The A3 Autoroute is a French autoroute located entirely within the départment of
Seine-Saint-Denis
() is a department of France located in the Grand Paris metropolis in the region. In French, it is often referred to colloquially as ' or ' ("ninety-three" or "nine three"), after its official administrative number, 93. Its prefecture is Bobig ...
, serving
Montreuil-sous-Bois
Montreuil (), sometimes unofficially referred to as Montreuil-sous-Bois (), is a commune in the eastern suburbs of Paris, France. It is located from the centre of Paris in Seine-Saint-Denis. With a population of 109,914 as of 2018, Montreuil is ...
,
Rosny-sous-Bois
Rosny-sous-Bois () is a commune in the eastern suburbs of Paris, France. It is located from the centre of Paris.
It is the seat of the national centre of road information of the national gendarmerie.
Population
Heraldry
Transport
Rosny ...
, and Bondy. Its southern terminus is an interchange with the Boulevard Périphérique at the Porte de Bagnolet, and its northern terminus is an interchange with the A1 near Le Bourget Airport. The A3 is 15 km long, and forms a part of
European Route E15
The European route E15 is part of the United Nations international E-road network. It is a north-south "reference road", running from Inverness, Scotland south through England and France to Algeciras, Spain.concurrency with the A86. The first section of the roadway opened in 1969 between the Porte de Bagnolet and Bondy. Following the closure of the A186, one spur route branches off from the A3 - the A103 Autoroute.
The A186 Autoroute was originally planned to connect the A3 with the A86 - however this spur was never completed. It closed in May 2019, and will be converted into an extension of
Île-de-France tramway Line 1
Île-de-France tramway Line 1 (usually called simply T1) is part of the modern tram network of the Île-de-France region of France. Line T1 connects Noisy-le-Sec station and Asnières-sur-Seine with a suburban alignment running in parallel to ...