From Nov.1 to Nov. 4, Chin Communication and Transportation Association held "2011 Beijing International Urban Rail Transit Construction, Operation and Equipment Exhibition". During the time, Chongqing Rail Group held 2011 China (Beijing) International Forum on Urban Monorail, analyzed the among the latest being-built lines - "17-line and 1 ring", except Line 2 and Line 3, there are 2 light rail lines.