To be fair I can’t remember how much better they might be in other countries, but for a country as anally retentive as this when it comes to road signs, I never cease to be amazed at how indescribably shit road signage for closed roads is in the UK.
Apart from the fact that signs are often left in place long after the works have finished and the affected road has reopened, the lack of clarity is staggering. There is basically no distinction or indication of which ‘road ahead’ might be closed. Is it the road you’re travelling on? Or the next turn off road to your left? Or even to your right? Your guess is as good as anyone else’s.
On the South Circular between Brixton Hill and Clapham South there is right now a closed road ahead signed at the mini one way system by the Kings Avenue junction, complete with an additional ‘diversion’ sign that totally suggests the A205 is closed and users should turn around the one way system to bypass it. Not only it related to a fucking side street, the work was completed several days ago.
Even if you have interpreted a closed road sign correctly, the diversion signs are for the most part thoroughly unreliable, and more so if your route crisscrosses with another diversion route, which in London is extremely common. At least in the US diversion signs are given individual identifier numbers, or at least did when we did a driving holiday a couple of decades ago.
Anyone not driving a very large vehicle would be foolish to follow the official diversion route anyway, seeing as whoever draws up the route will send you on a laughably long journey that anyone on a car could ignore in favour of a perfectly compliant alternative about a third of the official proposal.
Closed Road Ahead signs: fucking shit. At the very least, add an arrow indicating if the closed road in question is a side street rather than the road people are travelling on, as it is the case for the most part, ffs