1st on the old Rockingham Close, just off Rockingham Street (where Primark now stands):
https://www.google.com/maps/@53.376801,-1.4738505,3a,75y,36.49h,81.31t/data=!3m6!1e1!3m4!1sHcjTTm0wGjZkHVqDGv_KjA!2e0!7i13312!8i6656
2nd, the other end of Rockingham Close (between China Red/the old Plug Box Office, looking at where Primark now stands):
https://www.google.com/maps/@53.3765985,-1.473929,3a,37.5y,29.36h,91.42t/data=!3m7!1e1!3m5!1siBFStLe0xdjt3DKvYbnMPQ!2e0!5s20120601T000000!7i13312!8i6656
I believe the other two are in the same area (the old Rockingham Close/now Primark — the same folding gates in the background of each shot)