Istanbul Metro

Note: 20th Page The Istanbul Metro (Turkish: İstanbul metrosu) is a rapid transit railway network that serves the city of Istanbul,  Tu rk ey . It is operated by Metro Istanbul (known as İstanbul Ulaşım A.Ş. before 2016), a public enterprise, controlled by the Istanbul Metropolitan Municipality. The oldest section of the metro is the  M1  line, which opened in 1989; it now includes 104 stations in service, with 64 more under construction The system consists of seven lines named  M1 , M2 ,  M3 ,  M4 ,  M5 ,  M6  and the  M7 . More lines are under construction or planned: M8 (Bostancı-Dudullu) is on the Asian side, while  M7  (Kabataş-Mahmutbey), M9 (Ataköy-İkitelli) is on the European side

Istanbul Metro is connected with the underground systems of the Marmaray tunnel (which connects the lines on the city's European and Asian sides) and the F1 funicular, and with the surface network of the T1 and T4 tram systems as well as the T5 tram