Many western roads don't have places where you can pull off if you get in trouble, and the edges become very soft very quickly.
You have limited room to pass or overtake safely in the wet, and you might actually but those trucks that are carry food and necessities to regional area at risk too. Please don't make them pull off the road.
Creeks and river come up and down very quickly and while there are automatic river recording on the bigger rivers, there is non on the smaller rivers or creeks. This means that if road conditions maps are saying they are open that might not be the case, particularly in channel country as they can come up so quickly.
Walking in walk to check the level is just as dangerous as driving into it.
Poor phone coverage between towns and less general traffic on the roads could mean that you could be waiting for help for a while.
Emergency in the west rely on volunteers for most of there services. Most of these volunteers have day jobs and families. So please think of others before you travel in the wet as you may also be putting someone else's life at risk by doing so.
Dirt roads get cut up, and unfortunately, we all go on a very long waiting list to get them fixed by our local shires. The damage done on a dirt road may seem minimal to you, but for the people travelling that road each and every day the damage done can last a long time to come. And I am not sure what is more dangerous hitting a dried up old wheel rout or a hole full of bull dust.
Ask questions about the roads prior to leaving a town. Check with locals, the local shire pages for updates. If you see at lot of transport trucks parked up in town it is a pretty good sign that the roads are either cut or unsafe.
An remember if it is FLOODED FORGET IT. An extra day staying put will not kill you, but a unnecessary travel on a wet one could.