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- All Subjects: Sustainability
- Creators: Arizona State University
Description
This dissertation advances the capability of water infrastructure utilities to anticipate and adapt to vulnerabilities in their systems from temperature increase and interdependencies with other infrastructure systems. Impact assessment models of increased heat and interdependencies were developed which incorporate probability, spatial, temporal, and operational information. Key findings from the models are that with increased heat the increased likelihood of water quality non-compliances is particularly concerning, the anticipated increases in different hardware components generate different levels of concern starting with iron pipes, then pumps, and then PVC pipes, the effects of temperature increase on hardware components and on service losses are non-linear due to spatial criticality of components, and that modeling spatial and operational complexity helps to identify potential pathways of failure propagation between infrastructure systems. Exploring different parameters of the models allowed for comparison of institutional strategies. Key findings are that either preventative maintenance or repair strategies can completely offset additional outages from increased temperatures though-- improved repair times reduce overall duration of outages more than preventative maintenance, and that coordinated strategies across utilities could be effective for mitigating vulnerability.
ContributorsBondank, Emily (Author) / Chester, Mikhail V (Thesis advisor) / Ruddell, Benjamin L (Committee member) / Johnson, Nathan G (Committee member) / Seager, Thomas P (Committee member) / Arizona State University (Publisher)
Created2019
Description
In many social-ecological systems, shared resources play a critical role in supporting the livelihoods of rural populations. Physical infrastructure enables resource access and reduces the variability of resource supply. In order for the infrastructure to remain functional, institutions must incentivize individuals to engage in provision and maintenance. The objective of my dissertation is to understand key formal and informal institutions that affect provision of shared infrastructure and the policy tools that may improve infrastructure provision. I examine these questions in the context of irrigation systems in India because infrastructure maintenance is a persistent challenge and system function is critical for global food production.
My first study investigates how the presence of private infrastructure, such as groundwater pumps, affects the provision of shared infrastructure, such as shared tanks or surface reservoirs. I examine whether formal institutions, such as water pricing instruments, may prevent under-provision of the shared tanks. My findings suggest that in the absence of rules that coordinate tank maintenance, the presence of private pumps will have a detrimental effect on system productivity and equality. On the other hand, the combination of a fixed groundwater fee and a location-based maintenance fee for tank users can improve system productivity and equality.
The second study examines the effect of power asymmetries between farmers, caused by informal institutions such as caste, on the persistence of political institutions that govern infrastructure provision. I examined the effect of policy tools, such as non-farm wage employment and informational interventions, on the persistence of two types of political institutions: self-governed and nested. Results suggest that critical regime shifts in political institutions can be generated by either intervening in formal institutions, such as non-farm wage employment, or informal institutions, such as knowledge transmission or learning mechanisms.
The third study investigates how bureaucratic and political corruption affect public good provision. I examine how institutional and environmental factors affect the likelihood of corruption and infrastructure provision. I demonstrate that cracking down on corruption is only beneficial when infrastructure provision is poor. I also show that bureaucratic wages play an important role in curbing extralegal transactions and improving infrastructure provision.
My first study investigates how the presence of private infrastructure, such as groundwater pumps, affects the provision of shared infrastructure, such as shared tanks or surface reservoirs. I examine whether formal institutions, such as water pricing instruments, may prevent under-provision of the shared tanks. My findings suggest that in the absence of rules that coordinate tank maintenance, the presence of private pumps will have a detrimental effect on system productivity and equality. On the other hand, the combination of a fixed groundwater fee and a location-based maintenance fee for tank users can improve system productivity and equality.
The second study examines the effect of power asymmetries between farmers, caused by informal institutions such as caste, on the persistence of political institutions that govern infrastructure provision. I examined the effect of policy tools, such as non-farm wage employment and informational interventions, on the persistence of two types of political institutions: self-governed and nested. Results suggest that critical regime shifts in political institutions can be generated by either intervening in formal institutions, such as non-farm wage employment, or informal institutions, such as knowledge transmission or learning mechanisms.
