If you see a Metrolink in the street you don't realise how much detail is on the roof !
Below is the view most of us see, in fact this is more elevated than a street view
But from above there is all sorts of equipment. Its very rare to get a view of the roof, I have spent ages on Google. So I had to put on my "train spotter anorak" and go find a foot bridge.
Armed with a limited number of pictures taken at a distance I have started to add the roof details