Ankara Metro Ankara Metro The Ankara Metro () is the rapid transit system serving Ankara, the capital of Turkey. At present, Ankara's rapid transit system consists of five metro lines – the "Batıkent Metrosu (M1)", the "Koru Metrosu (M2)", the "Törekent Metrosu (M3)" lines and the new "Keçiören Metrosu (M4)" line opened in 2017, along with the light rail "Ankaray" line. The Ankaray, the M1, M2 and M3 lines, together transported 104.1 million passengers in 2014. That corresponds to a ridership of approximately 289,155 per day. The "Kızılay to Atatürk Cultural Center" link of M4 is not yet opened and remains under
History of Ankara tetrarchy, a system of multiple (up to four) emperors introduced by Diocletian (284-305), seems to have engaged in a substantial programme of rebuilding and of road construction from Ankara westwards to Germe and Dorylaeum (now Eskişehir). In its heyday, Roman Ankara was a large market and trading center but it also functioned as a major administrative capital, where a high official ruled from the city's Praetorium, a large administrative palace or office. During the 3rd century, life in Ancyra, as in other Anatolian towns, seems to have become somewhat militarised in response to the invasions and instability of the town.