Theses and Dissertations from UMD
Permanent URI for this communityhttp://hdl.handle.net/1903/2
New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a give thesis/dissertation in DRUM
More information is available at Theses and Dissertations at University of Maryland Libraries.
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Item EQUITY ISSUES IN ELECTRIC VEHICLE ADOPTION AND PLANNING FOR CHARGING INFRASTRUCTURE(2024) Ugwu, Nneoma; Niemeier, Deb; Civil Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Electric Vehicles (EVs) offer a sustainable solution to fossil fuel dependency and environmentalpollution from conventional vehicles, crucial for mitigating climate change. However, low market penetration among minority and low-income communities raises equity and environmental justice concerns. This dissertation examines EV adoption and charging station access disparities in Maryland, focusing on sociodemographic factors such as race and income. To address the lack of minority representation in existing EV research surveys, we conducted anonline survey targeting people of color (POC) and low-to-moderate-income households. We received 542 complete responses. Ordinal regression models were used to analyze factors influencing EV interest. We then performed a cumulative accessibility study of EV infrastructure in Maryland. Pearson correlation analysis was used to show the relationship between charging station accessibility and sociodemographics. Population density showed a strong positive correlation (0.87) with charging deployment. We found that Baltimore City, had the highest population density and the highest concentration of EV charging in Maryland. We conducted a case study of Baltimore City’s EV infrastructure investments and policy efforts. Charging stations were categorized based on speed, network, access, and facility type. Spatial analysis andZero-Inflated Poisson (ZIP) regression models at the block group level were employed to investigate the disparities in EV charging infrastructure distribution within the City across minority and non-minority communities. Our findings show substantial disparities in EV perceptions between POC and Whitecommunities. The survey revealed that POC were more than twice more likely than White respondents to indicate that the availability of charging stations affects their interest in EV adoption, while the case studies revealed that POC populations are less likely to have access to EV infrastructure, necessitating targeted investment in charging options and subsidies in these communities. Our study also found the need for policies fostering residential charging station deployment, particularly in minority communities. To ensure equitable EV adoption, strategic investments in economically disadvantaged and rural areas beyond centralized regions are vital. This study informs evidence-based policies prioritizing accessibility, equity, and inclusivity in promoting a cleaner and sustainable transportation landscape.Item DESIGNING FOR THE PEOPLE: A PARTICIPATORY DESIGN APPROACH FOR DUANE AVENUE PARK(2022) Stokes, Bridget Allison; Kweon, Byoung-Suk; Plant Science and Landscape Architecture (PSLA); Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Health disparities in physical, psychological, and social well-being are known to exist among underserved and marginalized populations, and although it is widely accepted that public parks and greenspaces can provide these physical, mental and social benefits, underserved and minority communities are more likely to have an unequitable distribution of quality parks. Quality and maintenance of parks are important because neglect of existing parks can cause parks to be dangerous and unwelcoming spaces that diminish the value and benefits that these greenspaces can provide for residents. Underserved communities cannot typically afford landscape architecture services and historically, residents of these communities have been left out of the decision-making process when funding for parks have been distributed. One way that these distributional and procedural environmental injustices can be solved is through the work of non-profit community development organizations that utilize community engagement tools. Using a participatory design approach, this thesis explores how to redesign Duane Avenue Park, a neglected park located in south Baltimore, Maryland. The park design will be used by a local non-profit, the Greater Baybrook Alliance, to write proposals for grant funding for the future implementation of the Park. By researching literature related to this topic, performing site inventory and analysis, and conducting thorough stakeholder and community engagement through surveys, in-person events, and one-on-one interactions, I created a proposed site plan that addressed the following design goals: Goal 1: Improve Perception of Safety & Discourage Negative Uses Goal 2: Design an Adventure Park that Encourages Play and Connections with Nature Goal 3: Create Spaces for Gathering and other Activity Generators Goal 4: Incorporate Public Art While this is not meant to provide evidence that one park can resolve all the issues a community faces, it can show that parks can be part of a larger community strategy that can help to address some issues such as health disparities, safety, and environmental justice.Item UNDERSTANDING MANAGED RETREAT THROUGH A MULTI-STAKEHOLDER LENS: A CASE STUDY ON THE LOWER EASTERN SHORE OF MARYLAND(2021) Miralles, Andrea Maria; Paolisso, Michael J.; Alcañiz, Isabella; Marine-Estuarine-Environmental Sciences; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Due to concerns about increasing sea levels and climate displacement, there has been a growing interest in the adaptation option of managed retreat. In managed retreat, shorelines move inland acting as a natural buffer to coastal climate impacts, while coastal communities move to higher ground through voluntary home buyouts. Managed retreat is also highly controversial, as it is poorly understood and presents significant challenges to equity. In order to address these issues, this thesis research provides a multi-stakeholder analysis on the Lower Eastern Shore of Maryland focused on understandings and trust in managed retreat processes. Key findings from this research are that communities, government and non-governmental organizations have