Otoyol 1

O-1
Otoyol 1
The First Beltway 1. Çevreyolu
Route information
Length:	24 km (15 mi)
Existed:	1973 – present
Major junctions
West end:	D.100, O-3 in Eyüp, Istanbul
East end:	Bağdat Ave. in 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 O-1 and locally referred to as The First Beltway (Turkish: 1. Çevreyolu), is a controlled access highway in Istanbul, Turkey. The O-1 serves as the Inner Beltway and is one of three beltways in the city, the others being the O-2, and O-7,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. The O-1 is connected via three feeder highways to The Second Beltway.

O1 Haliç Bridge Halıcıoğlu entrance

O1 Haliç Bridge Ayvansaray entrance

Exit list

Province	District	km	mi	Exit	Destinations	Notes
Istanbul	Eyüp	0.0	0.0	K1	O-3 — Edirne / D.100 — Kapıkule
		1.2	0.7	K2	Rami Kışla Cd.	Eastbound entrance and westbound exit
		1.6	1.0	K3	Yavedut Cd. / Beylerbeyi Cd. / Halıcıoğlu Okmeydani Cd.
	Golden Horn	1.9	1.2	Haliç Bridge
	Beyoğlu	2.8	1.7	K4	Halıcıoğlu Okmeydani Cd.	Westbound exit
		3.7	2.3	K5		Eastbound entrance
	Kağıthane	4.4	2.7	K6	Hasdal-Okmeydanı connector — O-2
		4.5	2.8	K7	Darülaceze Cd.	Eastbound entrance
		6.5	4.0	K8	Piyalepaşa Blv.
	Şişli	8.3	5.2	K9	Büyükdere Cd.	Eastbound exit via K8
		9.4	5.8	K10	Barbaros Blv.
	Beşiktaş	10.7	6.6	K11	Barbaros Blv.	Eastbound entrance and westbound exit
	Bosphorus	11.8	7.3	Bosphorus Bridge (₺7.00 toll, eastbound only)
	Üsküdar	13.8	8.6	K12	Beylerbeyi Kavşağı
		15.2	9.4	K13	Şile Motorway — O-2
		16.0	9.9	K14	Acıbadem Cd.	Eastbound exit
		16.9	10.5	K15	O-4 — O-2, Kocaeli, Ankara	Eastbound exit, westbound entrance and exit
		18.4	11.4	K16	D.100 — Gürbulak
	Kadıköy	19.9	12.4	K17	F. Kerim Gökay Cd.	Eastbound exit and westbound entrance
		20.5	12.7	-	Bağdat Cd.	Trumpet interchange
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Incomplete access       Tolled

See also

• List of highways in Turkey

External links

• Istanbul road map