China's remarkable urban development and importantly, its rapid underground infrastructure expansion, was on show when the international underground construction industry gathered for the
World Tunnel Congress in Shenzhen. Delegates up to 3,000 representing 60 different countries heard from leading central and local Government officials of China and from representatives of the
United Nations about how it is clear that at all levels the underground dimension are vital to the efficient and healthy functioning of society and for addressing critical issues that confront the global
community currently.