[논문]SNA를 활용한 연안해운 중심성 평가에 관한 연구

이해찬; 박성훈; 여기태

doi:10.14400/jdc.2021.19.2.069

SNA를 활용한 연안해운 중심성 평가에 관한 연구
A Study on the Evaluation of Coastal Shipping's Centrality Using a Social Network Analysis 원문보기

디지털융복합연구 = Journal of digital convergence, v.19 no.2, 2021년, pp.69 - 81

이해찬 (인천대학교 동북아 물류대학원) , 박성훈 (인천대학교 동북아 물류대학원) , 여기태 (인천대학교 동북아 물류대학원)

초록
AI-Helper

연안해운은 국가 기간 운송망으로서 중추적인 역할을 수행하고 있으며, 도로운송에 비해 저렴한 비용으로 경제적인 운송이 가능하다는 측면에서 가치가 높다. 이러한 측면에서 본 연구는 국내 연안해운 중심성 분석을 통해 연안해운 항로 네트워크의 특성 및 중심성 변화를 살펴보는 것을 연구의 목적으로 한다. 이를 위하여 연안해운의 네트워크의 특성을 분석할 수 있는 SNA(Social Network Analysis) 분석방법을 활용하였다. 연구결과, 전라남도가 In-Degree 및 Out-Degree 모두 가장 높은 순위를 기록하며 연결 중심성이 제일 높은 것을 확인하였다. 매개 중심성은 전남이 가장 높은 순위를 보였으며, 근접 중심성의 경우 강원이 가장 높은 순위를 보였다. 허브와 권위 중심성 결과 전남이 가장 높은 순위를 기록했고, 경남, 강원 등의 순으로 높은 중심성이 도출됐다. 마지막으로, 허브 인덱스(Hub Index) 결과, 전남이 1순위로 도출됐으며, 인천, 기타지역, 강원 순으로 순위를 기록했다. 본 연구는 연안해운의 중추적인 역할을 맡고 있는 시·도 및 관련 품목을 제시하였다는 시사점이 있다. 향후 연구에서는 시·도에 속한 항만별 연구를 통해 연안해운의 흐름을 파악할 필요가 있다.

Abstract ▼ AI-Helper

Coastal shipping performs a pivotal role as a national transportation network and is highly valuable in terms of enabling more economical transportation at affordable prices than road transportation. In this regard, this study aimed to examine changes in the characteristics and centrality of South Korea's costal shipping sea-route networks by analyzing the centrality of domestic coastal shipping. To this end, social network analysis was used as an analysis technique that enables an analysis on the characteristics of coastal shipping networks. As a result, Jeollanam-do showed the highest degree centrality, ranking first in both the in-degree and the out-degree. Jeollanam-do also exhibited the highest betweenness centrality, and Gangwon-do registered the highest closeness centrality. In terms of hub and authority centrality, Jeollanam-do topped the list, followed by Gyeongsangnam-do and Gangwon-do in order. Lastly, Jeollanam-do ranked highest in the hub index, followed by Incheon, other regions, and Gangwon-do in order. This study is significant for suggesting the cities and provinces that play a key role in coastal shipping each year and their corresponding items. Future studies are recommended to identify the trend of coastal shipping through more detailed research on each port by city and province.

주제어

표/그림 (8)

표 Table 1. Trends in coastal shipping volume (2009-2018) (Unit: Thousand tons)
표 Table 2. 2018-2019 Coastal Shipping Top 3 Cargo Volume (Unit: Thousand tons)
표 Table 3. Main handling cargo items in Jeonnam, Gangwon, and Incheon in 2018 (Unit: Thousand tons)
표 Table 4. Main handling cargo items in Jeonnam, Gangwon, and Incheon in 2019 (Unit: Thousand tons)
표 Table 5. Results of In-Degree Centrality (2009-2019)
표 Table 6. Results of Out-Degree Centrality (2009-2019)
표 Table 7. Results of Betweenness Centrality (2009-2019)
표 Table 8. Results of Hub Index Centrality (2009-2019)

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