see WWW site "A grand water vision" by Doug Harrison
2000 GL from Fitzroy R (WA) to Adelaide and Menindee Lakes(DarlingR)
other : SE - NW maintainence hwy / tourist road/ DEFENCE road. Gas from NW Shelf.
All current bicycle pathway ideas fail because they are always on the same level as existing roads. So, they have to cross the roads at intersections.
Build, lightweight "Freeways" elevated on poles. Put them along the sides of roads.