F4 (Istanbul funicular)

The F4, officially referred to as the F4 Boğaziçi Üni./Hisarüstü–Aşiyan funicular line (Turkish: F4 Boğaziçi Üni./Hisarüstü–Aşiyan füniküler hattı) is a 800 m (2,600 ft) long funicular railway in Beşiktaş, Istanbul.[1][2] When opened on 28 October 2022, it became the fourth funicular line in Istanbul as well as the longest, surpassing the F3 line by 100 m (330 ft).[2] The F4 line will traverse a height difference of about 116.1 m (381 ft) and total travel time is estimated at 2 minutes and 30 seconds.[1]

F4 Boğaziçi Ü./Hisarüstü–Aşiyan
Overview
Status	Operating
Owner	Istanbul Metropolitan Municipality
Locale	Istanbul, Turkey
Termini	Boğaziçi Üni. station, Beşiktaş (West) Aşiyan station, Beşiktaş (East)
Stations	2
Service
Type	Funicular
System	Istanbul Metro
Route number	F4
Operator(s)	Metro Istanbul A.Ş.
History
Opened	28 October 2022
Technical
Line length	0.8 km (0.50 mi)
Number of tracks	1
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Route map Line F4 Rumeli Hisarüstü Aşiyan

The line begins at Boğaziçi Üniversitesi station and heads east to Aşiyan along the Bosporus. It is connected to the M6 line at Boğaziçi Üniversitesi. The entrance to Boğaziçi Üniversitesi station is constructed next to the main entrance to Boğaziçi University.[1]