Small and medium-sized cities with a population of less than 300,000 tend to decline by and large in all areas, unlike large cities where urban decline is concentrated in specific areas. A significant number of places are facing deterioration due to population decline. While small and medium-sized cities are urgently in need of survival strategies, local governments have implemented various regeneration projects subsidized by the state, but have not had a significant impact on improving the lives of local residents or revitalizing the economy. The problem lies in that regional revitalization policies including
urban regenerations of small and medium-sized cities have failed to differ significantly from the spatial management methods of the past developmentoriented era. To overcome these limitations, smart urban shrinkage policies are needed that can promote self-reliance and sustainability. Eventually, these cities require action plans that ensure economic, social, and built environment sustainability, which means that progressive and sustained regional revitalization projects are necessary by ensuring urban spatial management measures that actively respond to changes in social conditions.

This study aims to propose a place-based integrated management planning based on the estimation of spatial demand according to population changes in small and medium-sized cities. Also it suggests the government support system improvements of regional revitalization projects including the Urban Regeneration New Deal policy run on a competition basis.