Proposition Metro Paris Line 13 Route

I have a suggestion for the New routes.
I am French and I am offering you a new update on the Parisian metro in particular the line 13 of the Parisian metro which is the 5th busiest line in the world with the famous MF77 equipment (Equipment on iron 1977 which makes Châtillon Montrouge until at Asnières Gennevilliers les Courtilles and Saint Denis Université Passing through the biggest corners of Paris such as Champs-Elysées, Gare Montparnasse, Gare Saint Lazare and Les Invalides. At 24.3 km (15.1 mi) in length, counting both of its northern branches, it is the longest line of the Métro. In 2004, it carried over 114 million riders, about 540,000 per weekday.[1] Annual traffic grew by about ten million passengers after the opening of two new stations on the Asnières branch on 14 June 2008. According to data from December 2009, there are 610,050 riders per day.[2]

Line 13's use of two northern branches serving highly populated areas, its long length, extension into the suburbs, and rapid development of areas that it serves have culminated in the line's overloading, further highlighted by associations representing passengers. It is the most crowded line in the system, especially the section closest to Saint-Lazare.