redlining”, or the historical practice of refusing home loans or insurance to whole neighborhoods based on a racially motivated perception of safety for investment, with present-day summertime …


Urban-Rural Surface Temperature Deviation And Intra-Urban Variations Contained By An Urban Growth Boundary, Kevan B. Moffett, Yasuyo Makido, Vivek Shandas Nov 2019

Urban-Rural Surface Temperature Deviation And Intra-Urban Variations Contained By An Urban Growth Boundary, Kevan B. Moffett, Yasuyo Makido, Vivek Shandas

Urban Studies and Planning Faculty Publications and Presentations

The urban heat island (UHI) concept describes heat trapping that elevates urban temperatures relative to rural temperatures, at least in temperate/humid regions. In drylands, urban irrigation can instead produce an urban cool island (UCI) effect. However, the UHI/UCI characterization suffers from uncertainty in choosing representative urban/rural endmembers, an artificial dichotomy between UHIs and UCIs, and lack of consistent terminology for other patterns of thermal variation at nested scales. We use the case of a historically well-enforced urban growth boundary (UGB) around Portland (Oregon, USA): to explore the representativeness of the surface temperature UHI (SUHI) as derived from Moderate Resolution Imaging …


Access To Opportunity Project: Final Report, Shawn Flanigan, Emily Lieb, Lisa K. Bates, Raphael Bostic, Sheryl V. Whitney Apr 2019

Access To Opportunity Project: Final Report, Shawn Flanigan, Emily Lieb, Lisa K. Bates, Raphael Bostic, Sheryl V. Whitney

Urban Studies and Planning Faculty Publications and Presentations

This project’s goal is to lift up promising approaches, suggest new strategies and encourage honest conversations that result in public policy solutions to income and racial segregation and poverty. The overarching question that motivates this work is:

  • What are effective policies and strategies that promote access to high-opportunity amenities for low-income families?

As a first step, the researchers surveyed efforts on the ground in the metropolitan areas encompassing Seattle, Washington; Portland, Oregon; and San Diego, California, to determine whether there were any candidates for deeper study. We selected these three metropolitan areas for several reasons. First, prior interaction revealed that …


Appetite For Growth: Challenges To Scale For Food And Beverage Makers In Three Us Cities, Greg Schrock, Marc Doussard, Laura Wolf-Powers, Steven Marotta, Max Eisenburger Feb 2019

Appetite For Growth: Challenges To Scale For Food And Beverage Makers In Three Us Cities, Greg Schrock, Marc Doussard, Laura Wolf-Powers, Steven Marotta, Max Eisenburger

Urban Studies and Planning Faculty Publications and Presentations

Food and beverage (FaB) manufacturing represents a promising opportunity for small-scale “makers” and local economic development. The growth of entrepreneurial maker businesses can be understood in terms of segmentation of market demand, emergence of new intermediaries, and availability of affordable production infrastructure. Yet the ease of starting maker businesses stands in contrast with the challenges of achieving growth and scale as a manufacturer. Through semistructured interviews with 31 FaB makers in Chicago, New York City, and Portland, Oregon, the authors analyze the challenges facing maker–entrepreneurs in this sector. The authors find that the everyday character of food and the relative …


A Comparison Of Neighborhood-Scale Interventions To Alleviate Urban Heat In Doha, Qatar, Salim Ferwati, Cynthia Skelhorn, Vivek Shandas, Yasuyo Makido Jan 2019

A Comparison Of Neighborhood-Scale Interventions To Alleviate Urban Heat In Doha, Qatar, Salim Ferwati, Cynthia Skelhorn, Vivek Shandas, Yasuyo Makido

