Some typical subway project applications

12 lines including Beijing Subway Line 4-6, Line 8-10, Line 15, Airport Line, Yizhuang Line, Daxing Line, Beijing TCC, Changba Line and the subway network command center, accounting for 63% of Beijing's opened subway lines (19 lines). 6 lines of Guangzhou Metro, 9 lines including Shanghai Light Rail and Metro, 6 lines of Nanjing Metro, 5 lines of Tehran Metro in Iran, Qingdao Metro, Tianjin Light Rail, Ningbo Metro, Dongguan Metro, Vietnam Northern Railway, Nigeria Aka Railway and other rail transit projects.