Have a look at G oogle Maps at S31.042855, E150.279374
There are many roads setout like this in Australia. I have operated a number of times from this particular one during floods.
Some of the major highways in Western Australia are set up for RFDS and/or Police Kingair and PC12 operations with the road widened with turning nodes every few kilometers and the white side posts set wider than the aircraft wingspan.
CC