A-road fork sign
A green sign with a diagram showing an exit branching off the road ahead and the following text.
Forward destinations: C. London; (West End); N. Circular; (A406 (W)); A41.
Exit destinations: C. London; (The City); N. Circular; (A406 (E)); A1; [Hollow triangle diversion symbol].
Junction name: FIVEWAYS CORNER.
The signs show this as a fork, but it's really quite a complicated signalised junction underneath a flyover. The A41 and A1 part ways here, having shared the road through Mill Hill, and the flyover brings southbound traffic from the M1 which will join us in a moment.