Ok Incandescent maybe draft something for the OP and let's see if between us we can come up with something arguable.
Sorry, I've only just picked this up, and wonder to myself how I could have missed it. Even if these were "No Entry" signs that suddenly switch on, the argument is the same. A motorist can come that way many times in the non-restricted hours and only see a 40 mph sign. Then suddenly, he comes along at night or whenever the sign changes from a 40 mph to a Flying Motorbike sign, and is confronted with the sign barring his entry. What I'm saying is based on OP photographs because latest GSV is June 2021. Apparently the main signs on the roundabout show nothing. The council clearly realise they have done a boo-boo, because they have put up small yellow background non-traffic signs to give some sort of warning, but these are wholly unsatisfactory being difficult to read from a moving car, and also unilluminated. Yes a motorist must always react to signs, but this is is just grotesque in my opinion. What happens if the sign happens to switch just as you start to enter the road ? I'll bet they issue a PCN just the same. If the main roundabout signs have the restriction on them, I'd be a lot happier but unfortunately we can only see the 2021 signs on GSV.
I see the traffic order is to stop boy-racing along what must be the only straight stretch of road in this part of London ! Further down, the Docklands Light Railway goes down the centre reservation.
