Universal design is a relatively simple concept.
It means that the built environment caters for everybody. This long drop toilet near Wyandra (half way between Charleville and Cunnamulla) is an example.
It's wheelchair accessible. Note the extended ramp built to ADS specifications. From memory, the slope can't exceed one in seven.
It's obviously more expensive, but once built, stays built. After years of hassles trying to provide access to kids in wheelchairs, and an understanding of how much it costs to provide add-ons, universal design is an appealing notion.
The long drop toilet does, however, create a few challenges.
If you were way out here in a wheelchair (not beyond the realm of possibility given the number of grey nomads traveling) you'd probably be grateful.