T4 (Istanbul Tram)
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
