Work in the metro: the schedule of traffic interruptions in 2025

Renewal of tracks, electrical equipment, control systems… The reasons for these projects are diverse. The 16 lines of the current metro (including 3 bis and 7 bis) each have their own histories and characteristics. To the point that the CEO of the RATP group, Jean Castex, often talks about the “two” networks which coexist today in the underground of Greater Paris. On one side, lines with recent or even state-of-the-art equipment (lines 1, 2, 4, 5, 9, 11 and 14). On the other, axes where the trains accumulate several decades of service, necessarily less efficient and less reliable (lines 3, 6, 7, 8, 10, 12 and 13).