Please don't go down that silly American path of worshipping flags. It's not real patriotism. It's just attention seeking.And the flags are probably made in China anyway.
These can be faked. A group of work colleagues and I were being teased and decided in advance to all answer all the questions as if we were a well known personality of the time. The tester was stunned that we wee all so alike.
As soon as I read "four-wheel-drive enthusiasts" I knew this was going to be just another ill-informed, selfish, bogan whinge.
Zero sympathy.
Speed limits save lives.
The are standards for the signage, but with people demanding that governments cut costs, and almost all roadwork outsourced to he cheapest tenderers, this is what you will get.
During a relatively short time I worked for VicRoads, Victoria's road authority, two road workers I knew were killed by speeding drivers. I don't enjoy that memory. Please follow the rules.
Even in situations like that drivers on what you claim is the non-affected side of he road change their behaviour to look at the roadworks on the other side. The signs are valid. Just slow down! It really won't hurt you.