• 1882 : building of a 17 km line between Tunis and Hammam-Lif.
  • June 1986 : the line was extended 6 Km to Borj Cédria.
  • June 1996: building of a 3rd track between Tunis and Hammam-Lif and equipment of the whole line with a Central Traffic Command.
  • June 1998: creation of Tunis Suburbs business Unit.
  • April 2012: extension of the line to Erriadh and electrification of the whole line.