To this end, two “Ideathons” were organized to link the national ambitions with the local interest in successfully adapting their urban settings to changing demographics. The first Ideathon was held 3–4 October, 2019, in Chino City, Nagano Prefecture, Japan with more than 20 participants discussing requirements for, and uses of, the Urban Planning ADE.
But things got really exciting from 12–14 February, 2020, when the second Ideathon was held. More than 310 people in total attended this Ideathon to share their experiences in use of the Urban Planning ADE, OGC KML, and citizen engagement. Participants discussed how to use Urban Planning ADE based on various cases and confirmed its effectiveness from the perspectives of land use, disaster prevention, and co-creation of urban plans with citizens.