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http://dx.doi.org/10.7848/ksgpc.2021.39.6.571

Analysis of Urban Decline Patterns Based on Spatial Hierarchy Considering Regional Characteristics - Focusing on Ulsan Metropolitan City  

Park, Sun Young (Dept. of Geoinformatics, University of Seoul)
Jeong, Jiyeon (Dept. of Geoinformatics, University of Seoul)
You, Hyun Woo (Dept. of Geoinformatics, University of Seoul)
Chung, Hyeon Woo (Dept. of Geoinformatics, University of Seoul)
Lee, Jiyeong (Dept. of Geoinformatics, University of Seoul)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.39, no.6, 2021 , pp. 571-585 More about this Journal
Abstract
Various studies have analyzed urban decline at a universal level using the general characteristics of declining cities. However, urban decline at the city level should be considered because this decay occurs based on the unique attributes of a particular city. In addition, since this phenomenon occurs and spreads in microspaces, studies should consider smaller spatial units continuously. This study aims to develop an urban decline measurement model that considers regional characteristics to analyze the urban decline of Ulsan Metropolitan City over time and space. The index value of Ulsan, compared to the national average, is calculated and reflected in the weight to reflect regional characteristics in the model. In addition, after analyzing urban decline by administrative dong units, we also performed analysis by counting district units using spatial hierarchical structure to demonstrate evaluation on smaller unit spaces. As a result of analyzing urban decline patterns by associating the index calculated using the model with the social phenomenon of Ulsan Metropolitan City, urban decline formed clusters and spread to adjacent regions over time. In addition, results confirmed that external factors such as new towns and urban regeneration projects affect urban decline. By illustrating the degree of urban decline proposed measurement model used in this study, it is possible to present the priority of areas required for urban regeneration projects. Results are also helpful to test the effectiveness of completed or presently-implemented urban regeneration projects.
Keywords
Urban Decline; Spatial Hierarchical Structure; Pattern Analysis; Urban Regeneration;
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