Management of a small-community waste-food cycle on an inhabited island in Kushimoto town to address Japanese sub-urban shrinking city problem

This paper studies an Infra-Free (IF) scenario in a Japanese shrinking sub-urban city (Kushimoto) by proposing a vertical food tower build on an inhabited island (Tsuyajima) that could use solid and liquid waste from a community (Ki-oshima) and provide food in return. Despite the fact that Japan has 426 inhabited islands, increasing waste production and the fact of 60% import of its food consumption; the focus on Tsuyajima island investigates how an community-integrated waste-to-food cycle could contribute to the physical, social and economical infrastructure and become a unique architectural landmark to directly/indirectly influence urban life quality and tourism.