Self-containment in Old New Town: Evidence from Senboku New Town using GPS tracking data

New Towns (NTs) are essential habitats in metropolitan areas with many residents. However, in Asian countries, NTs have a design gap between theory and practice from the viewpoint of self-containment. This study aims to clarify the home range and visiting areas of residents who live in old-NT across generations using GPS tracking data. The areas were classified as Senboku-NT, Senboku-GB, the urban centers, and the other areas. The visiting areas were analyzed by four facility types across generations (young individuals, adults, and older adults). As a case study, this study selected Senboku-NT, which has approximately 48,000 older adults aged 60 years and above, accounting for 43.0 % of the total population. The results showed that a significantly higher number of older adults live within Senboku-NT. As a result, according to urban facility types, a significantly higher number of older adults visited healthcare and leisure facilities in Senboku-NT. This finding is important because it indicates that healthcare and leisure facilities for older adults may have begun to achieve self-containment according to the change from NTs to old NTs. Therefore, we need to redesign the living environment to accommodate the changing lifestyles of the growing number of older adults in old NTs.