LGV Interconnexion Est

• west branch: towards Paris and western France, terminating at Valenton at the Grande Ceinture line, which connects to the LGV Atlantique at Massy TGV
• north branch: towards northern France, London and Brussels, joining the LGV Nord at Vémars
• south branch: towards southeastern France, joining the LGV Sud-Est at Moisenay

The south and west branches are now shared with the LGV Sud-Est line.

Maximum line-speed throughout is 300 km/h (186 mph).

Route

Starting from the south (LGV Sud-Est), the line begins at Coubert junction and heads northeast. Near Tournan, there is a link to the Paris-Coulommiers line. Further north, Marne-la-Vallée – Chessy TGV station (transfer to the RER A) serves the new town of Marne-la-Vallée and Disneyland Paris theme parks. Near Claye-Souilly, two links under construction will join the line to the LGV Est. The route next serves Aéroport Charles de Gaulle 2 TGV station (transfer to the RER B and air transport). Shortly thereafter, the line joins the LGV Nord at Vémars junction.