A84 autoroute
Road in France
title: "A84 autoroute" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["autoroutes-in-france"] description: "Road in France" topic_path: "geography/france" source: "https://en.wikipedia.org/wiki/A84_autoroute" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Road in France ::
::data[format=table title="Infobox road"]
| Field | Value |
|---|---|
| country | FRA |
| type | A |
| route | 84 |
| map | Autoroute A84 - plan.png |
| length_km | 170 |
| established | 2003 |
| direction_a | South-West |
| terminus_a | (Rocade de Rennes) in Rennes |
| junction | {{plainlist |
| *{{jct | country |
| direction_b | South |
| terminus_b | (Périphérique Caen) in Caen |
| cities | Caen and Rennes |
| e-road | |
| photo | Entrée A 84 Caen.JPG |
| photo_notes | Start of A84 at the Porte de Bretagne exit of the Périphérique Caen. |
| alternate_name | Autoroute des Estuaires |
| :: |
| country = FRA | type = A | route = 84 | map = Autoroute A84 - plan.png | length_km = 170 | established = 2003 | direction_a = South-West | terminus_a = (Rocade de Rennes) in Rennes | junction = {{plainlist|1=
- in Poilley and Ponts}}
| direction_b = South
| terminus_b = (Périphérique Caen) in Caen
| cities = Caen and Rennes
| e-road =
| photo = Entrée A 84 Caen.JPG | photo_notes = Start of A84 at the Porte de Bretagne exit of the Périphérique Caen. | alternate_name = Autoroute des Estuaires
Characteristics
The motorway, 170 km long, cost a total of € 650 million. It is dual-carriageway both ways on its entire course and service areas are positioned at regular intervals. It is toll free.
The motorway was built with a special road surface to allow rain water to run off quickly, but it is ineffective with snow that often falls in large quantities in winter, so snowploughs are employed regularly. Motorway traffic radio 107.7 broadcasts A84 information specifically.
- 2 × 2 carriageway
- 170 km in length
- Total cost : €650 000 000 (2003)
- 3 speed camera zones
- 5 service areas (Aires de service et repos):
- l'aire du mont Saint-Michel (Total), Saint-Aubin-de-Terregatte
- l'aire de la Baie, Braffais
- l'aire de la vallée de la Vire (Shell), Gouvets
- l'aire de Cahagnes, Cahagnes
- l'aire de Saint-Jean des Essartiers, Saint-Jean-des-Essartiers
The highway is free throughout its entire length. The various governments have studied the concession of this highway, but the regional authorities of Brittany and Normandy have convinced the public authorities to build and manage this highway with public funds.
History
- 1979: Ministerial decision to upgrade the road between Caen and Avranches to dual carriageway.
- 1987: Decision by the CIAT to connect Caen, Rennes and Nantes by motorway ensuring the continuity of the French motorway network.
- 1994: The connections between Caen and Avranches and Avranches and Rennes are declared of public utility.
- 27 January 2003: Opening of the last section of the A84 except the Rennes and Avranches bypasses.
Route
::figure[src="https://upload.wikimedia.org/wikipedia/commons/9/92/Autoroute_A84_-_plan.png" caption="Map of the A84."] ::
List of junctions
References
- (2014-10-13). "RN12 et RN165. Projet autoroutier abandonné". Le Télégramme.
::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::