Yes, there is a footpath. That's not the problem, folk will have to go in single file if there are many using it. Step off the footpath and you are on the dual carriageway.
I only commented on the traffic when the road was busy, between 1530 and 1800. OK, not a Saturday, but nowhere near the amount of traffic going to or worse coming from a football game.
Unfortunately, the bypass was already built before the decision to go ahead with the stadium was given. Had it been possible to take the stadium into consideration the whole design of the roads would have been different