Hi I recently received a fine from being over the yellow box junction outside the bus garage in Peckham and as you said its a trap as its impossible to make a judgment if the traffic stops suddenly due to the traffic lights, I was driving behind a tall lorry could not see what was going on ahead. It's very easy money for them and should be against the law in my opinion to set this kind of trap. I appealed and it got rejected by them, well they would reject it wouldn't they, it's easy money for them so what is the incentive for them to dismiss the fine? Anyway I have just sent off the appeal of the rejection which means it goes to the courts. One of the reasons I put was and this was something I found by googling yellow box junction Peckham bus garage, that yellow box junctions must be at a junction of two roads and that is not a proper road it's an entrance to a bus garage. The downside of taking it further however is that if tfl do decide to fight it and I lose I won't be able to pay half the amount. It's a gamble but I think something needs to be done about it, it is purly done for making money and no other reason that is obvious. If they didn't want any car to block the entrance then they would simply redesign the road. Good luck with your appeal my advice is to do as much research as possible.