Otoyol 20

Otoyol 20, O-20, Ankara Çevre yolu, is a motorway in Ankara, Turkey that forms the ring road of the city. The long beltway connects in the northwest to the Anatolia Motorway, and in the south to Ankara-Adana Motorway.
The beltway is a four lane motorway in both directions on its length.
The beltway is the only ring motorway in Turkey to form a complete ring.

Province	District	Exit No.	Name	Notes
Ankara	Yenimahalle	K1	– Bolu, İzmit, Istanbul
Ankara	Etimesgut	K2	1. TBMM Cd.
Ankara	Etimesgut	K3	– Ayaş
Ankara	Etimesgut	K4	Istasyon Cd.
Ankara	Etimesgut	K5	Ahi Mesud Blvd.
Ankara	Etimesgut	K6	– Eskişehir, Uşak, İzmir
Ankara	Gölbaşı	K7	Turgut Özal Blvd.
Ankara	Gölbaşı	K8	– Konya, Adana
Ankara	Gölbaşı	K9	– Konya, Adana
Ankara	Çankaya		Karataş Viaduct	600 m
Ankara	Çankaya	K10	Nato Yolu Cd.
Ankara	Mamak	K11	Mavi Göl Cd.
Ankara	Mamak		Bayındır Dam Bridge	400 m
Ankara	Mamak	K12	– Samsun
Ankara	Mamak		Samsun Road Bridge	400 m
Ankara	Mamak	K13	Yeşil Kuşak Cd.
Ankara	Altındağ		Çubuk 1 Dam Bridge	300 m
Ankara	Keçiören	K14	– Esenboğa International Airport
Ankara	Keçiören	K15	Bağlum Blvd.
Ankara	Keçiören	K16	Yozgat Blvd.
Ankara	Yenimahalle	K17	Anadolu Blvd.
Ankara	Yenimahalle	K18	Batıkent Yolu
Ankara	Yenimahalle	K19	– Bolu, Sakarya, Istanbul