Tavsantepe-Sabiha Gokcen airport metro (M4)
The scope, route, stops, connections and history of Tavşantepe-Sabiha Gokcen line which will extend Kadikoy-Tavsantepe metro to Sabiha Gokcen airport:
Kadikoy-Kartal-Tavsantepe metro (M4)
The scope, route, stops, connections and history of first metro of Asian side of Istanbul connecting Kadikoy to Kaynarca/Tavsantepe via Kartal.
Rail Turkey En 