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    DisciplineSustainable Built Environments (5)Authors
    College of Architecture, Planning and Landscape Architecture (5)
    Livingston, Margaret (5)
    Iuliano, Joey (3)Iuliano, Joseph (2)Abou-Zeid, Gabriella (1)Fitzpatrick, Quinton (1)Howell, Jacqueline Ariel (1)McGuire, Grace (1)Rouhani, Maryam (1)Typesposter (5)text (5)
    thesis (5)

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    ROUTE REPAIR: DESIGN CHANGES TO IMPROVE SAFETY AT MOUNTAIN AVENUE AND HELEN STREET

    Fitzpatrick, Quinton (The University of Arizona., 2018-12)
    The intersection of Mountain Avenue and Helen Street in the city of Tucson, Arizona, lies at the end of a high use pedestrian and cyclist corridor. The intersection is located near the University of Arizona and is vital in facilitating walking and cycling connections to the university as well as the greater surrounding areas, including downtown Tucson. The intersection is currently unsafe and inefficient as a result of both design and location. This Thesis attempts to analyze and provide recommendations for potential design changes that would increase both vehicle levels of service and safety for all road users. A case study of successful cities and nationally recommended best practice design strategies was conducted to determine what features and infrastructure could be implemented to improve the intersection. It was found that safety infrastructure at intersections and connectivity between safe intersections were among the best practices for improved bicyclist and pedestrian safety. An application of these designs to the study intersection was explored with several alternatives offered. The application of left turn and straight through restrictions for automobiles proved the most promising design change. A significant increase in the level of service of the intersection was observed along with a 66% decrease in the number of conflict points at the intersection, a proxy for intersection safety. In conclusion, it is recommended that turning restrictions be implemented at this intersection to improve walking and cycling safety and connectivity in the greater university region of the city of Tucson.
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    WALKABILITY IN TUCSON: AN OVERVIEW OF CURRENT TRENDS AND GROWTH POTENTIAL

    Abou-Zeid, Gabriella (The University of Arizona., 2019-05)
    In the United States, the transportation sector was responsible for 28% of 2016 GHG emissions—the largest contribution of any industry (U.S. EPA, 2018). To reduce dependence on fossil fuels and mitigate their effects, active modes of transportation, like walking, need be planned for. This study provides an overview of walking in Tucson, AZ and subsequent guidance for future development through a) an assessment of walk-mode splits, b) a survey on residential preferences for walking, and c) a built environment case study analysis. It found that walking constituted 11% of all trips, compared to motorized vehicles, which accounted for more than 80% of all trips. Percentage of respondent walk and car trips varied significantly by income and trip purpose. Both Tucson residents and existing literature identified destination proximity as the most important built environment factor considered in deciding to walk. A complete streets project that incorporated many built environment features found to improve walkability (e.g., street connectivity, accessibility, walking infrastructure) but failed to account for destination proximity had little impact of walking behavior. To better promote walkability in Tucson, emphasis on coordination between transportation and land use planning and connection of walkability to social and cultural values is necessary.
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    Green Infrastructure and ArcGIS on the University of Arizona Campus

    Rouhani, Maryam (The University of Arizona., 2018-12)
    Climate change has led to an increase of destructive weather events around the world. This is a trend that is expected to continue in the coming decades. Because of this, making our cities more resilient and sustainable should be a top priority. However, realistically there are limited funds available to spend on improving our urban centers. We must find ways to be increasingly efficient and effective with the way we use our resources. This paper explores one way Arc GIS could play a role in analyzing data in order to decide where to prioritize spending. Green infrastructure is a cost effective and sustainable way to handle storm events. It allows water to be retained on site, rather than funneled through gutters. For this study, Arc GIS to create a density map of where green infrastructure currently exists on the University of Arizona’s campus, and then combining that with an NDVI analysis that reveals what areas are furthest away from existing green space. The resulting map shows what areas of campus are furthest from existing green infrastructure and greenspace, and are therefore in most need of additional green infrastructure. The area identified by the final map as having the most need is the north-west part of campus, by Park and Speedway. This same process could be applied at the scale of a city in order for city planners to make informed decisions on how to allocate their funds.
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    Creating Sustainable Spaces: A School Garden Case Study

    Howell, Jacqueline Ariel (The University of Arizona., 2019-05)
    The purpose of this study was to identify elements of school gardens that promote well-being in students. Many schools are starting school garden programs around the country, and while it is common knowledge that gardens can promote well-being, the causal relationships are not well understood. To better understand what makes school gardens good for students, I spent 4 months working as a garden intern at Manzo Elementary where I observed students and interviewed teachers and other garden interns. This paper also contains a thorough review of available literature that connects human well-being and green spaces. This research found that students appear to be feel a strong connection to their school garden and a sense of ownership of it, and that kids are more excited to use these spaces than other spaces in their schools. These factors appear to promote well-being in Manzo Elementary students by increasing students’ enthusiasm for learning and teaching responsibility.
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    BLOOMING & DYING: AGAVE WITHIN TUCSON’S BUILT ENVIRONMENT

    McGuire, Grace (The University of Arizona., 2019-04)
    This study examines one plant species in order to reveal the historical, biological, and social attachments the plant brings to the public and private landscapes in the city of Tucson, Arizona. The life cycle history, cultural attachment, and biological characteristics of the Agave genus are evaluated in terms the relationship between a native, Sonoran Desert adapted species and its use within the urban matrix. The succulent, rosette form is a characteristic that makes the agave species distinct from all other desert plants. Six particular agave species are mentioned within this writing, and are connected to the Tucson area’s cultural history, and current application of agave as a landscaping material. Agaves symbolize a rich history of human utilization and reliance, especially in the cultures of central/northern Mexico. As the industry within the U.S. for mescal products grows, agave on the landscape become distinctly agriculture based. The practices of wild harvesting agave for distillation and not allowing cultivated agaves to bloom impacts the ecosystem functions of northern Sonora, Mexico, and the southwestern United States, and severely limits the populations of wild agaves. It is estimated that in the coming years it will be almost impossible to find certain populations of wild agaves.
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