In Belgium, the motorways (Dutch: autosnelwegen; French: autoroutes; German: Autobahnen) are indicated by an A and an E (for European) number.
Roads that are (part of) a ring road around a town or city are mostly indicated by an R number.
[2] Since 1989, all highways are built and maintained by the governments of the three regions (Flanders, Wallonia and Brussels).
[3] For safety on motorways in Belgium, This first list concerns the motorways that start from the ring of Brussels to other cities and are clockwise: A1 towards the north, A2 towards the north-east, A3 towards the east, etc.
Prefixed by the letter B from the French word "bretelle".