[2][3][4] The T6 line uses approximately 8.3 kilometres (5.2 mi) of track previously used by the Istanbul Sirkeci-Pythio Railway and Istanbul suburban closed since August 12, 2013[5] as part of construction of the Marmaray, running on refurbished tracks through Sirkeci and Kazlıçeşme.

The line currently uses repainted TCDD E32000 units used on the Marmaray line, but is expected to have modernized nostalgic tram vehicles, although when these nostalgic tram vehicles will be put into operation remains unclear.

[2] With the completion of this project, it is once again possible for regional and international trains to depart from Sirkeci as before, and for trains carrying dangerous goods that could not use the Marmaray Tunnel to be transported from Sirkeci to Haydarpaşa by train ferry.

[6] The line is defined as a rail line by the Ministry of Transport and Infrastructure, but defined as a light rail or tram system by the Istanbul Metropolitan Municipality (IBB).

[7] Media related to Istanbul Tramway line T6 at Wikimedia Commons