The Route nationale 31 is a motorway in northern France. It connects the town of Rouen to Reims, it is also the European Route 46.
The road starts in the City of Rouen, the road starts heading east. The road heads through the Forêt de Lyons passing the Hêtre de la Bunodière. The road then passes the town of Gournay-en-Bray. The road crosses the Pays de Bray then by-pass the town of Beauvais. The old N 31 (now D 931) skirts the Forêt du Parc Saint-Quentin before entering Beauvais. In the town it crosses the N 1 (now numbered the D 1001). To the east of the town is a junction (15) with the A16 autoroute.
To the east of Beauvais the N 31 has been upgraded to a dual-carriageway. The original route is now numbered the D 931. At Clermont the road has a junction with the N 16 (now numbered the D 1016 and D 916). After Catenay, the N 31 is single carriageway again. After 15 km the road crosses the N 17 (now numbered the D 1017) and then has a junction (10) with the A1 autoroute. the road then enters the town of Compiègne. The road leaves the town to the north east through the Forêt de Compiègne along the banks of the river Aisne. At Soissons the road crosses the N 2.
The road continues to follow the Aisne and then the river Vesle to the south east. It passes through the town of Fismes. The road enters the town of Reims at junction (22) of the A4 autoroute.
The road originally continued further east merged with the N 44 (now D 944) and after 5 km splitting to the east. The road is now numbered the D 931. It passes through Suippes where it once met the N 77 (now D 977). Much of the surrounding countryside is reserved for military purposes. The road finally ends in Valmy, west of Sainte-Menehould joining the N 3.
The Route nationale 14, N14, is a trunk road (nationale) in France between Paris and Rouen, running through Pontoise, Magny-en-Vexin, Saint-Clair-sur-Epte and Fleury-sur-Andelle. Until the 1950s, it was going until Le Havre through Yvetot.
The N 15 was a trunk road in France.
The Route nationale 2 is a route nationale in northern France.
The Route nationale 3 is a trunk road (nationale) in France connecting Paris to the frontier of Germany.
The Route nationale 1 is a trunk road (nationale) in France between Paris and Calais. It is approximately 339 km (211 mi) long.
The Route nationale 4 is a trunk road (nationale) in France between Paris and the frontier with Germany.
Route nationale 10, or RN 10, is a trunk in France between Paris and the border with Spain via Bordeaux.
The Route nationale 11, or RN11, is a trunk road (nationale) in Southwest France between Poitiers and La Rochelle. It is part of European route E611.
The Route nationale 16, or RN16, is a trunk road (nationale) in France crossing Picardy north of Paris.
The Route nationale 17, or RN17, is a trunk road (nationale) in France connecting Paris to the border with Belgium.
The Route nationale 19 (N19) is a trunk road (nationale) in north east France. The road forms part of European route E54.
The Route nationale 20 (N20) is a trunk road (nationale) between Paris and the frontier with Spain heading south through the heart of France and passing through the Cathedral City of Orléans and Toulouse. The road forks at Col de Puymorens with one branch being the Route nationale 22 which leads to Andorra. In winter, avalanches sometimes close the road.
The Route nationale 21 (N21) is a trunk road (nationale) in south west France.
The Route nationale 23 (N23) is a trunk road (nationale) in western France.
The Route nationale 24 is a highway in western France. It connects the city of Rennes with the Atlantic port of Lorient. The road is approximately 149 km long.
The Route nationale 27 is a highway in Normandy, north west France. It connects the city of Rouen to the port of Dieppe.
The Route nationale 28 is a trunk road in Normandy and Picardy in northwest France. It connects the city of Rouen to the port of Dunkerque. Most of the route has been superseded by the A28 autoroute.
The Route nationale 29 is a highway in Normandy and Picardy, north west France. It connects the city port of Le Havre with Amiens, Saint-Quentin and the Belgian frontier. Most of the route has been superseded by the A29 autoroute.
The Route nationale 30 is a highway in Picardy and Nord-Pas-de-Calais, northern France. It connects the town of Bapaume to with Valenciennes.
The grand contournement de Paris is the fourth ring road around Paris, enclosing the three other ring roads.