Urban Studies and Planning Faculty Publications and Presentations

Recent evidence suggests that many densely populated areas of the world will be uninhabitable in the coming century due to the depletion of resources, climate change, and increasing urbanization. This poses serious questions regarding the actions that require immediate attention, and opportunities to stave off massive losses of infrastructure, populations, and financial investments. The present study utilizes microclimate modeling to examine the role of landscape features as they affect ambient temperatures in one of the fastest growing regions of the world: Doha, Qatar. By modeling three study sites around Doha—one highly urbanized, one newly urbanizing, and one coastal low-density urbanized—the …


Integrating Satellite And Ground Measurements For Predicting Locations Of Extreme Urban Heat, Vivek Shandas, Jackson Lee Voelkel, Joseph Williams, Jeremy Hoffman Jan 2019

Integrating Satellite And Ground Measurements For Predicting Locations Of Extreme Urban Heat, Vivek Shandas, Jackson Lee Voelkel, Joseph Williams, Jeremy Hoffman

Urban Studies and Planning Faculty Publications and Presentations

The emergence of urban heat as a climate-induced health stressor is receiving increasing attention among researchers, practitioners, and climate educators. However, the measurement of urban heat poses several challenges with current methods leveraging either ground based, in situ observations, or satellite-derived surface temperatures estimated from land use emissivity. While both techniques contain inherent advantages and biases to predicting temperatures, their integration may offer an opportunity to improve the spatial resolution and global application of urban heat measurements. Using a combination of ground-based measurements, machine learning techniques, and spatial analysis, we addressed three research questions: (1) How much do ambient temperatures …


Capturing The Built Environment-Travel Interaction For Strategic Planning: Development Of A Multimodal Travel Module For The Regional Strategic Planning Model (Rspm), Liming Wang, Brian Gregor, Huajie Yang, Tara Weidner, Anthony Knudson Dec 2018

Capturing The Built Environment-Travel Interaction For Strategic Planning: Development Of A Multimodal Travel Module For The Regional Strategic Planning Model (Rspm), Liming Wang, Brian Gregor, Huajie Yang, Tara Weidner, Anthony Knudson

Urban Studies and Planning Faculty Publications and Presentations

Integrated land use and transportation models have evolved along a spectrum from simple sketch planning models to complex microsimulation models. While each has its niche, they are largely unable to balance the flexibility and realism of microsimulation and the speed and interactivity of simple models. The Regional Strategic Planning Model (RSPM) aims to fill this gap by taking a microsimulation approach while making other simplifications in order to model first-order effects quickly. It enables planners to consider the robustness of prospective policies in the face of future uncertainties by accepting a broad range of inputs and allowing rapid simulations of …


Small Steps On The Long Journey To Equality: A Timeline Of Post-Legislation Civil Rights Struggles In Portland, Leanne Claire Serbulo Oct 2018

Small Steps On The Long Journey To Equality: A Timeline Of Post-Legislation Civil Rights Struggles In Portland, Leanne Claire Serbulo

Urban Studies and Planning Faculty Publications and Presentations

Leanne Serbulo presented a timeline of civil rights struggles in Portland, Oregon, at a public history roundtable at the Oregon Historical Society commemorating the fiftieth anniversary of the 1968 Fair Housing Act. In this record of her presentation, Serbulo documents milestones in dismantling racial discrimination between 1949 and 1990. For this timeline, Serbulo researched Metropolitan Human Relations Commission (MHRC) records held at the Portland City Archives and traces how the commission navigated the process of improving race relations in the city and Multnomah County. As Serbulo argues, “civil rights legislation was simply the first step in a long and unfinished …


A Fair Distribution Of Accessibility: Interpreting Civil Rights Regulations For Regional Transportation Plans, Karel Martens, Aaron Golub May 2018

A Fair Distribution Of Accessibility: Interpreting Civil Rights Regulations For Regional Transportation Plans, Karel Martens, Aaron Golub

