DescriptionIstanbulRailwaySystemsNetworkMap.svg Türkçe: İstanbul Raylı Sistemler Ağ Haritası English: İstanbulRailwaySystemsNetworkMap Date 11 December
and the map basically was drawn after some informations from the Web which are often incorrect or very inaccurate. So if you want the networkmap as accurate
File:IstanbulRailwaySystemsNetworkMap.svg is a vector version of this file. It should be used in place of this PNG file when not inferior. File:Istanbul