A3 motorway (Serbia)
The A3 motorway begins near Šid, at the Batrovci border crossing with Croatia, and runs westward across the Syrmia region, near Sremska Mitrovica and Ruma.East od Dobanovci, the A3 continues through Belgrade as the Belgrade city motorway (Serbian: Аутопут кроз Београд), a 29 km (18 mi) long urban highway which ends at Bubanj Potok interchange where it meets the A1.The main toll stations of the A3 are located at Batrovci near Šid and Šimanovci near Dobanovci.It includes the exit to Nikola Tesla Airport, located just south of the A3.The A3 motorway is part of the old Belgrade-Zagreb motorway, known as Brotherhood and Unity Highway which was built after World War II, by young volunteers, and opened to traffic in 1950, first as a single carriageway.