sustainability Article What Park Visitors Survey Tells Us: Comparing Three Elevated Parks—The High Line, 606, and High Bridge Jisoo Sim 1,* , Cermetrius Lynell Bohannon 1 and Patrick Miller 1 Department of Landscape Architecture, College of Architecture and Urban Studies, Virginia Tech., Blacksburg, VA 24061, USA; [email protected] (C.L.B.); [email protected] (P.M.) * Correspondence: [email protected]; Tel.: +1-540-449-5143 Received: 3 November 2019; Accepted: 10 December 2019; Published: 22 December 2019 Abstract: Many cities have replaced abandoned transportation infrastructure with an elevated park to gain increased economic benefits by developing old fabric. By following this trend, most studies to this point have only focused on the economic rewards from the replacement rather than its uses in the real world. This study aims to understand how park visitors use elevated parks through a park visitors’ survey. The authors selected three representative elevated parks—the High Line in New York City, the 606 in Chicago, and the High Bridge in Farmville—for the study and asked visitors about their activities, perceived benefits, and satisfaction. Results indicate that the 606, a mixed-use elevated park, allows visitors to engage in high-intensity activity, the High Line as an elevated urban park provides visitors public arts and gardens, and the High Bridge as an elevated green park provided visitors with a connection to unique natural scenery. This study, as the first to compare three different elevated parks, contributes to an understanding of who uses elevated parks and how they use elevated parks. Keywords: elevated park; park visitor survey; High Line; 606; Bloomingdale Trail; High Bridge 1. Introduction Due to the changes in modes of transportation [1,2] and the phenomena of shrinking cities [3,4], transportation infrastructure in many places have become obsolete and are becoming brownfields [5]. Recently, several cities, such as New York City, Chicago, and Seoul, have replaced abandoned transportation infrastructure with a park to serve the recreation needs of the citizens. After the High Line, built on an abandoned railroad, was seen to have achieved significant economic returns [6–9], dozens of cities completed or proposed to replace abandoned transportation infrastructure with parks in the US [10] and around the globe. While replacing old infrastructure with a park has become a trend, there is still a need for research on how this should be done. Most studies about parks built over or on transportation infrastructure have only focused on the economic impacts to adjacent areas [11–15]. Cities use these conversions from transportation infrastructure to a park as a tool for urban regeneration. Studies on recent projects such as the Big-dig in Boston [16,17], the High Line in New York [7,18], and the Cheonggyecheon restoration project in Seoul, Korea [12,19], have attempted to determine the economic benefits of these new parks, mainly focused on tax revenues and property value. Based on these economic studies, many cities are now looking to develop elevated parks. However, these previous studies did not specify who visits elevated parks, how the parks are used, and user satisfaction with elevated parks. This study investigates three different elevated parks and compares visitor activities, perceived benefits, and perceived satisfaction. The objective of this study is to (1) identify elevated park visitor characteristics, (2) illustrate differences between three different types of elevated parks, and (3) provide design implications for future elevated parks. To answer these questions, the authors selected three Sustainability 2020, 12, 121; doi:10.3390/su12010121 www.mdpi.com/journal/sustainability Sustainability 2019, 11, x FOR PEER REVIEW 2 of 17 Sustainability 2020, 12, 121 2 of 16 design implications for future elevated parks. To answer these questions, the authors selected three elevatedelevated parks parks that that represented represented three three types types of of elevated elevated parks parks and and conduct conducteded an an on on-site-site survey survey to to determinedetermine who who are are park park visi visitorstors and their behavior. The The authors authors have have examine examinedd the the relationship relationship betweenbetween activities, activities, perceived perceived benefits, benefits, and perceived satisfaction. 2.2. Emerging Emerging an an Elevated Elevated Park Park 2.1.2.1. 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