Center-Europe-Atlantique route
The Center-Europe-Atlantique (RCEA) route is a road axis that runs through central France in an east-west direction. It connects southern Germany, Switzerland and eastern France with the French Atlantic coast. There is no special signaling with street signs - it has only been defined by an association. The route runs along roads with different numbers. Although the route does not run through built-up areas, it is considered to be accident-prone, as the risk of rear-end collisions increases if you lose attention. It is planned to upgrade all sections of the RCEA to four lanes to increase safety and throughput speed. The motorway sections are subject to tolls.
The northeast section runs from Besançon to Paray-le-Monial :
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Besançon - junction with the A31 -
Junction of the A36 - Beaune motorway triangle
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Motorway triangle Beaune - Chalon-sur-Saône Sud - N 70 Chalon-sur-Saône - Montchanin
- N 80 Montchanin - Paray-le-Monial
The southeast section comes from Lausanne or the Aosta Valley to Paray-le-Monial:
- N 205 Aosta Valley - Mont Blanc Tunnel - Le Fayet
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Le Fayet - Geneva 
(route from Lausanne) - Mâcon
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Mâcon southern bypass - N 79 Mâcon - Paray-le-Monial
The central section runs between Paray-le-Monial and La Souterraine :
- N 79 Paray-le-Monial - Montmarault
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Montmarault - motorway triangle at Bizeneuille -
Bizeneuille - Montluçon
- N 145 Montluçon - La Souterraine
The north-west section runs from La Souterraine to Nantes :
- N 145 La Souterraine - Bellac
- N 147 Bellac - Poitiers
- N 149 Poitiers - Bressuire
- N 249 Bressuire - Nantes
The southwest section runs from La Souterraine to La Rochelle or Royan
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La Souterraine - Limoges
- N 141 Limoges - Angoulême N 10 (to Bordeaux ) - Saintes
- Branch La Rochelle
- Branch Royan
- N 150 Saintes - Royan
