A1 motorway (Romania)

The A1 motorway (Romanian: Autostrada A1) is a partially built motorway in Romania, planned to connect Bucharest with the Banat and Crișana regions in the western part of the country and the rest of Europe. When completed it will be 581 kilometres long, spanning the country from south-east to west. The motorway starts in the western part of Bucharest and connects the following cities: Pitești, Sibiu, Deva, Timișoara, Arad, connecting with Hungary's M43 motorway near Nădlac. As the motorway is built along the Trans-European Transport Networks Rhine-Danube Corridor its construction receives 85% funding from the European Union. The road is part of the proposed Via Carpatia route.

As of June 2025, the combined length of the opened sections totals 487 kilometres, with all the remaining sections under construction. The parts of the motorway currently in service include Bucharest – Curtea de Arges (140 km), Boița – Holdea (188 km) and Margina – Nădlac (158.8 km).

An additional segment, between Coșevița – Margina (13.5 km), which has several tunnels (2.1 km, in total) along its route is currently under construction

On the Pitești – Sibiu section, two segments were tendered as well: Pitești − Curtea de Argeș (30.4 km, lot 5) and Curtea de Argeș − Tigveni (10.7 km, lot 4), with the latter one awarded for construction in April 2019, and the first segment (Pitești − Curtea de Argeș) in May 2020.

In December 2024, the 16-km segment from Pitești to Curtea de Argeș (lot 5) was opened 8 months ahead of schedule.