The rapid rate of urbanization coupled with continued population growth and anthropogenic activities has resulted in a myriad of urban climate related impacts across different cities around the world. Hot-arid cities are more vulnerable to induced urban heat effects due to the intense solar radiation during most of the year, leading to increased ambient air temperature and outdoor/indoor discomfort in Phoenix, Arizona. With the fast growth of the capital city of Arizona, the automobile-dependent planning of the city contributed negatively to the outdoor thermal comfort and to the people's daily social lives. One of the biggest challenges for hot-arid cities is to mitigate against the induced urban heat increase and improve the outdoor thermal. The objective of this study is to propose a pragmatic and useful framework that would improve the outdoor thermal comfort, by being able to evaluate and select minimally invasive urban heat mitigation strategies that could be applied to the existing urban settings in the hot-arid area of Phoenix. The study started with an evaluation of existing microclimate conditions by means of multiple field observations cross a North-South oriented urban block of buildings within Arizona State University’s Downtown campus in Phoenix. The collected data was evaluated and analyzed for a better understanding of the different local climates within the study area, then used to evaluate and partially validate a computational fluid dynamics model, ENVI-Met. Furthermore, three mitigation strategies were analyzed to the Urban Canopy Layer (UCL) level, an increase in the fraction of permeable materials in the ground surface, adding different configurations of high/low Leaf Area Density (LAD) trees, and replacing the trees configurations with fabric shading. All the strategies were compared and analyzed to determine the most impactful and effective mitigation strategies. The evaluated strategies have shown a substantial cooling effect from the High LAD trees scenarios. Also, the fabric shading strategies have shown a higher cooling effect than the Low LAD trees. Integrating the trees scenarios with the fabric shading had close cooling effect results in the High LAD trees scenarios. Finally, how to integrate these successful strategies into practical situations was addressed.

The City of Phoenix has historically been developed in an unsustainable way based on the way that autocentric cities have come to mature. By learning from a few European cities, Phoenix can focus on improving in a few key areas that will make the valley more walkable, enjoyable, and beautiful. This process of learning from other European cities can help developers, designers, and others in the development community to improve all of the valley’s different communities with a consistent plan of increasing urban density and ending outward sprawl while redefining the connective tissue that makes up Phoenix. This paper is meant to provide a set of example cities in order to pull specific recommendations and create a system of guidelines for all autocentric cities.

This thesis will discuss how design strategies reduce the impact track venues
have on the environment and how to enhance the sense of place by investigating
ecoregional design for now and for the future. The specific site where examples of
sustainable design will be implemented is at the proposed new Arizona State University
Track and field that will be relocated as part of the Novus Innovation Corridor Athletic
Village. First, we will discuss the impact sports have on our health and culture and why
athletics matters to society. Understanding the history of track and field and the
evolution of track stadiums and looking at current designs of stadiums will provide
insight for future track designs. Next, we will look at some existing track stadiums
around the United States and how each design is adjusted to the climate and weather of
the region to help the stadium last longer and be more sustainable. After that, we will
look at what is working for the existing Sun Angel Stadium and what should be improved
and implemented in the new design. Lastly, we will explore a proposed design for the
new Sun Angel Track Stadium and how it will benefit the student athletes, spectators,
and the environment.

Following the prolific car-centric design of the twentieth century, many cities are grappling with increasing pedestrian deaths and greater vehicle congestion. To solve these problems, many of these cities are expressing a desire to create more effective and vibrant walkable places. Aside from safety, numerous benefits come from pedestrian friendly communities, including greater economic activity, better health, greater social capital, and less environmental impact. Although there are several tools already available, evaluating an area’s current walkability situation is still varied, and evaluating a pedestrian’s thoughts on safety and enjoyability is also difficult. The benefits of walkability and past and present tools are summarized in this paper. The goal of this paper was to create a walkability evaluation tool that included smaller, often overlooked aspects of the sidewalk and site design that contribute to a pedestrian’s experience and safety. The author developed a tool containing 40 different measures of the sidewalk concerning safety, connectivity, enjoyment, and accessibility, as well as created methods for visualizing the data. The tool was then utilized to gather data at six Phoenix-metro area intersections using a combination of on street data collection and GIS software and Google Street View. The paper also details suggestions on how to act upon the data and improve walkability in an area, including minor street alterations and larger policy shifts in zoning codes. Although in preliminary data collection the tool provides a good snapshot of the data, further development of the tool and assessment of its reliability are needed, as well as greater data collection to compare evaluated areas to a larger region.

