Motorway fork sign
A blue sign with a diagram showing a branch off the road ahead and the following text.
Forward destinations: The MIDLANDS; London; Chepstow [Hollow triangle diversion symbol].
Exit destinations: Bristol (W); Cribbs; Causeway ; A4018; [Solid triangle diversion symbol].
Junction number: 17.
Just off this junction - through a maze of office developments and retail parks - is the site of Filton Airfield, where Concorde was developed. It’s now closed to air traffic and is being redeveloped.