A gantry spanning the motorway with blue overhead signs showing the following text.
Forward destinations: London, Huntingdon A1(M).
Exit destinations: A15 Yaxley, Stilton (B1043); Ramsey (B660).
Junction number: 16.
The old A1 followed the course of a Roman Road in this area, which is why a lot of this motorway is not just wide but also ruler-straight. In some ways it feels quite unlike a typical UK motorway.