Editing Flying junction (section)

==High-speed rail==
Nearly all junctions with [[high-speed rail]]ways are grade-separated. On the French [[Lignes à Grande Vitesse]] ([[TGV#Tracks|TGV]]) high-speed network, the principal junction on the [[LGV Sud-Est]], at Pasilly where the line to Dijon diverges, and on the [[LGV Atlantique]] at Courtalain where the line to Le Mans diverges, are fully grade-separated with special high-speed switches (''points'' in British terminology) that permit the normal line speed of {{convert|300|km/h|mph|0|abbr=on}} on the main line, and a diverging speed of {{convert|220|km/h|mph|0|abbr=on}}.<ref group=note>See "[[:fr:Courtalain|Courtalain]]" on the French language Wikipedia.</ref> 

The LGV network has four grade-separated high-speed triangles: Fretin (near Lille), Coubert (southeast Paris), Claye-Souilly (northeast Paris) and Angles (Avignon).  A fifth, Vémars (northeast Paris), is grade-separated except for a single-track link on the least-used side, linking [[Paris Gare du Nord]] and [[Charles de Gaulle Airport|Paris CDG]] airport.