The third study investigates how bureaucratic and political corruption affect public good provision. I examine how institutional and environmental factors affect the likelihood of corruption and infrastructure provision. I demonstrate that cracking down on corruption is only beneficial when infrastructure provision is poor. I also show that bureaucratic wages play an important role in curbing extralegal transactions and improving infrastructure provision.
ContributorsVallury, Sechindra (Author) / Abbott, Joshua K (Thesis advisor) / Anderies, John M (Thesis advisor) / Leonard, Bryan (Committee member) / Arizona State University (Publisher)
Created2019
Description
This dissertation seeks to understand and study the process of attention harvesting and knowledge production on typical online Q&A communities. Goals of this study include quantifying the attention harvesting and online knowledge, damping the effect of competition for attention on knowledge production, and examining the diversity of user behaviors on question answering. Project 1 starts with a simplistic discrete time model on a scale-free network and provides the method to measure the attention harvested. Further, project 1 highlights the effect of distractions on harvesting productive attention and in the end concludes which factors are influential and sensitive to the attention harvesting. The main finding is the critical condition to optimize the attention harvesting on the network by reducing network connection. Project 2 extends the scope of the study to quantify the value and quality of knowledge, focusing on the question answering dynamics. This part of research models how attention was distributed under typical answering strategies on a virtual online Q&A community. The final result provides an approach to measure the efficiency of attention transferred into value production and observes the contribution of different scenarios under various computed metrics. Project 3 is an advanced study on the foundation of the virtual question answering community from project 2. With highlights of different user behavioral preferences, algorithm stochastically simulates individual decisions and behavior. Results from sensitivity analysis on different mixtures of user groups gives insight of nonlinear dynamics for the objectives of success. Simulation finding shows reputation rewarding mechanism on Stack Overflow shapes the crowd mixture of behavior to be successful. In addition, project proposed an attention allocation scenario of question answering to improve the success metrics when coupling with a particular selection strategy.
ContributorsYu, Fan, Ph.D (Author) / Janssen, Marcus A (Thesis advisor) / Kang, Yun (Committee member) / Castillo-Chavez, Carlos (Committee member) / Arizona State University (Publisher)
Created2019
Description
Moderate physical activity, such as walking and biking, positively affects physical and mental health. Outdoor thermal comfort is an important prerequisite for incentivizing an active lifestyle. Thus, extreme heat poses significant challenges for people who are outdoors by choice or necessity. The type and qualities of built infrastructure determine the intensity and duration of individual exposure to heat. As cities globally are shifting priorities towards non-motorized and public transit travel, more residents are expected to experience the city on their feet. Thus, physical conditions as well as psychological perception of the environment that affect thermal comfort will become paramount. Phoenix, Arizona, is used as a case study to examine the effectiveness of current public transit and street infrastructure to reduce heat exposure and affect the thermal comfort of walkers and public transit users.
The City of Phoenix has committed to public transit improvements in the Transportation 2050 plan and has recently adopted a Complete Streets Policy. Proposed changes include mobility improvements and creating a safe and comfortable environment for non-motorized road participants. To understand what kind of improvements would benefit thermal comfort the most, it is necessary to understand heat exposure at finer spatial scales, explore whether current bus shelter designs are adequate in mitigating heat-health effects, and comprehensively assess the impact of design on physical, psychological and behavioral aspects of thermal comfort. A study conducted at bus stops in one Phoenix neighborhood examined grey and green infrastructure types preferred for cooling and found relationships between perception of pleasantness and thermal sensation votes. Walking interviews conducted in another neighborhood event examined the applicability of a framework for walking behavior under the stress of heat, and how differences between the streets affected perceptions of the walkers. The interviews revealed that many of the structural themes from the framework of walking behavior were applicable, however, participants assessed the majority of the elements in their walk from a heat mitigation perspective. Finally, guiding questions for walkability in hot and arid climates were developed based on the literature review and results from the empirical studies. This dissertation contributes to filling the gap between walkability and outdoor thermal comfort, and presents methodology and findings that can be useful to address walkability and outdoor thermal comfort in the world’s hot cities as well as those in temperate climates that may face similar climate challenges in the future as the planet warms.
