Because the F3 runs along a concrete viaduct, it has been advertised as a Monorail even though it is technically a funicular railway.

[citation needed] The F3 route runs in southern Sarıyer, just west of Maslak.

The large majority of the route is elevated with a concrete viaduct and consists of two stations.

[3] The southeast terminus, Seyrantepe station, is located underground on the northern side of the O-2 expressway.

[4] The route is mostly single track, except for a short 147 m (482 ft) long double-track section in the middle allowing trains to pass one another.