Smart Motorway gantry sign
A gantry structure spanning the road with electronic signals, green signs showing a "tiger tail lane drop" where the left lane exits, the right hand lane continues ahead, and the middle lane can go in either direction, and the following text.
Exit destinations: London (E), Stansted [Airport symbol] (M11); Felixstowe, Cambridge; A14 [Hollow diamond diversion symbol] [Hollow triangle diversion symbol] [Solid circle diversion symbol] [Solid cross diversion symbol].
Forward destinations: London (C & W); A1 [Hollow circle diversion symbol] [Solid square diversion symbol].
The third lane leaves us here, bound for the shiny new A14 towards Cambridge. Ahead lies a dramatic drop in the standard of the road: the three-lane state of the art Smart A-road is about to become a 1950s dual carriageway through a town.