Editing Road hierarchy (section)

====A-roads====
Primary A-roads are green on maps and signs. A main recommended route, they are usually single carriageway or [[dual carriageway]], but can be single track as in North West [[Sutherland]]. The primary road network is fully connected, meaning you can reach any part from any other without leaving the network.  Some of the major dual carriageway primary routes have numbered junctions or hard shoulders in the style of the [[Continental Europe|Continental]] semi-motorways.  Many primary routes are largely or wholly subject to [[clearway]] restrictions, and in major cities they may be classed as [[red route]]s.  Emergency telephones, if present at all, are usually infrequent – there may be some additional telephones operated by the UK's two main motoring organisations, the [[RAC plc|RAC]] and the [[The Automobile Association|AA]], but these are becoming rarer.

A non-primary A-road often exists where the route is important but there is a nearby primary route (A or motorway) which duplicates this road's function. Shown as red on maps, and has white signage with black lettering.  Some non-primary A-class roads are partially subject to clearway restrictions.