The percentage of older adults aged 65 years or above is predicted to reach 20% of the total population in South Korean by 2025. The Ministry of Health and Welfare enacted the Framework Act on Low Birth Rate in an Ageing Society, with the aim of formulating national-scale community-based policies on the ageing society. The World Health Organization (WHO) also highlighted the need to creat age-friendly (AF) cities as a simultaneous response to the increase in aged population and the side effects of urbaniation and urges countries worldwide to make efforts to develop guidelines on how to construct AF cities and establish global networks. WHO and Korea’s 4th Basic Plan for an Aginng Society('21~'25) ordered responses to the ageing society by creating an AF community and living environment. The Presidential Committee on Ageing Society and Population Policy, chaired by President Moon Jae-in, presented the task of ‘development and application of AF indicators’ to have

the rationale and evidence for national and regional policies to respond to an ageing society. The purpose of this study is, therefore, to support the establishement of evidence-based policies to resond to an ageing society by developing and applying a pilot index that can quantitatively evaluate the age-friendliness of the physical, social, and service environment of 17 metropolitan cities and provinces nationwide.