Urban Studies and Planning Faculty Publications and Presentations

The US Department of Transportation requires metropolitan planning organizations (MPOs) to consider social equity in their plans and projects in accordance with civil rights–related laws. In this paper, we suggest four interpretations of directives’ distributional standards in relation to accessibility. Employing this framework, we review the equity assessments of regional plans of the ten largest MPOs in the United States. Against our expectations, we find that MPOs tend to employ relatively strong distributional standards, albeit never explicitly. We argue that more explicit guidance regarding standards would improve the fairness and consistency of planning practice


Assessing Vulnerability To Urban Heat: A Study Of Disproportionate Heat Exposure And Access To Refuge By Socio-Demographic Status In Portland, Oregon, Jackson Voelkel, Dana E. Hellman, Ryu Sakuma, Vivek Shandas Mar 2018

Assessing Vulnerability To Urban Heat: A Study Of Disproportionate Heat Exposure And Access To Refuge By Socio-Demographic Status In Portland, Oregon, Jackson Voelkel, Dana E. Hellman, Ryu Sakuma, Vivek Shandas

Urban Studies and Planning Faculty Publications and Presentations

Extreme urban heat is a powerful environmental stressor which poses a significant threat to human health and well-being. Exacerbated by the urban heat island phenomenon, heat events are expected to become more intense and frequent as climate change progresses, though we have limited understanding of the impact of such events on vulnerable populations at a neighborhood or census block group level. Focusing on the City of Portland, Oregon, this study aimed to determine which socio-demographic populations experience disproportionate exposure to extreme heat, as well as the level of access to refuge in the form of public cooling centers or residential …


Goodbye To The National Endowment For The Arts?, Naomi Adiv Feb 2018

Goodbye To The National Endowment For The Arts?, Naomi Adiv

Urban Studies and Planning Faculty Publications and Presentations

In the shadow of the truly egregious policies rolled out by the Trump administration in their first year in office (anti-Muslim and anti-immigrant policies, de-staffing the State Department into paralysis, shrinking national monuments, strangling the ACA), and a general tone of chaos surrounding the office of the presidency, a standing threat remains. That is: among other cuts, freezes and gag orders, the administration has vowed to defund the National Endowment for the Arts (NEA), National Endowment for the Humanities (NEH) and the Corporation for Public Broadcasting (CPB). Here, I demonstrate how current political arguments around defunding the NEA are derived …


Hedonic Modeling Of Commercial Property Values: Distance Decay From The Links And Nodes Of Rail And Highway Infrastructure, Kihwan Seo, Deborah Salon, Michael Kuby, Aaron Golub Feb 2018

Hedonic Modeling Of Commercial Property Values: Distance Decay From The Links And Nodes Of Rail And Highway Infrastructure, Kihwan Seo, Deborah Salon, Michael Kuby, Aaron Golub

Urban Studies and Planning Faculty Publications and Presentations

This study investigates the impacts of positive and negative externalities of highways and light rail on commercial property values in Phoenix, Arizona. We hypothesize that the positive externality (i.e., accessibility) of highway and light rail accrues at exits and stations, whereas nodes and links of highways and light rail emanate negative effects. Positive and negative effects decay with increasing distance and are captured by multiple distance bands. Hypotheses are tested using a spatial error regression model. Results show that commercial property values are positively and significantly associated with the accessibility benefits of transport nodes. The distance-band coefficients form a typical …


Growth Without Displacement: A Test For Equity Planning In Portland, Lisa K. Bates Jan 2018

Growth Without Displacement: A Test For Equity Planning In Portland, Lisa K. Bates

Urban Studies and Planning Faculty Publications and Presentations

Portland, Oregon, is considered a pioneer of regionalism, integrated land-use and transportation planning, and sustainability as a criterion for planning policy. After four decades of land-use planning, Portland has a national and international reputation for urban livability and climate change mitigation. While these successes are laudable, in the past decade Portland’s underrepresented and underserved communities have been raising a voice to demand that planners address issues of income and racial inequality. In response to and in collaboration with communities, over the past five years Portland’s Bureau of Planning and Sustainability (BPS) has adopted an equity strategy with a racial justice …


Book Review Of, City Unsilenced: Urban Resistance And Public Space In The Age Of Shrinking Democracy, Naomi Adiv Jan 2018

Book Review Of, City Unsilenced: Urban Resistance And Public Space In The Age Of Shrinking Democracy, Naomi Adiv

Urban Studies and Planning Faculty Publications and Presentations

Book review of, Jeffrey Hou and Sabine Knierbein, City Unsilenced: Urban Resistance and Public Space in the Age of Shrinking Democracy, New York and London: Routledge, 2017.

