Motorway roundabout sign
A blue sign with a diagram showing a roundabout at a three-level stacked roundabout interchange and the following text.
Left turn destinations: (M20), Dartford; Stansted [Airport symbol] (M11); Potters Bar; M25 [Hollow triangle diversion symbol].
Right turn destinations: Heathrow [Airport symbol]; Watford (M1); M25.
Change Route: M25 Dartford or M25 Watford
Expect queues at almost all times of day when approaching this huge signalised roundabout. It has two more exits not shown here - one at bottom left towards the services and South Mimms village, and another at top left for the A1081 to Barnet.