Peg Leg Roads

The satellite overview of the complete area, then a low level night with stereoscopic cameras to understand the terrain to be serviced.

A study of all the geologic data that was available, along with on ground surveys and any local knowledge at a public forum. This became the start of the road system to open up to year round travel and full commercial opportunities.

The original bull-dozed tracks with grader maintenance, in wet conditions either became creek/river channels or an impassable bog hole. The misconception that a desert can have dirt tracks, stops when a wet season rain reaches south, sometimes to southern capitals, flooding them.

The increasing use of prefabricated concrete beams, panels and posts opened up the possibility of an extension of the manufacturing ability to have a pre-fabricated road-way.
A macadamized road entails a road width trench up to 0-06m deep, with the material to be removed and freighted where ever, then a road base to be freighted in , nearly always by rubber-tyred heavy trucks, then compaction, grading, storm water management and finally the plant set up to make bitumen, which is then freighted to the road base and applied.
This application needs specialized plant to evenly spread and then compact to a smooth level water shedding layer.
An alternative is concrete pins or pegs with a larger base, on solid rock or hard pan, of different lengths, dropped into pattern drilled holes and back filled in. Beams locked on top in a cross grouping, similar to the O-Bahn track, could then support stressed concrete panels as a foundation for a bitumen layer.
A concrete road way with minimal earth work extending on its' way with efficient movement of the supplies, making the road above ground level, at all times leaving the storm water flow as it was naturally.
Fencing out stock and native animals becomes easier when gullies are bridged by much longer pins/posts and become under road access from one side of the road way to the other.

Once stock and native animals are fenced out a speed limit is unnecessary, also a free-way or double separate tracks is very possible. When commercial traffic can travel at a reasonable speed passing is almost absent, so a thinner road is possible,
perhaps with cut-outs. The more extreme the climate variation and the need for expensive maintenance with expensive personnel, the higher initial cost, with better
commercial freighting could put a pre-fabricated system as a very viable alternative,
Railway sleepers are a good example, with vehicle loading in the thousands of tons,admittedly on steel rails and steel wheels.