There's currently some rather bad signs (IMO) at road works in Leeds near city centre/St James's hospital on A64. A big massive round blue arrow points you right while obscuring advance warning of give way. Then when you reach the point you're supposed to give way at, there's two big massive lit up all singing and dancing 20mph speed limit signs, one of these in front of the give way sign obscuring it. There's no temporary markings on the road surface. So the advance warning sign is obscured unless your really looking for it, and the give way sign itself is difficult to see until you've gone past the point at which your supposed to have given way. Got caught out carrying straight on and an irate boy racer in an MG beeping his horn at me cause he couldn't continue at 40mph. Only saw the give way signs when I went round for a second look to look carefully and see where I could have gone wrong.

So, should the people putting the signs up be doing better, or should I be more careful to continuously look for signs that may be obscured? I'm guessing a combination of the two but more of the latter. At least it's taught me a lesson to look more carefully through roadworks, and there was no accident. I'm starting to hate driving now

Both, particularly since you've already said that you know there are roadworks, those 20mph limit signs are a visual distaction which would impare your ability to see an unlit object beside them, never mind behind them, and there was surely some sort of visual clue that there was another road ahead that you were about to join.

Also IME it's rare for roadworks to change priority at a junction unless that is the function of the works.