Global Tunnel Conference-China 2010November 17-18 sees the Global Tunnel Conference-China event revisiting Beijing. The conference theme is based on new technologies, new equipment and new methods to promote tunnel design, construction and operation. China is already the world's largest market for tunnels, and construction activity has not been affected by the recession. For instance, over 2,500 km of new metro line will be constructed over the next six years in 33 cities. At the same time, China's rail network will expand to become the largest anywhere, with over half of the lines in tunnel. Read the latest conference news release. Last chance for earlybird discount! 37/10.