https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/220 2026-04-04T09:55:47Z 2026-04-04T09:55:47Z Kim, Hyebin Kim, Minkyu Lee, Sugie https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/211009 2026-03-03T05:00:48Z 2026-05-01T00:00:00Z

Title: A novel approach to commercial district life-cycle analysis using web crawling: An application of chasm theory Authors: Kim, Hyebin; Kim, Minkyu; Lee, Sugie Abstract: Commercial districts exhibit a cyclical pattern of growth and decline, with key changes in commercial districts based on consumer attraction. The growth of a commercial district is achieved when consumers' and suppliers' mutual demand and supply align. However, previous studies had a limitation of incorporating the demand perspective. Therefore, this study focuses on the typology of the temporal curves of supply and demand and ‘Chasm’ between supply and demand, which can limit growth of a commercial district. This study aims to define the life-cycle of commercial districts in Seoul by adopting a novel data-driven quantitative framework. This study utilized business count data and major web services' search traffic data by web crawling techniques from 2006 to 2022. Our findings revealed a persistent mismatch between supply and demand across districts, underscoring the structural asymmetries between physical commercial infrastructure and transient consumer behavior. Also, we empirically identified four distinct clusters of commercial districts which captured the presence of Chasm. Notably, this study introduces a generalizable methodology using open-source tools and universally accessible data for diagnosing commercial district transformations. The results of this study indicate that both supply and demand must be considered for selecting commercial district locations and understanding their life-cycles. Furthermore, the study offers a structured approach to analyzing urban commercial change that is both quantitative and replicable.

2026-05-01T00:00:00Z Hwang, Gyuna Park, Jina https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/211428 2026-03-23T02:00:22Z 2026-04-01T00:00:00Z

Title: The role of streetscapes quality in coffee shop location shifts: A case study of the Hongdae retail district in Seoul Authors: Hwang, Gyuna; Park, Jina Abstract: As the experience economy and omnichannel retail expand, retailers increasingly prioritize residential-adjacent streets beyond traditional centers. Specifically, coffee shops—low-barrier, pedestrian-oriented third places—are spreading along alleyways and mixed residential streets. This study examined how visual (e.g., enclosure and openness) and perceptual (e.g., liveliness and beauty) streetscape qualities are associated with coffee shop location patterns. Using deep learning and semantic segmentation on street view images in the Hongdae retail district in Seoul, we quantified physical and perceived streetscape characteristics. The results reveal phase-dependent locational shifts. In the establishment phase, new coffee shops were concentrated along boulevards with vehicular exposure. In the growth phase, new openings were associated with higher subway accessibility and aesthetic quality. In the spillover phase, openings were increasingly observed in visually vibrant alleyways—characterized by higher enclosure, openness, and perceived liveliness—despite limited transit access. These findings suggest that coffee shop locations become progressively aligned with street-level experiential qualities, which can be interpreted as an outdoor servicescape operating alongside traditional location mechanisms. By extending servicescape from store interiors to surrounding streetscapes, this study highlights offers an exploratory framework for linking the spatial configuration of retail environments with customers’ experiences of everyday consumption spaces.

2026-04-01T00:00:00Z Kim, Hyebin Kweon, Junhyeon Kim, Jae Hong Hipp, John R. Lee, Sugie https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/210821 2026-02-12T05:30:30Z 2026-03-01T00:00:00Z

Title: Who gets quality urban parks? A socioeconomic disparity analysis using user reviews and the opportunity algorithm in Los Angeles Authors: Kim, Hyebin; Kweon, Junhyeon; Kim, Jae Hong; Hipp, John R.; Lee, Sugie Abstract: This study explores urban park equity by leveraging user-generated content from Google Maps and applying the opportunity algorithm to assess disparities in park quality. We investigated whether perceived needs and satisfaction levels related to park features vary by neighborhood income level, racial composition, and park size. The opportunity algorithm identifies underserved and overserved features by comparing the relative importance and satisfaction scores. The results revealed that different park groups exhibited distinct underserved and overserved features. Safety concerns are underserved in low-income and minority neighborhoods. Conversely, amenities such as hiking and biking or natural features are often overserved in high-income or high-white areas. Furthermore, dog parks were viewed as overserved in low-white areas but underserved in high-white areas, reflecting a reversed pattern. These findings demonstrate the effectiveness of the opportunity algorithm approach in detecting user perceptions of park quality by identifying mismatches between importance and satisfaction, offering a scalable, data-driven alternative to traditional audits. Based on these insights, we propose policy recommendations to support more inclusive and responsive urban park planning.

2026-03-01T00:00:00Z Lee, Sangwan Yoo, Chisun Lee, Sugie https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/210952 2026-02-25T08:00:14Z 2026-03-01T00:00:00Z

Title: Emerging megaregions and intensifying spatial polarization in South Korea: Evidence from nighttime light data (1992–2020) Authors: Lee, Sangwan; Yoo, Chisun; Lee, Sugie Abstract: This study investigates the spatio-temporal evolution of spatial structure in South Korea, with the aim of understanding how spatial polarization and regional restructuring have unfolded over the past three decades. To achieve this, we apply Contour Tree Mapping and Emerging Hot Spot Analysis to Nighttime Light data. This study reveals three major findings. First, metropolitan areas such as Seoul and Busan continue to dominate the national urban hierarchy, demonstrating strong path-dependent development. Second, the expansion of cold-spot clusters in provinces including Gangwon-do and Jeollabuk-do highlights the growing marginalization of peripheral regions, signaling intensified spatial polarization. Third, a structural shift is underway as metropolitan areas increasingly conurbate, with corridors such as Seoul–Daejeon and Daegu–Busan forming megaregional configurations. This study contributes to offering empirical evidence of ongoing spatial transformation in South Korea and expands the theoretical discussion on spatial restructuring and regional development.

2026-03-01T00:00:00Z