The City of Phoenix has committed to public transit improvements in the Transportation 2050 plan and has recently adopted a Complete Streets Policy. Proposed changes include mobility improvements and creating a safe and comfortable environment for non-motorized road participants. To understand what kind of improvements would benefit thermal comfort the most, it is necessary to understand heat exposure at finer spatial scales, explore whether current bus shelter designs are adequate in mitigating heat-health effects, and comprehensively assess the impact of design on physical, psychological and behavioral aspects of thermal comfort. A study conducted at bus stops in one Phoenix neighborhood examined grey and green infrastructure types preferred for cooling and found relationships between perception of pleasantness and thermal sensation votes. Walking interviews conducted in another neighborhood event examined the applicability of a framework for walking behavior under the stress of heat, and how differences between the streets affected perceptions of the walkers. The interviews revealed that many of the structural themes from the framework of walking behavior were applicable, however, participants assessed the majority of the elements in their walk from a heat mitigation perspective. Finally, guiding questions for walkability in hot and arid climates were developed based on the literature review and results from the empirical studies. This dissertation contributes to filling the gap between walkability and outdoor thermal comfort, and presents methodology and findings that can be useful to address walkability and outdoor thermal comfort in the world’s hot cities as well as those in temperate climates that may face similar climate challenges in the future as the planet warms.
ContributorsDzyuban, Yuliya (Author) / Redman, Charles L. (Thesis advisor) / Coseo, Paul J. (Committee member) / Hondula, David M. (Committee member) / Arizona State University (Publisher)
Created2019
Description
Urban heat is a growing problem that impacts public health, water and energy use, and the economy and affects population subgroups differently. Exposure and sensitivity, two key factors in determining vulnerability, have been widely researched. This dissertation focuses on the adaptive capacity component of heat vulnerability at the individual, household, and community scale. Using a mixed methods approach and metropolitan Phoenix as a test site, I explored how vulnerable communities understand and adapt to increasing extreme urban heat to uncover adaptive capacity that is not being operationalized well through current heat vulnerability frameworks. Twenty-three open-ended interviews were conducted where residents were encouraged to tell their stories about past and present extreme heat adaptive capacity behaviors. A community-based participatory research project consisting of three workshops and demonstration projects was piloted in three underserved neighborhoods to address urban heat on a local scale and collaboratively create community heat action plans. Last, a practitioner stakeholder meeting was held to discuss how the heat action plans will be integrated into other community efforts. Using data from the interviews, workshops, and stakeholder meeting, social capital was examined in the context of urban heat. Although social capital has been measured in a multitude of ways to gauge social relationships, trust, and reciprocity within a community, it is situational and reflects a position within the formal and informal aspects of any issue. Three narratives emerged from the interviews illuminating differentiated capacities to cope with urban heat: heat is an inconvenience, heat is a manageable problem, and heat is a catastrophe. For each of these narratives, generic adaptive capacity is impacted differently by specific heat adaptive capacity. The heat action plan workshops generated hyper-local heat solutions that reflected the neighborhoods’ different identities. Community-based organizations were instrumental in the success of this program. Social capital indicators were developed specific to urban heat that rely on heavily on family and personal relationships, attitudes and beliefs, perceived support, network size and community engagement. This research highlights how extreme heat vulnerability may need to be rethought to capture adaptive capacity nuances and the dynamic structure of who is vulnerable under what circumstances.
