Bucharest

Road, tram and pedestrian overpass of 1,920 m closing the inner ring of Bucharest between Nicolae Titulescu Boulevard and Grozăvești Road. It crosses the Dâmbovița river and the throat of Gara de Nord. The cable-stayed section, designed by Javier Manterola and carried on two pylons of about 84 m with 60 cables, is 44.5 m wide, the widest cable-stayed bridge in Europe. Astaldi and FCC Construcción built it between November 2006 and June 2011 at a cost of about €255 million; it carries around 50,000 vehicles a day and Bucharest's only circular tram line.

The oldest line of the Bucharest Metro, handed over on 16 November 1979 between Semănătoarea (now Petrache Poenaru) and Timpuri Noi. Five further sections opened by 1989 closed it into a loop around the city centre, and a single-track spur from Republica to Pantelimon followed in 1991. Metrorex records the line as 31.01 km with 22 stations. Since 4 July 2009 the 8.67 km between Eroilor and Nicolae Grigorescu have carried line M3 as well.

The north to south line through the centre of Bucharest, and the busiest on the network with 52.5 million passengers in 2023. It opened in two steps, Piața Unirii to Depoul I.M.G.B. in January 1986 and Piața Unirii to Pipera in October 1987, with Piața Romană inserted in 1988 after having been dropped from the plan. Metrorex records 20.28 km and 15 stations. The one later addition is the surface extension to Tudor Arghezi, opened on 15 November 2023.

The east to west line of the Bucharest Metro, made of two branches that own no track between them. The western branch from Eroilor to Industriilor, now Preciziei, opened on 19 August 1983 as a branch of M1; the eastern branch from Nicolae Grigorescu to Anghel Saligny was started in 1988, abandoned in 1996 with the tunnels flooded, restarted in 2004 and opened in November 2008. The two ran as separate shuttles until 4 July 2009, when they were joined over the M1 tracks between Eroilor and Nicolae Grigorescu. Metrorex therefore gives the line as 13.53 km plus 8.67 km shared with M1.

The shortest line of the Bucharest Metro, running north-west from Gara de Nord 2 along Calea Griviței and Bucureștii Noi to Străulești. Construction started in September 1989 and stopped after the revolution, so the first section opened only on 1 March 2000, followed by Parc Bazilescu in 2011 and Străulești in 2017, all financed with European Investment Bank loans. Metrorex records 7.44 km and 8 stations in operation. The section from Gara de Nord 2 to 1 Mai will also carry line M6 to the airport, and an 11 km southern extension to Gara Progresul went to tender in April 2024.

Newest line of the Bucharest Metro, serving the dense Drumul Taberei district. The first phase runs 6.9 km from Râul Doamnei to Eroilor with 10 stations, including the Valea Ialomiței branch towards the depot; construction started in April 2011 and, after repeated delays, the line opened on 15 September 2020 at an expected cost of €708.6 million with EU support. Phase II would extend the line east from Eroilor under the city centre to Iancului, and a third phase on to Pantelimon on the M1.

Metro line under construction between Bucharest's main railway station, Gara de Nord, and Henri Coandă International Airport at Otopeni: about 17.8 km with 16 stations, four of them shared with line M4. Phase II (1 Mai–Tokyo, 6.6 km, 6 stations) started in December 2023 and phase III (Tokyo–Airport, 7.6 km, 6 stations) in March 2025, with completion expected by 2028. The estimated €1.2 billion cost is covered from the national budget, EU funds and a JICA (Japan International Cooperation Agency) loan. It will be the airport's second rail connection, after the Gara de Nord–Otopeni surface link that opened in 2020.

Rail link connecting Bucharest's main station, Gara de Nord, with Henri Coandă International Airport at Otopeni, opened in December 2020. The roughly 3 km new connection, including a 1.5 km viaduct over the DN1 national road, ends at a station in front of the airport's Arrivals terminal. Trains operated by CFR Călători and Transferoviar Călători run 24 hours a day, roughly every 40 minutes, with a journey time of about 20–25 minutes.