Two numbers, one road. The main road south from Glasgow, and indeed most of Scotland thanks to its connections with the M73 and A702, is having something of an identity crisis.
The wait is over! The full map of the Ringways, London’s unbuilt urban motorway network, is now online. Not even the system's planners had anything like this.
The tale of how British traffic signing developed between the Second World War and the mid-1960s, bringing us from a system designed at the turn of the century to the signs we still use today.