The ring road is complete with the exception of a 10 km segment (1/8 of ring). A tunnel is built to complete the loop with the opening planned for October 2007.
A86 is a part of the four ring road system surrounding Paris and Ile de France This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...
Peripherique, completed in 1973, roughly an ellipse 9 x 11 km
A86, the last segment (tunnel) to complete in 2007, irregular, 20 x 25 km (12x16 miles), similar in size with LondonNorth Circular and South Circular)
the Francilienne, a partial ring, circa 50 km (30 miles) in diameter, comparable with London M25 motorway
grand detournement de Paris (only a few segments are opened)