T4 Topkapı - Mescid-i Selam tram line () is a light rail line in Istanbul, Turkey, operated by Istanbul Ulaşım AŞ. It runs from Topkapı north to Mescid-i Selam, a total of . The T4 line operates its own right-of-way in a street median for most of its route, though with a few at-grade crossings, thus technically making it light rail though the operator Metro Istanbul categorizes it as a tramline.

The first section of the T4 line opened between Edirnekapı and Mescid-i Selam on 12 September 2007. An extension southwest of Edirnekapı to Topkapı was opened on 18 March 2009.

Connections to the M1 line are available at Vatan station, while connections to the T1 tram line and the Istanbul Metrobus are available at Topkapı station.

Stations Station Type Transfer District Notes Topkapı Level ・ İETT Bus: 31, 31E, 33B, 41AT, 50B, 71T, 72T, 73, 73F, 76D, 79Ş, 82, 85C, 85T, 89, 89B, 89K, 92, 92T, 97, 97A, 97B, 97BT, 97T, 500L, MR11 Zeytinburnu Southern terminus Fetihkapı İETT Bus: 31E, 33E, 33Y, 36Y, 41AT, 50B, 50K, 76T, 79E, 85C, 89C, 92K, 93M, 145M, 145T, 336Y, 500A, 500L, E-56 Vatan Viaduct (Vatan station)İETT Bus: 28, 31E, 35D, 38, 38B, 38E, 38Z, 41AT, 41ST, 50B, 50K, 87, 88A, 93M, 500A, 500L Eyüpsultan Park and Ride facility Edirnekapı Underground İETT Bus: 28, 31E, 35D, 36KE, 36V, 38, 38B, 38E, 38Z, 41AT, 41ST, 50A, 50B, 50K, 50P, 50V, 50Y, 86V, 87, 88A, 93M, 336E, 500L Original southern terminus Şehitlik Level İETT Bus: 36KE, 36V, 38, 38B, 38E, 38Z, 50A, 50B, 50K, 50P, 50V, 50Y, 86V, 88A, 336E Demirkapı İETT Bus: 36, 36KE, 36V, 38, 38B, 38E, 38Z, 50A, 50B, 50K, 50P, 50V, 50Y, 86V, 88A, 336E Topçular Underground İETT Bus: 36, 36KE, 36V, 38, 38B, 38E, 38Z, 50A, 50P, 88A, 336E Rami İETT Bus: 36, 36KE, 36V, 38, 38B, 38E, 38Z, 50A, 50P, 55Y, 336E Uluyol-Bereç İETT Bus: 36, 36KE, 36V, 38, 38B, 38E, 38Z, 336E Gaziosmanpaşa Sağmalcılar Level İETT Bus: 36, 36KE, 36V, 38, 38B, 38E, 38Z, 336E Bosna-Çukurçeşme İETT Bus: 36, 36KE, 36V, 336E Ali Fuat Başgil Underground İETT Bus: 36, 36KE, 36V, 336E Taşköprü İETT Bus: 36, 36KE, 36V, 336E Karadeniz İETT Bus: 36, 36KE, 36V, 336E, HT5 KİPTAŞ Venezia Level (Karadeniz Mahallesi station)İETT Bus: 36V, 336E Formerly known as Metris Cumhuriyet İETT Bus: 36V, 79GE, 79KM, 79KT, 336, 336E, 336G, 336M, 336Y Sultangazi 50. Yıl-Baştabya İETT Bus: 36V, 79GE, 79KM, 79KT, 336, 336E, 336G, 336M, 336Y Hacı Şükrü İETT Bus: 36V, 336E, 336Y Yeni Mahalle İETT Bus: 36V, 336E, 336Y Sultançiftliği İETT Bus: 36B, 36CB, 36CE, 36F, 36HT, 36L, 36V, 78C, 336E, 336MC, 336Y Cebeci İETT Bus: 36B, 36CB, 36F, 36HT, 36L, 36V, 78C, 79C, 336E, 336MC, TM18 Mescid-i Selam İETT Bus: 36B, 36CB, 36F, 36HT, 36L, 36V, 36Y, 38H, 48G, 50AB, 79C, 79F, 79KM, 79KT, 336, 336A, 336K, 336M, 336MC, H-6, TM18 ↓↓ 2029 Construct Planing ↓↓ Eski Habibler???? İETT Bus: 36B, 36CB, 36F, 36HT, 36S, 36V, 36Y, 38H, 48G, 79C, 79F, 79KM, 79KT, 336, 366A, 336K, 336M, 336MC, H-6SultangaziHabibler İETT Bus: 36B, 36CB, 36F, 36HT, 36S, 36V, 36Y, 48G, 79C, 79F, 79KM, 79KT, 336, 366A, 336K, 336M, 336MC, H-6Pirinççi İETT Bus: 36B, 36CB, 36F, 36HT, 36S, 36V, 36Y, 79C, 79F, 79KM, 79KT, 336, 366A, 336K, 336M, 336MC, H-6Eyüpsultan

Rolling stock ABB For a brief period of time, bulky high-floor ABB LRVs (similar to ones used in M1) were used. After additional rolling stock was added however these trains were moved to operate on the M1 line.

Duewag These are old B80S and B100S sets that were used on Cologne Stadtbahn and purchased in 2007. They were used on both T1 and T4 lines (including the ex-T2 that merged into T1) and with the arrival of Alstom Citadis trams on the T1 line they began to operate on the T4 line only.

Hyundai Rotem LRV34

From 2008, 63 units. Same vehicles used in on the Adana Metro and very similar to the LRTA 1100 class in Manila, Philippines. Unlike the other models, these only have a cab at one end.

RTE More recently (from 2014) new high-floor trams that were constructed by Metro Istanbul (the operator) itself are also used. During its development, there were intermediate models (RTE 2000 and RTE 2009) that operated on the line.

See also Istanbul Tram Istanbul Metro Istanbul nostalgic tramways Public transport in Istanbul

References