Otoyol 3

Otoyol 3 (English: Motorway 3), also known as the European Motorway (Turkish: Avrupa Otoyolu) and abbreviated as the O-3 is a 245.1 km (152.3 mi) long otoyol in East Thrace, Turkey. The O-3 runs from Edirne to Istanbul and is the only motorway in Turkey located entirely in Europe. The motorway begins west of Edirne at a junction with the D-100 where it then continues as a beltway passing just north of Edirne. From there, the motorway passes through mostly rural farmland until it enters the Istanbul metropolis near Silivri. The eastern end of the O-3 is at the interchange with the O-1, where the motorway becomes Vatan Caddesi and continues into the historic peninsula of Istanbul as a major boulevard.

O-3
Otoyol 3
European Motorway Avrupa Otoyolu
Route information
Part of E80 and
Length	245 km (152 mi)
Existed	1987–present
Major junctions
West end	D.100 near Edirne
	D.555 near Karamesutlu O-7 in Mahmutbey, Istanbul O-2 in Mahmutbey, Istanbul
East end	O-1 in Eyüp, Istanbul
Location
Regions	Marmara
Provinces	Edirne, Kırklareli, Tekirdağ, Istanbul
Major cities	Edirne, Istanbul
Highway system
Motorways in Turkey List ← O-2 → O-4

Mahmutbey Toll Plaza on the O-3

Karasu Viaduct on the O-3

The O-3 connects with three other motorways, all in Istanbul; the O-1, O-2 and the O-7; and is a part of the E80, the International E-road network and of the Asian Highway Network. The motorway has six lanes, three in each direction, except for a 44.6 km (27.7 mi) section between Silivri and Esenyurt.