Longest rail network
With Marmaray and M5 line commissioned this year, Istanbul is now top on the list. Istanbul has a total rail network of 228 km with suburban, metro, tram and funnicilar line.
With Izban extensions and new tram lines, Izmir comes second with 178 km.
Ankara in 3rd in the list with 101 km with suburban system, Baskentray, opened last year.
Bursa keeps 4th rank with 47 km rail network.
With recently commissioned 1st phase of new tram line, Antalya is now on the 5th rank.
The total rail network length of Turkish cities are as follows:
Categories: Urban Transport
Rail Turkey En 
Has Gaziray actually opened? Surprised to see Gaziantep in the tables
No, not opened yet.. However Gaziantep also has tram lines..