[2] The Red (Outer) Line starts from Ataşehir Kavşağı and passes through Semra Aksu, Eski Havaalanı, Yenimahalle, Çiğli Bölge Hastanesi, Ata Sanayi and Evka 5 to reach Katip Çelebi Üniversitesi.

The trams returning from Katip Çelebi Üniversitesi then pass through İAOSB Nedim Uysal Lisesi, Mustafa Kemal Atatürk Bulvarı, İAOSB Müdürlüğü, Kemal Baysak, Nihat Karakartal and Nazım Hikmet Ran and reach Ataşehir Kavşağı again to complete the ring service.

[2] The Blue (Inner) Line starts from the Ataşehir Kavşağı, passes through Nazım Hikmet Ran, Nihat Karakartal, Kemal Baysak, İAOSB Müdürlüğü, Mustafa Kemal Atatürk Bulvarı and reaches İAOSB Nedim Uysal Lisesi.

Unlike the Outer (Red) Line, it continues its route from the switch area without stopping at Katip Çelebi Üniversitesi and passes through Evka 5, Ata Sanayi, Çiğli Bölge Hastanesi, Yenimahalle, Eski Havaalanı and Semra Aksu, and reaches the Ataşehir Kavşağı again, completing the ring service.

[3] The line is served by tramcars produced by Hyundai Rotem plant in Adapazarı.