Abstract
The research verifies practical effectiveness of the concept of an “Amamizu (Rainfall) society,” which is equipped with a comprehensive water cycle system that encompasses flood control, water utilization, environmental preservation and quality of life of local people. How to verify effectiveness of the concept is measured by implementing prototype projects at various urban spaces. This is the research in the field of science and technology for society and the research conducts transdisciplinary approach which is carried out by researchers from various fields, practitioners and other stakeholders. We developed low-cost, attractive rainwater design techniques and implemented at a detached private housing and a junior-high school in the watershed. Results show that attractive implementations based on the concept possess multifaceted values. Moreover, projects that include the process of Intergenerational Co-Creation and participants easily join are effective to involve stakeholders. These projects are easy to work together other derivative projects, as a result people who are involved in projects understand the concept deeply and comprehensively.
