Smart Motorway gantry sign
A gantry structure spanning the motorway with electronic signals, blue signs showing the left lane exiting and three others continuing ahead, and the following text.
Exit destinations: A34 [Solid diamond diversion symbol] [Hollow circle diversion symbol] [Solid triangle diversion symbol] ; Birmingham (N).
Forward destinations: The SOUTH, London (M1 & M40); Birmingham (E & C), N.E.C. [Railway station symbol] [Airport symbol] M6 .
Junction number: 7.
The sliproads at Great Barr Interchange are all folded up to try and keep it separate from the M5 just to the west, leading to a strange roundabout with entrances and exits on the inside.