A Before-and-After Study in Changes of the Railway Network Centrality on Dongdaegu Multi-Modal Transit Hub: Focused on PageRank Centrality

Jiyun Shim; Kyounga Park; Jae Hyun Lee

doi:10.7470/jkst.2022.40.5.669

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A Before-and-After Study in Changes of the Railway Network Centrality on Dongdaegu Multi-Modal Transit Hub: Focused on PageRank Centrality 동대구역 복합환승센터 개소 전후 철도 네트워크 중심성 변화 분석: PageRank Centrality를 중심으로

31 October 2022. pp. 669-682

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Abstract

In order to establish policies for national development, it is essential to understand and reflect urban space in the context of transportation network. Although the multi-modal transit hub of Dongdaegu station is a model example that allows an analysis of an opening effect of a major transportation facility on changes in transportation demand in both urban and inter-regional railway networks, there is no ample research available. Thus, the purpose of this study is to analyze the effect of changes in urban characteristics on railroad passenger demand and the change of its centrality before and after the opening of the Dongdaegu Multi-modal Transit Hub. The PageRank network centrality measure was used to observe the changes in the importance of Dongdaegu Station with multiple datasets of railway passenger Origin-Destination flow. The results of the analysis show that the number of passengers in Dongdaegu Station increased significantly in 2017 compared to 2016, when the Multi-modal Transit Hub was opened. In addition, the centrality of Dongdaegu Station steadily increased, showing the second highest centrality in Daegu urban railway network and inter-regional railway network in Korea. The results of this study can be used to develop eco-friendly transport policies for urban and regional development plans as well as to understand changes in urban structure and regional interactions.

Keywords

inter-regional railway

multi-modal transit hub

PageRank network centrality

railway passenger demand

urban railway

국가발전을 위한 정책을 수립하는 데 있어 도시 공간을 교통의 맥락에서 이해하고 반영하는 과정은 필수적이다. 2016년 개소한 동대구역 복합환승센터는 교통거점시설의 개소 효과를 분석할 수 있는 대표적인 사례이나, 이를 교통 측면에서 분석한 연구는 미진한 실정이다. 이에 본 연구는 동대구역 복합환승센터의 개소 전후 도시 특성 변화가 철도 여객 수요에 미친 영향 및 이에 따른 동대구역의 철도망 내 중요성 변화를 분석하고자 한다. 데이터는 대구교통공사, Korail 및 SR에서 각각 제공받은 도시철도, 고속 ‧ 일반철도 기종점 통행량 자료를 이용하여 철도 여객의 수요 변화를 분석하였으며, 대구광역시 내에서는 구군별/거리별로, 지역 간에서는 권역별/거리별로 구분하여 살펴보았다. 이후 동대구역이 차지하는 중요도의 변화를 살펴보기 위해 통행량 자료를 기반으로 한 PageRank 중심성 지수도 함께 분석하였다. 분석 결과, 동대구역을 기종점으로 하는 도시철도 및 지역 간 철도 통행량은 환승센터가 개소한 2016년 대비 2017년에 큰 폭으로 증가하였다. 또한, 동대구역의 중심성은 꾸준히 증가하며, 지역 내 및 지역 간 철도 모두에서 두 번째로 높은 중심성 수치를 보였다. 본 연구는 지속 가능한 녹색성장 정책, 친환경 교통 등을 포함한 도시 및 지역발전계획 수립에 기초자료로 활용될 수 있을 것으로 기대된다.

키워드

지역 간 철도

복합환승센터

PageRank 네트워크 중심성

철도 여객 수요

도시철도

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Information

Publisher :Korean Society of Transportation
Publisher(Ko) :대한교통학회
Journal Title :Journal of Korean Society of Transportation
Journal Title(Ko) :대한교통학회지
Volume : 40
No :5
Pages :669-682
Received Date : 2022-07-25
Revised Date : 2022-08-16
Accepted Date : 2022-09-06
DOI :https://doi.org/10.7470/jkst.2022.40.5.669

Journal of Korean Society of Transportation ISSN:1229-1366(Print) 2234-4217(Online) 대한교통학회지

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