Sherwood, it seem the same throughout the area on any road with mature trees. All the lights seem to have been cosied up with trees and their canopies.
I realise that on roads such as Church Rise, with the number of trees there will always been some areas obscured, but the level at the moment is stupid.
Also on some roads where trees have been removed and all that remains is a poor attempt at patching the pavement, resulting in a mushy combo of earth and tarmac, they are a serious hazard, especially the ones in complete darkness.

It seems the smaller roads with few trees are a complete success, the larger roads, not such.

Alice, I would say the flatter part of Sunderland is not too bad at the Waldram end, but as the lights swap sides, suddenly darkness falls. Glad you are happy with it though