We need rapid rail and outer urban CBDs in satellite cities.

There's not practical reason why this shouldn't happen given CBD landlords are pricing themselves out of the real estate marketplace.

And there a strong case for (a) new city (cities) to be built from the ground up between Melbourne and Sydney. And north of Brisbane.

The new VTL trains do not need overhead wires but use magnetic interface systems buried just below ground.

No reason why trolley buses could use the same on various routes always providing they batteries with enough storage capacity to move between powered routes as required by demand?

Powered walkways and escalators would move pedestrian traffic in dense areas more rapidly. Motorbikes, scooters etc? Yes, but electric.
Alan B.

Fears for buckling of housing in Queensland because of the mania for more people, particularly those subsidising the university industry. 40,000 due to move in this year: 16,000 into purpose built student accommodation, the rest to compete in the private rental market.

There won't be room for transport to move through the increasing, and completely unnecessary, hordes of people.

I feel something is out of balance firing up a car engine just to get a loaf of bread. I'd ride a pushbike if there were places to cross under or over busy roads but planners don't seem to have thought of that. I suspect self driving cars won't catch on and less so quadcopter style air taxis after one or two have crashed and burned.

That leaves urban sprawl into Australia's last remaining areas of good soil and rainfall. Near me is a subdivision sign next to a growing wheat crop that is cleaning the air, creating healthy food and is relaxing to the eye. Soon to be covered in concrete with twice daily bus services to the doctors, pokie machines etc. Progress is a wonderful thing.

Australia has only one way to expand, into the interior ! Start by making education smarter & by introducing a National Service. With the improved mentality of the new generations & generation-long projects such as flooding Lake Eyre will improve everything here !
Make the quick buck mentality which after all, led to the present housing disaster & remuneration inequality to be unfashionable !
We simply can not get away from the fact that just about everything here is a mentality issue !
Want to make things better, start thinking !

It might help if people didn't expect McMansions for their first home. My first home was an ex farm workers 4 room cottage, including the laundry/bathroom. It wasn't much, didn't cost much, & was perfect for a just married couple, with out too much cleaning & gardening to interfere with more important activities.

Most young folk today want the full 4 bed, 2 bath mansion as a minimum, then find their life style greatly restricted paying for the thing.