Looping from the M80 at Low Wood (J4A) to the same road a couple of miles further north at Old Inns (J6), the A8011 is rather a depressing road. It passes through Cumbernauld and under the awful monstrosity that serves as the town centre. It is dualled throughout and all but three junctions are GSJs. A minor road serving the local theatre and the ill-fated Cumbernauld House meets the South-Westerly side of the road, whilst the remaining two are at-grade roundabouts either side of the shopping centre, one serving Tesco and the other Asda.
The original A80/A73 junction was where Old Glasgow Road (had it not been severed) would have met the A8011 and Main Street. From here north to Old Inns junction the A8011 is an online improvement of the original A80, while southward (as far as the curve north of Muirhead Roundabout) the A8011 is an online improvement of the original A73 (south of here the old A73 was destroyed by the construction of the New Town and is now very difficult to follow).