Otoyol 1

O-1
Otoyol 1
Istanbul Inner Beltway İstanbul 1. Çevreyolu
Route information
Length:	24 km (15 mi)
Existed:	1973 – present
Major junctions
From:	Osmaniye, Bakırköy, Istanbul
To:	Söğütlüçeşme, Kadıköy, Istanbul
Location
Regions:	Marmara
Provinces:	Istanbul Province
Major cities:	Istanbul
Highway system
Highways in Turkey Motorways State roads

Otoyol 1 (English: Motorway 1), abbreviated as and locally referred to as İstanbul 1. Çevreyolu (English: Istanbul Inner Beltway), is a controlled access highway in Istanbul, Turkey. The O-1 serves as the Inner Beltway and is one of two beltways in the city, the other being the O-2, as well as connecting the European and Asian parts of the city via the Bosphorus Bridge.

It starts Osmaniye neighborhood in Bakırköy district on the European part, runs through the city over the Golden Horn and the Bosphorus, and terminates in Söğütlüçeşme neighborhood of Kadıköy district on the Asian part. Otoyol 1 is toll-free, however the Bosporus Bridge is a toll bridge in the eastward direction only, having its toll plaza at the Asian side. O-1 is connected via three feeder highways to İstanbul 2. Çevreyolu (Istanbul Outer Beltway) .

O1 Haliç Bridge Halıcıoğlu entrance

O1 Haliç Bridge Ayvansaray entrance

District	km		Exit No.	Destinations	Notes
Bakırköy	0	0	K1	Osmaniye
Fatih	0.9	0.9	K2	Topkapı (Also serves to Aksaray, Fatih, Taksim)
Fatih	1.7	2.6	K3	Vatan Cad. (Also serves to Aksaray, Bayrampaşa, Gaziosmanpaşa, Esenler and Bağcılar)	Feeder to
Eyüp	1.6	4.2	K4	Edirnekapı (Also serves to Fatih and Bayrampaşa)
Fatih	1.2	5.4	K5	Ayvansaray (Also serves to Eyüp)
Fatih, Beyoğlu				Golden Horn Bridge
Beyoğlu	0.6	6.0	K6	Halıcıoğlu (Also serves to Kasımpaşa and Sütlüce)
Kağıthane	1.8	7.8	K7	Okmeydanı (Also serves to Dolapdere and Kasımpaşa)	Feeder to (Also serves to Kağıthane and Kemerburgaz)
Şişli	2.1	9.9	K8	Çağlayan (Also serves to Şişli and Kağıthane)	Piyalepaşa Ave.
Beşiktaş	2.9	12.8	K9	Barbaros	Barbaros Ave. Last exit before the toll bridge
Beşiktaş	1.0	13.8	K10	Balmumcu (Also serves to Beşiktaş and Sarıyer)	Westbound only
Beşiktaş			V408 / V409	Ortaköy Viaduct[1] 411 m (1,348 ft) / 362 m (1,188 ft)
Üsküdar				Bosphorus Bridge 1,074 m (3,524 ft)
Üsküdar				Toll plaza of the Bosphorus Bridge Toll payment for east-bound only
Üsküdar	3.2	17.0	K11	Beylerbeyi (Also serves to Üsküdar and Beykoz)
Üsküdar				Parking Area Westbound only
Üsküdar	1.6	18.6	K12	Altunizade (Also serves to Üsküdar)	Last exit before the toll bridge Feeder to (Also serves to Çamlıca, Ümraniye and Şile)
Kadıköy				Acıbadem	Eastbound exit only (no entrance)
Kadıköy	2.0	20.6	K13	Çamlıca	Feeder to and
Kadıköy	3.2	23.8	K14	Uzunçayır
Kadıköy	2.0	25.8	K15	Söğütlüçeşme (Also serves to Kadıköy and Üsküdar and bounded to costroad from Üsküdar to Alt Kaynarca)

See also

• List of highways in Turkey

References

1. Yüzügüllü, Özal. "İstanbul Otoyol Köprü ve Viyadüklerinin Deprem Performanslarının Değerlendirilmesi". IMO Istanbul (in Turkish) (TMMOB IMO) (53). Retrieved March 28, 2009.

External links

• Istanbul road map