Which road and what area?
Is it the A12 southbound by the BP garage just before Witham, not sure really as im usually sitting a lot higher when im driving, looks kinda scary being that low to the road!
nope, further west!!
A406 ? or A40 heading towards Uxbridge…Does Löök like the A12 though 
nope, further north!!! (tho’ not IN the north)!!
clue, I’m in the southbound direction, coming up to a roundabout.
A1 south, coming up to the roundabout with the A421 just south of St Neots?
jdc:
A1 south, coming up to the roundabout with the A421 just south of St Neots?
spot on!