Motorway gantry sign
A gantry spanning the motorway with blue overhead signs showing the following text.
Forward destinations: The SOUTH WEST; Weston - super - Mare M5 .
Exit destinations: A4 Avonmouth [Solid diamond diversion symbol] [Hollow circle diversion symbol]; Bristol (W) & Airport [Airport symbol] .
Junction number: 18.
Change Route: A4 Avonmouth
The vast interchange complex at Avonmouth opens up from this sliproad, delivering you to two different points on the A4 at Avonmouth itself, or on to the M49, which from this direction requires a u-turn. The whole thing is in the Simulator if you’d like to exit here and get lost.