Smart Motorway gantry sign
A gantry structure spanning the motorway with electronic signals, blue signs showing an exit and the following text.
Exit destinations: A5 Aylesbury (A505); Dunstable (N) .
Forward destinations: London, Luton, Dunstable (N) M1.
Junction number: 11A.
Junction 11A is new, linking to a northern bypass of Dunstable and leaving room for a future northern bypass of Luton too. In the meantime it has spawned a whole new district of vast distribution warehouses which now fill the skyline for the next couple of miles.