The A823(M) is a tiny spur from the M90, just north of the Forth Road Bridge, that connects South Dunfermline to the river crossing and the motorway network.
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.
A first step towards emissions-based road pricing, a pointless measure to enforce something that's happening anyway, or another leap forward in traffic planning from the people who created the Congestion Charge? It's hard to say.