Zhujiang New Town Automated People Mover System (Chinese: 珠江新城旅客自动输送系统), or APM line, is an automated people mover (APM) system mainly serving the Zhujiang New Town area in Guangzhou, the new CBD of the city. All of its stations are underground. In terms of construction cost per kilometre, it is the most expensive people mover system in the world, yet it is the shortest and least used line in the Guangzhou Metro network. The whole line began service before the Asian Games on 8 November 2010 with the exception of Haixinsha and Canton Tower. This was due to the two stations being located close to the opening ceremony venue.