We often get people who are lost up here. Because the road clearly splits at our driveway with the left side going up to the half a dozen properties past us. Thus we have the sign pointing to the three addresses accessible by the right fork, aka our driveway.

But many people are illiterate. At least once a week we get some poor sod lost up here and they come almost all the way down our driveway.
I say almost because they inevitably try to turn around just before the gravel RV pad. That is not a safe spot to turnabout. There is a large drain just off the driveway that is surround by some old concrete footings. More than one car has ripped up its underside as a result.
So the easy answer was another sign or two. My favorite site for outdoor signs is BuildASign.com so I popped over to the site and drafted up something. Soon enough two signs arrived. We attached on to the house yard gate and the other, thanks to a spare length of pipe and an old race car wheel, we created a standing and moveable sign to place just off the driveway.
Of course some people are still REALLY dump and insist on turning about where the second sign is: but not our problem if they damage their vehicles.
The free-standing sign did take a bit of hit this past winter though. A giant, and I mean GIANT, limb fell from the big gum tree at out near the house yard gate. It came within inches of landing on the big trailer. Unfortunately it landed atop the mobile sign. Once we managed to chain saw up the fallen limb and load the bits into Dumpy for “storage” out at the giant wood pile, we tidied up the wee sign as best we could, but it now has a certain jaunty look.