Otoyol 21A

O-21A
Route information
Part of E90
Length	32 km (20 mi)
Existed	1992–present
Major junctions
West end	/ D.750 near Tepeköy, Konya
East end	O-21 near Eminlik, Niğde
Location
Regions	Central Anatolia
Provinces	Konya, Niğde
Highway system
Highways in Turkey Motorways List State Highways List
← O-21 → O-22

Otoyol 21A, abbreviated as O-21A, is a 32 km (20 mi) long auxiliary otoyol connecting the and D.750 to the O-21. The motorway was opened in 1992 as a connecting route to Konya and passes through mostly uninhabited rural land. The O-21A is a part of the E90.

The motorway was deemed too short to receive its own O-XX designation, despite being longer than the O-50, but too long to be designated as an exit; therefore, the route was signed as the O-21A, and is the only otoyol route in Turkey to have an alpha-numeric route designation.

Exit list[]

Province	District	km	mi	Exit	Destination	Notes
Konya	Ereğli	0.0	0.0	-	— Konya	Continues as the D.330
		0.6	0.4	K153	D.750 — Zonguldak, Tarsus
Niğde	Ulukışla	17.6	10.9	K152	— Niğde, Ulukışla
		28.8	17.9	K151	Eminlik
		30.1	18.7	Eminlik Toll Plaza
		32.3	20.1	K15	O-21 — Niğde, Tarsus

Light blue indicates toll section of motorway.

See also[]

• List of highways in Turkey

External links[]

• Mersin Diyarbakır road map