>>1678534Our to biggest cities Sydney, and Melbourne is one of the most popular flight routes connected by land.
Unfortunately a HSR wouldn't be much quicker than flying even if it did happen, since they are a bit too far for HSR to be viable. There is an argument that by connecting some major rural cities like Albury that the growth created by the HSR would be beneficial.
Another idea is to link satellite cities to the main city with HSR. Such as Newcastle, Sydney, Wollongong. Our population is not that big so this is also considered to be unviable.