Thanks - nice picture, but it puzzles me a bit.
I can't remember the traffic lights there, only the old roundabout until it was removed and the new lights installed. Note that one if the heads on the traffic lights is pointing towards the top of Grange Road, so it must have been two-way at the time.
I remember it when they were using flourescent tubes in the street lights - here and down Grange Road. In the centre of the roundabout the tube was vertical on top of the pole. If someone had been killed on the roads of the Borough, a red light was used insted.
The road surface looks fairly new in this shot, compared to the pictures in the fire station topic. The bus is probably a Guy with Massey bodywork. The schoolgirl on the right looks to be wearing a Christchurch Claughton (Borough Rd) blazer.
So I wonder when the roundabout was built?