It's a single line not a network - everything would have to be trucked over to freight points along the railway - and only high value stuff such a s lobsters are sent by air freight - you can't ship wheat that way - well you can but you don't make any money
Yes I get that. But with the line in place, it would be possible to create several side branches that fed into this.
Appreciate that most products would go by sea. But there are foodstuffs other than lobster that could fly.
Anyway, leave the freight issue alone. It does require other infrastructure.
However we have seen major hubs work in many places around the world for many years. There has been a relatively recent shift to P2P flying with smaller twins rater than B747/A380.
suspect the world has changed - there will be fewer travellers, and they will be more prone sensitive. Perhaps this is the time for a hub in northern Australia.
Lots of great infrastructure around the world was built during times of economic difficulty.