different understandings of managed retreat, that retreat discussions need to occur at official levels now, that equity must be a central component of planning, that trust is necessary for successful retreat and that any future retreat must emphasize community agency and collaboration.Item Using the Index of Concentration at the Extremes to Examine the Impact of Air Pollution Exposure on Infant Mortality in the United States(2019) Ammons, Samantha; Nguyen, Quynh; Epidemiology and Biostatistics; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Background: The concentration of privilege in a geographic area can determine how vital resources are distributed among certain groups in that area, thus influencing a community’s health. High air pollutant exposure is often concentrated in deprived neighborhoods with lack of vital resources. Objective: Determine whether states with a high concentration of air pollution exposure have higher infant mortality rates (IMR) than states with lower concentrations of air pollution exposure. Methods: The Index of Concentration of the Extreme was utilized to measure the concentration of air pollution exposure for each state. Incidence Rate Ratios and 95% Confidence Intervals for state infant mortality rate were computed using Poisson regression in Statistical Analysis Software. Results: States with high concentrations of air pollution exposure had 19% lower IMR than states with low air pollution exposure (95%CI:0.70 – 0.94). Conclusions: These findings can enable researchers to conduct census-tract research on adverse health outcomes and societal distributions.Item HAVE THE LOCAL PEOPLE BECOME INVISIBLE? A CASE STUDY OF A MILITARY INSTALLATION ON JEJU ISLAND, SOUTH KOREA.(2018) Jo, Nayoung; Geores, Martha; Geography; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)This study examines the effects of the construction of a military base on local communities on Jeju Island, South Korea. The South Korean military's intent in building these facilities is to demonstrate military sovereignty to neighboring countries while also providing socio-economic benefits to the local population (Korean Navy, Ministry of National Defense of Korea). However, local communities and NGOs continue to resist contemporary military construction policies due to the ecological, social and economic impacts of this process, which are exacerbated by the government’s unilateral approach and its failure to implement a system where the surrounding localities can influence construction policies (Sze et al., 2009). While resistance to military facilities is widely documented, this research highlights the disconnect between the different political scales represented by the military and the local community, or those who are empowered and the average local citizen, whose voice has been marginalized. This study focuses on the local people’s experience through the theoretical frame of environmental justice, and the concepts of scale and political ecology while using phenomenology to analyze open-ended interview data. This research concluded that 1) the local people were made voiceless and invisible through marginalization by the government; 2) this case is an environmental injustice case by identifying how the current process marginalizes local communities and environmental impacts through the analytical frames of environmental justice and the concept of scale; and 3) the combination of environmental justice theory and the concept of scale from political ecology is a more effective application of this study and can contribute to future related studies.Item THE DEVELOPMENT OF A COMMUNITY INFORMED CUMULATIVE STRESSORS AND RESILIENCY INDEX (CSRI) TO EXAMINE ENVIRONMENTAL HEALTH DISPARITIES AND DISEASE RISK IN SOUTH CAROLINA(2017) Naney, Kristen Burwell; Wilson, Sacoby M; Maryland Institute for Applied Environmental Health; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Communities with environmental justice (EJ) issues usually have disparities in exposure to chemical and non-chemical stressors and health status compared to other communities without underlying EJ issues. Improving cumulative risk assessment (CRA) screening tools and models can provide the necessary information needed to reduce health disparities and create more resilient communities. To address these gaps in EJ science, this dissertation has three specific aims: 1) Identify perceptions of environmental and resilience factors that may influence health among African-Americans in North Charleston, South Carolina (SC) (Study 1), 2) Develop a Cumulative Stressors and Resiliency Index (CSRI) used to rank risk in SC (Study 2), and 3) Examine associations between CSRI scores and risk of asthma hospitalizations/emergency department (ED) visits in SC (Study 3). Community stakeholders (N=18) participated in key-informant interviews and completed a 26-item paper survey in study one. Interviews were transcribed and coded, while mode, frequencies, and percentages were calculated for each indicator based on its ability to influence health. Statistical tests performed in study two included a Principal Component Analysis (PCA), one-way analysis of variance (ANOVA), and linear regression performed in SAS Enterprise Guide 7.1. Choropleth maps were also developed in ArcMap 10.5. We concluded by calculating descriptive statistics by Environmental Affairs (EA) region, Spearman’s rank-order correlation, one-way ANOVA, and negative binomial regression analyses in study three. Many of the indicators (61%) were rated as extremely high priority items and included environmental hazards, sociodemographic attributes, and factors that may influence resiliency. CSRI scores ranged from 7.4 – 64.0 with a mean score of 29.1. Statistically significant differences in CSRI scores were evident by EA region (p <0.0001) and a one-unit increase in the percentage of non-white populations per census tract projected to increase CSRI scores by roughly 6.1%. The CSRI was not able to predict risk of asthma hospitalizations/ED visits as hypothesized. Overall, we demonstrated that identifying and addressing chemical and non-chemical stressors and resiliency gaps in areas impacted by environmental injustice may lead to overall improvements in community resilience. We anticipate this work will be used as a blueprint to build more resilient and equitable communities in SC.