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Accessibility for persons with mobility impairments in Sabino Canyon Recreation Area's Upper CanyonHavens, William H.; Steward, Shirley Kathleen, 1949- (The University of Arizona., 1992)This thesis discusses accessibility issues for persons with mobility restrictions visiting Sabino Canyon Recreation Area's Upper Canyon near Tucson, Arizona. A shuttle bus from the Visitor Center area provides the only motorized access into the Canyon interior. Designated shuttle stop areas are inaccessible, preventing some individuals with mobility problems from extending their time in the natural setting. The purpose of this study was to investigate physical inaccessibility at the shuttle stops and provide design recommendations to improve access appropriate to the natural setting, using proposed guidelines which are being considered by the USDA Forest Service, Sabino's managing agency, for its outdoor recreation areas. The methods used were an evaluation of each shuttle stop area and application of the proposed guidelines to assign accessibility accommodation levels to each shuttle stop. Recommended modifications within each level are given. Conceptual plans for two shuttle stop areas and detailed drawings for facility accessibility are provided. A review of literature on human preferences and psychological benefits associated with natural environments, the impacts of physical disabilities, and accessibility legislation and standards is included.