A blue sign with a diagram showing a branch off the road ahead and the following text.
Forward destinations: The NORTH; Peterboro'.
Exit destinations: ; Stevenage; A602 [Solid triangle diversion symbol].
Junction number: 7.
The New Town of Stevenage is to the east here. Its planners originally wanted it to span the A1 - half the town each side, which would have balanced the traffic on its two motorway interchanges - but in the end it all ended up on the same side.