I don't know if this is a national development, but locally something has changed. In the past, when there were horrendous roadworks, liable to make your life a misery, or somewhere closed due to, I don't know, building a supermarket in the middle of a village crossroads, there used to be signs, signs that might apologise for any inconvenience caused or signs that might divert you around the problem. Ok, so diversions can be a mixed blessing - by the time you get to a distant junction, you might well be faced by a handful of through-the-window shapes and have forgotten which one you should be following - but at least you felt that Powers somewhere were making an effort.
Now? Far too late to be of any use whatsoever you are informed that there will be 'long delays' and that you should 'find an alternative route'.