(07 Nov 2013, 7:51 pm)mattdw92 wrote Saying that Adam, I cam across your picture of 4934 you recently updated. Which doesn't look like its taken from the public walkways, more like the middle island...

While I admit the middle island of Park Lane Interchange is more unsafe than the walkways for public use in Park Lane Interchange, I believe I'm right in suggesting that most people have used locations at all bus stations that they're not meant to.
I look at photos on Flickr under the search of 'Park Lane Interchange, Sunderland' and I see photographs from some of the more highly respected enthusiasts who have been taking photographs from years - some even being on said middle island.

I may be wrong in suggesting this, but I've always thought the only place you were allowed to take photographs at was the 'entrance' to Park Lane - next to Stockton Road? Also at Cowan Terrace if you want to be picky, but that's not really inside of the bus station.
Plenty of photographs online which aren't at either of those locations (many of which are indeed from myself, so I'm not throwing digs at anyone).