I actually go on the cycle path that runs on the A38 as i work at toyota
So i avoid the roundabout completely as i enter the factory via the gate about 400 yards? past the slip road onto the A38 coming over the roundabout .It is hard to show on the map and thats why you will see if you look closely the route is not on the road and crosses the slip roads.
And that parallel raod on the A38? thats our own road that goes onto the roundabout .........
Aha, that explains it! Good mapping site by the way- I tried plotting my commute though, it wouldn't let me as it doesn't recognise farm tracks and old railway lines- it kept bunging my route onto the nearest road- maybe I'm doing something wrong.
This probably won't work, but I'll try to put my commute from Google Earth over about 4 pictures on this post.