The A3 motorway is a partially built motorway in Romania, planned to connect Bucharest with the Transylvania region and the north-western part of the country. It will be 596 km long and will run along the route: Ploiești, Brașov, Făgăraș, Sighișoara, Târgu Mureș, Cluj-Napoca, Zalău and Oradea, connecting with Hungary's M4 motorway near Borș.

Bucharest is the capital and largest city of Romania. The metropolis stands on the River Dâmbovița in south-eastern Romania. Its population is officially estimated at 1.76 million residents within a greater metropolitan area of 2.3 million residents, which makes Bucharest the 8th most-populous city in the European Union. The city area measures 240 km2 and comprises 6 districts (Sectoare), while the metropolitan area covers 1,811 km2. Bucharest is a beta global city, a major cultural, political and economic hub, and the country's seat of government.