The A84 autoroute is a major motorway in western France completed on 27 January 2003 to connect the cities of Rennes in Brittany with Caen in Lower Normandy. It is part of the Autoroute des Estuaires from Belgium to Spain, avoiding Paris.
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.
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.