Establishment of Commuting Areas in the Workplace Population using Network Analysis - Based on Mobile Travel Big Data -

네트워크 분석기법을 활용한 직장인구 통근·통행권역 설정 - 모바일 생활 통행 빅데이터를 기반으로 -

The importance of establishing a regional living area outside the boundaries of administrative districts is emerging. This is because if an appropriate spatial range reflecting population movement is not considered, the results of spatial concentration and dispersion may proceed very quickly, resulting in bias of population movement and population imbalance. Recently, research has begun to set a region by processing log records of mobile base station data into passing data. Therefore, in this study, based on mobile mobile travle data provided by SKT base station, it was processed and constructed as an OD matrix for external and internal movement of the workplace population in Gyeongsangnam-do, and then centrality analysis and cohesion analysis were conducted. As a result of centrality measurement and community analysis, in the connection degree centrality analysis, out-of-province movement was high in Gimhae-si, Yangsan-si, and Changwon-si. In the case of movement within the province, it can be seen that Changwon-si and Gimhae-si, Haman-gun have more potential than other regions. The results of the betweenness centrality analysis were high in Changwon-si, Gimhae-si, Jinju-si, and Hamyang-gun in the case of out-of-province movement. In the case of internal movement, Changwon-si, Jinju-si, Haman-gun, and Gimhae-si were high. The results of the eigenvcector centrality analysis were high in Gimhae-si, Yangsan-si, and Changwon-si in the case of out-of-province movement. In the case of movement within the province, it was found that Changwon-si, Gimhae-si, and Haman-gun showed high power centrality. Finally, a cohesion analysis was conducted based on the movement network of the workplace population in Gyeongsangnam-do. Through this, groups with strong cohesion even within the network were grouped into several subgroups according to certain criteria, and the central commuting area was derived. As a result of the analysis, the moving community of the workplace population outside of Gyeongsangnam-do was divided into a total of four communities, and the moduarlity was 0.833 and was derived as a relatively objective value. The moving community of the workplace population in Gyeongsangnam-do was also divided into four communities, and modularity was also analyzed as a relatively objective value of 0.808. This study is meaningful in that it examines commuting and traffic areas at the level of local small and medium-sized cities, and a new plan execution space unit called commuting and traffic areas of the workplace population was derived. In the future, it can be considered as a basic reference indicator in the promotion of regional plans at the urban level.