By 2023, there will be 28 subway lines and 4 15 stations in Chongqing (including planning). The lines are Guobo Line, Rail Transit 10 Line, Rail Transit 1 0 Line, Rail Transit Line 2, Rail Transit Line 3, Rail Transit Line 4, South Section of Rail Transit Line 5, Rail Transit Line 6, Inner Rail Transit Ring Road, Outer Rail Transit Ring Road, Rail Transit River Crossing Line, Rail Transit Line 6 Extension Line and Rail Transit Line 60 respectively.