ContributorsGuardaro, Melissa (Author) / Redman, Charles L. (Thesis advisor) / Hondula, David M. (Committee member) / Johnston, Erik W., 1977- (Committee member) / Arizona State University (Publisher)
Created2019
Description
Raising future generations is a culturally diverse, universally technological human project. This research brought the everyday work of raising children into the domain of sustainability scholarship, by first proposing a model of childrearing as a globally distributed socio-technical system, and then exploring the model with participants in two nodes – an elementary and middle school, and a children’s museum. In the process, the research objective shifted towards using methods that were less academic and more relevant to childrearing agents. The focus on participatory survey data was abandoned, in favor of autoethnographic documentation of a long-term engagement with a third node of the system, a child welfare setting. This approach yielded unexpected findings that fit the proposed model, identified characteristics of a Zone of Mutual Oblivion (ZMO) that exists between childrearing and sustainability, and clarified ways in which people prioritize their own needs and responsibilities, the developmental needs of children, the potential needs and capacities of future generations, and the functional integrity of ecological systems.
ContributorsCazel-Jahn, Angela (Author) / Blue Swadener, Elizabeth (Thesis advisor) / Allenby, Braden (Committee member) / Lobo, Jose (Committee member) / Arizona State University (Publisher)
Created2019
Description
Human connection is fundamental for a shift toward sustainable societies. Small groups of people working in response to their unique conditions and environment can find joy in the co-creation of a shared existence. A collaborative network of related efforts can contribute to a broader understanding of resilience and adaptation, aiming toward a regenerative relationship with the Earth and all species. Such an approach ameliorates both pervasive loneliness and extreme inequity that have grown from modern consumerist individualism, through a strong focus on trust, respect and authenticity. I have created a structure to pursue these goals as an applied Sustainability researcher and artist. First, I present a tool that measures and guides community-based work to support the values of equity, justice, transformation and connection. I follow this with an in-depth process of qualitative inquiry grounded in an applied participatory design project to gain insight on the act of building connection across perceived divides. Finally, I share “The Building Community:” the group and process I formed with formerly homeless individuals who are co-designing a tiny home ecovillage of transitional supportive housing for homeless human beings in the Skid Row neighborhood of downtown Los Angeles. The Building Community method combines Council-style talking circles with elements of Action and Design research in which equal co-learners embark on a fun and challenging journey to nurture housing security, interconnectedness, and sustainability. The results of this research indicate an opportunity for community-based researchers to further incorporate support for the rights of nature, decolonization efforts and preservation of the commons into their projects. Flexible structure, consistency, balanced effort and shared decision making proved to build a strong foundation for group processes centered on trust. Finally, The Building Community showed that intimate local groups can produce abundant and creative sustainability solutions when partnered with academic guidance and resources. Sustainability scholars have the chance to balance power, amplify voices and make collective visions manifest if they immerse themselves in efforts on the ground.
ContributorsFalstad, Beth Ann Grace (Author) / Cloutier, Scott (Thesis advisor) / Gee, James (Committee member) / Sale, Gregory (Committee member) / Arizona State University (Publisher)
Created2019
Description
Tucked peacefully into mountains just north of the City of São Paulo, the largest metropolitan area in South America, sits the Cantareira Reservoir System. This massive water catchment network received worldwide coverage in 2014 and 2015 as one of the worst droughts in a century hit the region, threatening to collapse the system. In the years since the peak of the drought, the media has changed its focus, the reservoirs have begun a slow recovery, but the people of the region have had to live with the consequences of this difficult period. Faced with an uncertain future, the people continue to grapple with the historic struggles of rural life, while being faced by new threats to the social, environmental, and technological order that has for a long time stabilized the region. My thesis explores the narrative imaginaries that individuals have pertaining to their personal future and that of the region. It delves into the identity of the Rural Producer, the battle to conserve and preserve native forest, issues surrounding the governance of common resources, and what actors perceive to be the biggest advantages and threats to the sustainable future of the region. Utilizing a set of twenty expert elicitation interviews, data was collected from a variety of actors representing a number of roles and positions within the system. My analysis connects disparate individual narratives, illuminating how they connect together with the narratives of other respondents, creating a regional narrative that illustrates a set of desired outcomes for the region. This paper does not attempt to operationalize solutions for the issues that face the region, it does however serve to provide a context for the historical and contemporary issues that exist, a means by which to consider how they may be approached, and ultimately as a tool for policy makers to make more informed decisions going forward.
