jim8flog
Journeyman Pro
The only bit of the 303 I'm aware of that's being dualled is a 3 mile stretch near Sparkford. That's miles from Stonehenge. Every little helps, of course, but doing something at Stonehenge is the most urgent thing needed on the 303.
The hold ups on that section* are every bit as bad as Stonehenge, same as every section where dual carriageway ends such West and East bound sections of the A303 North of Salisbury.
*I once spent nearly an hour on the section of dual carriageway leading to that section got to the roundabout at Podimore turned round and went home.