Magistrala 1 de metrou București (Dristor 2 – Pantelimon)

Primul tronson al rețelei: 8,63 km și 6 stații de-a lungul Dâmboviței, de la uzina Semănătoarea la Timpuri Noi, cu depoul la Ciurel. Lucrările la metrou au început în 1975, primul tren cu călători a circulat pe 19 noiembrie 1979, iar inaugurarea oficială a urmat pe 19 decembrie 1979. Decretul nr. 14 din 7 februarie 1978 a aprobat întreaga Magistrală I Militari – Titan (26,9 km și 17 stații: Semănătoarea – Republica plus ramurile Militari și Giulești) la 9.875 milioane lei în prețuri 1977, din care 7.514 milioane lei construcții-montaj. Decretul nu stabilește o valoare separată pentru acest tronson.

Eastern extension of 10.1 km and 6 stations to the Republica works, opened on 28 December 1981. Nicolae Grigorescu was named Leontin Sălăjan until 1990 and Costin Georgian was named Muncii until 1992

0.97 km and one station, the first piece of the northern arc that would close the loop. Planned in 1974 as a branch from Semănătoarea to Podul Grant, a station later replaced by Crângași

2.83 km and one station to the main railway station. Basarab was added as an infill station on 26 August 1992 and is the interchange with line M4, because Gara de Nord 1 and Gara de Nord 2 are separate stations outside the paid area

7.8 km and 6 stations across the north and east of the centre, closing the loop at Dristor 2. Opened as line M3 and the last metro investment of the communist government; it was later renumbered into M1, and the Eroilor – Preciziei branch took the M3 number instead

1.43 km spur to the depot with a single station, named Antilopa until 1992. It is single track with one usable platform, so only about one train in three runs beyond Republica. Dated 7 July 1991 by the newspaper Tineretul Liber; Metrorex's own history gives May 1991 and its 2014 activity report January 1990