Safety is the issue...
I am concerned about having a huge structure on one of the busiest roundabouts in the area.
Visibility is of the utmost importance and any distractions should be avoided. I do not disagree with the fact that advertising Westwood Ho! is a good idea, but I think placing the advert in one of the nearby fields (either side of Heywood Road roundabout has suitable sites) would be far more advantageous as well as much safer.