Its construction began in the 1970s near Paris. The first section between Paris's Porte de Bercy and Joinville-le-Pont opened in 1974 with a single carriageway. A second carriageway was added in 1975, and the following sections between Joinville and Metz were opened in 1975 and 1976. Former autoroutes A32 and A34 were integrated into the A4 in 1982.
From Paris, the autoroute passes the new town of Marne-la-Vallée and Disneyland Paris. It continues on to some of the major cities of France's northeast, including Rheims and Metz, before terminating in Strasbourg. Local roads provide a connection to southern Germany.
Its westernmost part between the Périphérique and the A86 ring road in Paris is reputed to be one of the busiest sections of road in Europe, with 257,000 vehicles a day recorded in 2002.[1]
This article contains a bulleted list or table of intersections which should be presented in a properly formatted junction table. Please consult this guideline for information on how to create one. Please if you can.(December 2021)
E 25 / E 50
A 31
A 32
2 (westbound only)
A 86, Joinville-le-Pont Bordeaux, Nantes, Lyon
N 104
A 104 Lille, Charles de Gaulle
Meaux
A 26 (North) Calais, Brussels, Lille
A 34 Charleroi, Reims Est
, Bifurcation de Mey
, Bifurcation de Lauvallières
, Freyming-Merlebach
N 4)
, Brumath-nord
A 35
de Coutevroult
Boulévard Périphérique through 
51
