Motorway gantry sign
A gantry spanning the motorway with blue overhead signs indicating one lane exiting and two continuing ahead, and the following text.
Left lane destinations: M49 ; The SOUTH WEST; Avonmouth.
Right-hand two lanes destinations: M4 ; London, Bristol; The MIDLANDS.
Junction number: 22.
Junction 22 is upon us the moment we touch dry land, and our left lane departs for the M49 southwards.