In response to austerity politics and market-based governance of urban land, large-scale social protest has erupted in the public spaces of cities across the globe. In City Unsilenced: Urban Resistance and Public Space in the Age of Shrinking Democracy (Routledge, 2017), editors Jeffrey Hou of UW-Seattle and Sabine Knierbein of SKuOR, Vienna – both scholars of the dynamics of public space – have compiled the stories, strategies and theories derived from social movements …


"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 Nov 2017

"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 Nov 2017

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 …


On Being Groped And Staying Quiet. Or, What Kind Of Place An Airplane Can Be, Naomi Adiv Jun 2017

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.


Towards Systematic Prediction Of Urban Heat Islands: Grounding Measurements, Assessing Modeling Techniques, Jackson Voelkel, Vivek Shandas Jun 2017

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 …


Plans And Living Practices For The Green Campus Of Portland State University, Yoon Jung Choi, Minjung Oh, Jihye Kang, Loren Lutzenhiser Feb 2017

Plans And Living Practices For The Green Campus Of Portland State University, Yoon Jung Choi, Minjung Oh, Jihye Kang, Loren Lutzenhiser

Urban Studies and Planning Faculty Publications and Presentations

This study aims to comprehend Portland State University (PSU)’s green campus strategies, and students’ level of knowledge and living practices relating to green campus. PSU’s sustainable campus plan has been nationally and internationally recognized. A literature review, field investigation, and interviews were conducted to ascertain the PSU green campus strategies. This study also used a survey to understand students’ level of knowledge and practices. The survey results were analyzed by SPSS. Green campus projects at PSU were operated by official organizations and funded according to PSU’s long term plans in 12 multilateral categories: administration, energy, water, climate action, green buildings, …


Do People’S Perceptions Of Neighborhood Bikeability Match “Reality”?, Liang Ma, Jennifer Dill Jan 2017

Do People’S Perceptions Of Neighborhood Bikeability Match “Reality”?, Liang Ma, Jennifer Dill

Urban Studies and Planning Faculty Publications and Presentations

Do people perceive the built environment the same as we objectively measure it? If not, what are the relative roles of the objective versus the perceived environment on bicycling behavior? This study, based on data from Portland, Oregon, explored the match or mismatch between the objective and perceived bicycling environment and how it affects people’s bicycling behavior. The descriptive analysis indicated a fair agreement between perceived and objective measures. Older adults, women having children, less-educated and lower-income persons, and those who bicycle less tended to perceive their high-bikeable environment (measured objectively) as being a low-bikeable environment. In addition to the …


Coming Of Age At The End Of Nature: A Generation Faces Living On A Changed Planet, Amy K. Coplen Oct 2016

Coming Of Age At The End Of Nature: A Generation Faces Living On A Changed Planet, Amy K. Coplen

Urban Studies and Planning Faculty Publications and Presentations

This chapter appears in "Coming of Age at the End of Nature: A Generation Faces Living on a Changed Planet," published by Trinity University Press.

Coming of Age at the End of Nature explores a new kind of environmental writing. This powerful anthology gathers the passionate voices of young writers who have grown up in an environmentally damaged and compromised world. Each contributor has come of age since Bill McKibben foretold the doom of humanity’s ancient relationship with a pristine earth in his prescient 1988 warning of climate change, The End of Nature.

