Francilienne

The Francilienne (pronounced [fʁɑ̃siljɛn]) is a partially completed ring road in Île-de-France (the région that includes Paris), France, lying outside the A86.

The planned ring road[clarification needed] is approximately 50 km (31 mi) in diameter, similar in size to London's M25 motorway.

[2] The southeastern portion of the Francilienne, the N104 between the A4 and A6, is severely congested and carries a high percentage of heavy goods vehicle (HGV) traffic.

The Francilienne is the third Paris ring road, outside the A86 super-périphérique, which in turn is outside the Parisian Boulevard Périphérique.

Outside the Francilienne itself is the very large, 1100 km-long, and incomplete Grand Contournement outer ring, the southeastern portion of which had yet to be constructed as of 2019.

A map showing the three main ring roads of Paris: Boulevard Périphérique (orange), Autoroute 86 (purple), and the Francilienne (indigo and turquoise)
Partially completed Grand contournement outer ring (blue) and three inner ring roads: the Francilienne (green), the A86 (dark blue) and Périphérique (innermost, orange)