ContributorsStaats, Cody B. (Author) / Parmentier, Mary Jane C. (Thesis advisor) / Haglund, LaDawn (Committee member) / Bennett, Michael G. (Committee member) / Arizona State University (Publisher)
Created2019
Description
This dissertation combines three research projects to examine the people affecting and affected by urban environmental change across multiple scales of decision making. In the Phoenix Metropolitan area and the Colorado River Basin, I study the social influence around the implementation of water use innovations among city-level stakeholders (Chapter 2) and I emphasize that water insecurity still exists in wealthy cities (Chapter 3). In Chapter 4, I ultimately consider grassroots solutions for achieving resource security alongside positive social change in a historically underserved community. In this dissertation, I have conceptualized my research questions by envisioning urban change as an opportunity for actors, at multiple scales, to simultaneously reduce resource waste and promote positive social change.
ContributorsDeMyers, Christine (Author) / Wutich, Amber (Thesis advisor) / White, Dave (Committee member) / BurnSilver, Shauna (Committee member) / Glegziabher, Meskerem (Committee member) / Arizona State University (Publisher)
Created2019
Description
In this multi-media dissertation, water is used metaphorically to equate the process of learning with embracing change. Paradigm shifts needed for sustainability require transformative learning where one is open to being shaped by new knowledge and experience. Properties of water – such as molecular bonding and phase changes – uncover lessons for humans’ adaptability. Given that human bodies are comprised mostly of water – what implications exist for human capacity to similarly undergo continuous change? An arts- based research methodology is practiced to produce a four-chapter project. Artistic methods of data collection and communication retain subjective complexity of lived experiences central to learning processes. Each chapter is prepared for a target audience and addresses widening scales of creative learning for sustainability.
Chapter one is a narrative ethnography that focuses on a personal creative process for sustainability learning. Chapter two is a co- authored journal that covers creative learning tools and design principles for sustainable classrooms. Chapter three is an open-access and adaptive, online toolkit that shares creative methods to cultivate curiosity and critical contemplation. Chapter four is an interactive showcase event that explores how water can inform and inspire individual and collective learning for sustainability.
This four-chapter project addresses the power of creative learning for sustainability at the personal, familial, formal classroom, informal online learning community, and public scales. Arts-based methods harness aesthetic power, welcome subjective complexity, and allow multiple meanings to be interpreted from research results. This multi- media project stretches the conventional structure of sustainability dissertations. The bridge between the arts and sciences is strengthened as this project shows synergies between these two ways of knowing. This research invites what can be learned from the wisdom of water – to both change and be changed by circumstances.
Chapter one is a narrative ethnography that focuses on a personal creative process for sustainability learning. Chapter two is a co- authored journal that covers creative learning tools and design principles for sustainable classrooms. Chapter three is an open-access and adaptive, online toolkit that shares creative methods to cultivate curiosity and critical contemplation. Chapter four is an interactive showcase event that explores how water can inform and inspire individual and collective learning for sustainability.
This four-chapter project addresses the power of creative learning for sustainability at the personal, familial, formal classroom, informal online learning community, and public scales. Arts-based methods harness aesthetic power, welcome subjective complexity, and allow multiple meanings to be interpreted from research results. This multi- media project stretches the conventional structure of sustainability dissertations. The bridge between the arts and sciences is strengthened as this project shows synergies between these two ways of knowing. This research invites what can be learned from the wisdom of water – to both change and be changed by circumstances.
ContributorsMovahed, Neda Y (Author) / Manuel-Navarrete, David (Thesis advisor) / Lerman, Liz (Thesis advisor) / Fonow, Mary Margaret (Committee member) / Arizona State University (Publisher)
Created2020