Line M13, officially referred to as the M13 Söğütlüçeşme–Yenidoğan line, is a rapid transit line of the Istanbul Metro system, currently planned in the Asian part of Istanbul, Turkey. Built by the Metropolitan Municipality of Istanbul, the line will be long with 16 stations, and is expected to go into service in 2020s. The tender of this project was canceled on January 3, 2018. Stations References Istanbul Metro Transport infrastructure under construction in Turkey