본 연구는 지난 10년간 축적된 세종시와 주변 지역의 인구이동 및 통근통행 자료를 활용하여, 행정중심복합도시 건설에 따른 공간구조 변화를 종단면적으로 탐색하고 그 파급효과를 지역별로 구체화하고자 하였다. 이를 위해 행정중심복합도시 건설에가장 많은 영향을 받고 있는 인접 지자체와의 공간적 상호작용을바탕으로 구조적 변화를 분석하여, 세종시와의 상호관계 변화에따른 긍·부정의 영향을 구체화하는 과정으로 수행하였다. 이 연구는 궁극적으로 상호보완 관계를 바탕으로 하는 행정중심복합도시와 주변 지역의 발전방안에 대한 정책적 시사점을 제공하는목적을 갖는다.
The construction of a new city can change the existing settlements and the urban structure of the surrounding areas. In this context, the construction of the Administrative City in Sejong-si is causing structural changes in the Daejeon-Chungcheong area. This study empirically analyzed the manner in which the spatial characteristics of this migration occurred in connection with the previous research results that the construction of Sejong-si caused large-scale migration in the surrounding areas. This is because overall growth is more important than the zero-sum game in Sejong-si and surrounding areas, to successfully build the Administrative City. Therefore, this study primarily analyzed the spatial structure changes occurring in the area adjacent to Sejong-si owing to the construction of the Administrative City. Hence, the spatial interaction characteristics between regions at each time point were analyzed using data on migration and commuting between 2012, when Sejong-si was established, and 2020, when the second phase of the construction was completed. Consequently, the spatial structure was noted to rapidly change in Sejong-si and adjacent areas, and among them, areas with concentrated growth, areas with concern for decline, and areas showing a recovery trend after decline were derived. With the passage of the 10th anniversary of the establishment of Sejong-si and the establishment of the 2040 Administrative City Metropolitan Plan (2021), a policy for the growth of the urban area through inter-city linkage and cooperation is required. This finding is meaningful in that it presented policy implications for the win-win development of the Sejong city region.