I noticed this stupid restriction a little while ago. It is complete nonsense, get rid of the speed restrictions on that road, they aren't needed.
The roundabouts have had foliage and the such plonked on them to make it more difficult to see and anticipate what is happening.
But those slip roads, especially the one to the north, I am not surprised at the large cluster of accidents there. Those have to be some of the most dangerous slip roads anywhere. When you're going to merge with the main road you simply can't see what is coming until the point at which you have to be travelling at the same speed as it.
There are at least two speed cameras in this new restriction, aren't there? I didn't look to see how far it extended. If it goes all the way back to County Gates then there's another along there. Although I think that single carriageway is still subject to the 50mph speed restriction.
The roundabouts are both at very odd angles aren't they? I mean, at least one of them is, its like it has been built on a hill. Very strange.
Looking at the stats map, to the west the speed camera is a bit further to the west of the fatal, on the straight isn't it? The rest of the accidents are due to the queue at peak times. Traffic lights on the roundabout will be helping solve that problem, of course...

Are these are the accidents used to justify the speed camera on the westbound carriageway between St Paul's Road and the A347? If so it isn't near any of them, except that one "slight". But it is on the straightest part of the road again... If those are the stats for the camera they must have used westbound accidents to justify an eastbound speed camera?!