A road

A roads may be
 * motorways or freeways, usually where the local word for motorway begins with A (for example, Autobahn in German; Autostrada in Italian).
 * main roads or highways, in a system where roads are graded A, B and sometimes lower categories
 * roads in a particular area or zone designated A

List of A roads
This is a list of road numbering systems which include A roads.