What happens to individuals and societies …


Developing High-Resolution Descriptions Of Urban Heat Islands: A Public Health Imperative, Jackson Voelkel, Vivek Shandas, Brendon Haggerty Sep 2016

Developing High-Resolution Descriptions Of Urban Heat Islands: A Public Health Imperative, Jackson Voelkel, Vivek Shandas, Brendon Haggerty

Urban Studies and Planning Faculty Publications and Presentations

Extreme heat events affect the most vulnerable human populations and are a lethal health hazard to urban dwellers globally; in the United States, extreme heat causes more deaths annually than all other weather events and natural hazards combined (1). Previous studies described urban heat islands as isolated, static, monolithic areas of cities. We challenged this contention by hypothesizing that diurnal temperature cycles and diverse landscape features create variation in places that amplify heat (2). A temporal description of urban heat islands would identify populations that are susceptible to heat stress, particularly at night, when most people are asleep and unable …


Understanding Social Media Program Usage In Public Transit Agencies, Jenny H. Liu, Wei Shi, O. A. Elrahman, Xuegang Ban, Jack M. Reilly Sep 2016

Understanding Social Media Program Usage In Public Transit Agencies, Jenny H. Liu, Wei Shi, O. A. Elrahman, Xuegang Ban, Jack M. Reilly

Urban Studies and Planning Faculty Publications and Presentations

Social media has been gaining prominence in public transit agencies in their communication strategies and daily management. This study aims to better understand recent trends in social media usage in public transit agencies, to examine which agencies use what kind of social media programs for what purposes, and how they measure their programs. A survey was conducted of the top transit agencies in the nation, and results are examined through descriptive statistical analysis, correlation analysis and regression modeling. We found that while most agencies still lack clearly-defined goals and performance metrics to guide their social media development, many are increasing …


Integrating High-Resolution Datasets To Target Mitigation Efforts For Improving Air Quality And Public Health In Urban Neighborhoods, Vivek Shandas, Jackson Voelkel, Meenakshi Rao, Linda A. George Aug 2016

Integrating High-Resolution Datasets To Target Mitigation Efforts For Improving Air Quality And Public Health In Urban Neighborhoods, Vivek Shandas, Jackson Voelkel, Meenakshi Rao, Linda A. George

Urban Studies and Planning Faculty Publications and Presentations

Reducing exposure to degraded air quality is essential for building healthy cities. Although air quality and population vary at fine spatial scales, current regulatory and public health frameworks assess human exposures using county- or city-scales. We build on a spatial analysis technique, dasymetric mapping, for allocating urban populations that, together with emerging fine-scale measurements of air pollution, addresses three objectives: (1) evaluate the role of spatial scale in estimating exposure; (2) identify urban communities that are disproportionately burdened by poor air quality; and (3) estimate reduction in mobile sources of pollutants due to local tree-planting efforts using nitrogen dioxide. Our …


Daytime Variation Of Urban Heat Islands: The Case Study Of Doha, Qatar, Yasuyo Makido, Vivek Shandas, Salim Ferwati, David J. Sailor Jun 2016

Daytime Variation Of Urban Heat Islands: The Case Study Of Doha, Qatar, Yasuyo Makido, Vivek Shandas, Salim Ferwati, David J. Sailor

Urban Studies and Planning Faculty Publications and Presentations

Recent evidence suggests that urban forms and materials can help to mediate temporal variation of microclimates and that landscape modifications can potentially reduce temperatures and increase accessibility to outdoor environments. To understand the relationship between urban form and temperature moderation, we examined the spatial and temporal variation of air temperature throughout one desert city—Doha, Qatar—by conducting vehicle traverses using highly resolved temperature and GPS data logs to determine spatial differences in summertime air temperatures. To help explain near-surface air temperatures using land cover variables, we employed three statistical approaches: Ordinary Least Squares (OLS), Regression Tree Analysis (RTA), and Random Forest …