Istanbul Tram Overview Owner Istanbul Metropolitan Municipality Transit type Tram Number of lines 2 (T1 & T4)[1] Number of stations T1: 31[2] T4: 22[3] Daily ridership T1: 320,000[2] T4: 95,000[3] Weekly ridership T1: 320,000[2] T4: 95,000[3] Operation Began operation T1: 13 June 1992 (1992-06-13)[2] T4: 12 September 2007 (2007-09-12)[3] Operator(s) Metro Istanbul Number of vehicles T1: 92 (55 Flexity Swift, 37 Citadis X-04)[2] T4: 78[3] Train length T1: 59 m (194 ft) Technical System length 33.8 km (21.0 mi) (total) T1: 18.5 km (11.5 mi)[2] T4: 15.3 km (9.5 mi)[3] Track gauge 1,435 mm (4 ft 8 1⁄2 in) standard gauge Electrification 750 V DC Overhead line Top speed T1: 70 km/h (43 mph) Route T1 diagram Kabataş Fındıklı Tophane Karaköy Golden Horn Eminönü Sirkeci Gülhane Sultanahmet Çemberlitaş Beyazıt Laleli-Üniversite Aksaray Yusufpaşa Haseki Fındıkzade Çapa-Şehremini Pazartekke Topkapı Cevizlibağ - AÖY Merkezefendi Akşemsettin Mithatpaşa Zeytinburnu Mehmet Akif Merter Tekstil Merkezi Güngören Akıncılar Soğanlı Yavuz Selim Güneştepe Bağcılar