Smart Motorway-style A-road gantry sign
A gantry structure spanning the road with electronic signals, green signs indicating an exit and the following text.
Exit destinations: London, Tilbury A13 [Hollow square diversion symbol]; Thurrock, Lakeside Services; Non-motorway traffic.
Forward destinations: (M11, M1) Stansted [Airport symbol]; M25 [Motorway symbol] .
Junction number: 30.
Exit here for one of the better roads in to Central London - the dual carriageway from this junction will get you, with very little fuss, almost all the way to Tower Bridge. Or stay on for the start of the anticlockwise M25.