Motorway sliproad roundabout sign
A blue sign with a diagram showing a roundabout with an exit only to the left, and the following text.
Left turn destinations: Avonmouth; M49 (M5) [Hollow square diversion symbol].
Pilning Interchange doesn’t give you many options - there’s a left turn for the M49, or you can do laps of the roundabout. We’ll take the M49.