From February 11 to 25, the authority must once again close the line to passengers as part of the upcoming extension. RATP warns of the risks of saturation for the next school holidays.

It will change the current, almost thirty-year-old operating system of the automatic metro. With just the 35 trains running today, the system is at the limit of what it can do, says Stéphane Garreau, director of the project. The rest after this ad will be open to passengers.