Participatory approaches to policy-making and research are thought to “open up” technical decision-making to broader considerations, empower diverse public audiences, and inform policies that address pluralistic public goods. Many studies of participatory efforts focus on specific features or outcomes of those efforts, such as the format of a participatory event or the opinions of participants. While valuable, such research has not resolved conceptual problems and critiques of participatory efforts regarding, for example, their reinforcement of expert perspectives or their inability to impact policy- and decision-making. I studied two participatory efforts using survey data collected from participants, interviews with policy makers and experts associated with each project, and an analysis of project notes, meeting minutes, and my own personal reflections about each project. Both projects were based one type of participatory effort called Participatory Technology Assessment (pTA). I examined how project goals, materials, and the values, past experiences, and judgments of practitioners influenced decisions that shaped two participatory efforts to better understand how practitioners approached the challenges associated with participatory efforts.

I found four major themes that influenced decisions about these projects: Promoting learning; building capacity to host pTA events; fostering good deliberation; and policy relevance. Project organizers engaged in iterative discussions to negotiate how learning goals related to dominant ideas from policy and expert communities and frequently reflected on the impact of participatory efforts on participants and on broader socio-political systems. Practitioners chose to emphasize criteria for deliberation that were flexible and encompassing. They relied heavily on internal discussions about materials and format, and on feedback collected from participants, policy makers, and other stakeholders, to shape both projects, though some decisions resulted in unexpected and undesirable outcomes for participant discussions and policy relevance. Past experience played a heavy role in many decisions about participatory format and concerns about deliberative or participatory theory were only nominally present. My emphasis on understanding the practice of participatory efforts offers a way to reframe research on participatory efforts away from studying ‘moments’ of participation to studying the larger role participatory efforts play in socio-political systems.

Urban-induced heating is a challenge to the livability and health of city dwellers. It is a complex issue that many cities are facing, and a more urgent hazard in hot urban deserts (HUDs) than elsewhere due to already high temperatures and aridity. The challenge compounds in the absence of more localized heat mitigation understanding. In addition, over-reliance on evidence from temperate regions is disconnected from the actualities of extreme bioclimatic dynamics found in HUDs. This dissertation is an integration of a series of studies that inform urban climate relationships specific to HUDs. This three-paper dissertation demonstrates heat mitigation aspirational goals from actualities, depicts local urban thermal drivers in Kuwait, and then tests morphological sensitivity of selected thermal modulation strategies in one neighborhood in Kuwait City.

The first paper is based on a systematic literature review where evidence from morphological mitigation strategies in HUDs were critically reviewed, synthesized and integrated. Metrics, measurements, and methods were extracted to examine the applicability of the different strategies, and a content synthesis identified the levels of strategy success. Collective challenges and uncertainties were interpreted to compare aspirational goals from actualities of morphological mitigation strategies.

The second paper unpacks the relationship of urban morphological attributes in influencing thermal conditions to assess latent magnitudes of heat amelioration strategies. Mindful of the challenges presented in the first study, a 92-day summer field-measurement campaign captured system dynamics of urban thermal stimuli within sub-diurnal phenomena. A composite data set of sub-hourly air temperature measurements with sub-meter morphological attributes was built, statistically analyzed, and modeled. Morphological mediation effects were found to vary hourly with different patterns under varying weather conditions in non-linear associations. Results suggest mitigation interventions be investigated and later tested on a site- use and time-use basis.

