The construction works of the metro line which was projected by 10.582 meters line and 11 stations  between Tandoğan and Keçiören started in 15.07.2003. The part covering 9.220 meters lenght of line and 9 stations between Keçiören- AKM stations was transferred to the Ministry of Transport with the protocol dated 25.04.2011 in 13.12.2011 a tender and in 02.02.2012  a contract made by the relevant ministry for this line. in 05.01.2017 the whole line has taken over and set into operation by our corporation.

The tender works (3.3 km line, 3 stations) that is about  linking the metro line from A.K.M  station to Kızılay by passing tcdd high-speed train station still continues