⁴ᴷ⁶⁰ Exploring Istanbul's T4 Tram Line

T4 Topkapı - Mescid-i Selam tram line (Turkish: T4 Topkapı - Mescid-i Selam tramvay hattı) 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 15.3 km (9.5 mi). 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.

Most interestingly, line T4 has a considerably varied mix of rolling stock. Notably, the line uses old Duewag B80S and B100S cars obtained from Cologne's Stadtbahn system. It also uses LRVs built specifically for the system by Hyundai-Rotem, as well as home-built vehicles built by the transport operator. Enjoy!

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Taken in December 2022 and January 2023.