네트워크 분석을 통한 공공자전거 따릉이의 이용특성에 대한 연구 - 서울특별시 노원구 대여소를 중심으로 -

Abstract

(Background and Purpose) To solve urban problems, Seoul operates Ttareungi and rental stations for public bicycles. In the installation stage, the behavior of users was investigated, but the existing survey was limited as it did not deal with actual movement routes and places of visit that could identify the purpose of use. Therefore, the purpose of this study was to supplement the limitations of existing research by using public data to analyze the centrality of social networks, characteristics of use, and visualization of movement routes. (Method) In this study, public data on rental history were used as the research data. The target location was Nowon-gu, Seoul, and the time range was 2017-2019. Through a literature review, the concept of public bicycles and the current state of their operation in Korea were determined. Next, a social network centrality analysis was performed to identify the major rental stations within the target site, and the top three rental stations were derived by year. To understand the characteristics of use, demographic characteristics, status of surrounding facilities, movement routes, and places of visit were investigated and analyzed. (Results) 1) In the analysis of centrality by year, the centrality of rental stations near Line 7 was found to be high, and the radius of movement increased each year. 2) Major rental offices were located in densely populated areas, such as residential, leisure, and commercial areas and transportation facilities. 3) Users of the major rental stations frequently rented and returned to the same rental station, and there were differences in the usage characteristics depending on whether the rental and return stations were the same. 4) When returning to another rental station, 70% of the users traveled a short distance of less than 2 km that could be reached within 10 min. When returning to the same rental station, users often rented for more than 30 min and moved 2 to 4 km, a relatively shorter distance than the usage time. This can be expected to cease during use. 5) The lane size of the visiting location was one or two lanes, and the use of the building was mixed with place of visit including commercial, residential, and unclassified buildings. (Conclusions) By analyzing the actual movement routes, this study found that Ttareungi is used as a transportation link to connect locations in narrow alleys, revitalize commercial areas, and relieve the concentration of facilities and traffic congestion. This study is significant as it confirmed that social network and visualization analysis can solve the limitations of the existing survey by identifying the usage behavior and purpose of rental stations.