The International Linear Collider (ILC) project is planned as Asia’s first major international science and technology hub, bringing together researchers from around the world to realize a vision that integrates superconducting technology, large-scale underground facilities, and the harmonious fusion of satoyama (traditional Japanese rural landscapes) with high technology. The ILC Vanguard Initiative was established with the premise of situating the ILC in Japan, collaborating with various organizations across government, industry, academia, and local communities to study the realization of the plan. This includes the construction of a new social model, the creation of new values, and the materialization of the plan. The primary focus of this research group is to advance preparations for urban development related to the future and growth of the prospective site locations, which require extensive surveys, facility reviews, and careful planning. By leading the world in this initiative, Japan aims to create an environment that enables the early realization of the ILC located in Japan. This paper will discuss the overview of the ILC project, focusing on the challenges related to site selection and the efforts of the ILC Vanguard Initiative in addressing these challenges.
