The station areas located in the core and the sub-core of ‘Gang- nam’ are the densest among the station areas of the city, and those of the other sub-cores adjacent to the core and the regional and lo- cal footholds are moderately denser (see Figs. 1 and 2a). The CBD area, in which the core and the sub-core of ‘Yongsan’ are located, has a predominance of employment and shopping activities, but residence activities are the majority in the fringe areas where the regional and local footholds are located. The sub-central area, in which the sub-cores are located, shows mixed activities with a preponderance of employment and shopping. The destination-oriented station areas of the core and sub-cores indicate higher subway ridership (see Fig. 2d).