The third paper concludes with a simulation-based study to conform on the collective findings of the earlier studies. The microclimate model ENVI-met 4.4, combined with field measurements, was used to simulate the effect of rooftop shade-sails in cooling the near ground thermal environment. Results showed significant cooling effects and thus presented a novel shading approach that challenges orthodox mitigation strategies in HUDs.

This project focuses on providing a series of Sensory Design Guidelines (SDG) for the creation of restorative environments for people and nature promoting cognitive health, motor skill development, and outdoor therapy for urban society’s most vulnerable. Although the project framework is structured around guidelines for the creation of spaces specifically designed for children with Sensory Processing Disorder, it is not restricted to that specific application. Guidelines are further developed structured around inclusive and universal design approaches.

The project is divided into four sections. The first section explores what Sensory Processing Disorder is, how Occupational Therapy with Sensory Integration positively impacts healing processes, and how designers can expand this processing into the natural healing environment of the great outdoors in a toxic and urbanized world. The second section discusses the vision, goals and objectives for implementation of Sensory Design Guidelines as discussed in the third section. And finally, the fourth section provides a conceptual example of what SDG would look like when applied to a physical site along a natural corridor in a densely urbanized landscape.

The final example of SDG implementation is applied to a site along the Salt River (Rio Salado) Corridor in Phoenix, Arizona. The Corridor is the subject of a coordinated inter-agency public/private restoration initiative spanning more than fifty-five miles along the Salt River that has been strongly supported by former U.S. Senator John McCain and greatly influenced by active involvement from Arizona State University students. The designated example site is designed as one site to be utilized in a larger network of easily accessible Sensory sites, each to be designed with a different approach to sensory development, as well as variation in challenges based on age and sensory abilities. Guidelines are intended to work in conjunction with future local projects promoting social and ecological growth and wellbeing, such as the Phoenix site is intended to work in conjunction with future Rio Re-imagined projects.

The findings, guidelines, and examples provided throughout the paper are focused on re-inventing the relationship between the built and natural environments in the urbanized landscape into one of daily nature-engagement and can be applied to any group living within an urban setting. By designing for society’s most vulnerable populations, design application benefits not only the individual, but creates a resilient, healthy environment for the entire urban population today, and for future generations.

The suburbs provoke a deeply polarized reaction, more so than most other components of the urban landscape. Those who live in the suburbs often love them for their quietude and their spaciousness, even while urban designers lament suburban sprawl. Regardless, suburbs are deeply entrenched in patterns of American urban land use, so an evolution to more sustainable land use will require incremental changes to suburban landscapes. The purpose of this project is twofold: one, to design a transition to a more sustainable landscape for an HOA in Gilbert, Arizona; and two, to abstract the process of designing this transition so that it can be applied on a larger scale.

As the move towards sustainable urbanism grows, understanding how the city has previously been envisioned and designed will be useful to moving forward. This work examines the legacy of urban design theories, what these theories have implied about what the city should be, and their sustainability consequences. Noticing three prominent urban design visions of the city, the technological city (as proposed in 1922 by Le Corbusier's Ville contemporaine and later in 1933 by his Ville Radieuse (The Radiant City), and in 1935 by Frank Lloyd Wright's' Broadacre City), the social city (as explored in 1961 by Jane Jacobs and in 1976 by Edward Relph of the University of Chicago), and the ecological city (as expounded upon in 1924 by both Lewis Mumford and in 1969 by Ian McHarg), I have newly applied the social-ecological-technical systems framework (SETS) to help classify and analyze these urban design theories and how they have mixed to create hybrid perspectives in more recent urban design theory. Lastly, I have proposed an urban design theory that envisions the sustainable city as an ongoing process. Hopefully, this vision that will hopefully be useful to the future of sustainable development in cities, as will a more organized understanding of urban design theories and their sustainability outcomes.