Or, consider that this sign and its opposite "road work in progress" indicate almost the same condition. In the states of CA & NV I see work in progress about 10% of the time, but even then I have to slow down and look around. I see: Four-five men in suits standing around talking while ONE (1) person in work cloths does the work.
Where no people are around, the fines are still doubled. Why? How is that fair? Why should I pay a double fine just because someone put up a sign warning of "road work" which is not happening? Because the majority gave their power away, creating a predatory gang that preys on them, and now they don't have the will to take it back.