If it's cheap it's good enough ................Now that this project is to go ahead it will be necessary to mine and crush Ayers Rock to provide the necessary aggregate for the concrete tunnel.YM, have dealt with enough shoddy builders, Ayers Rock will be fit for purpose used as aggregate. Someone will be paid enough to ensure that is signed off.
Oops Ayers Rock is sandstone so no good for concrete.
Whilst in the NT, a branch line should be constructed to the Pilbara, allowing iron ore to be rail freighted into Asia. Yia this ever expanding undersea tunnel network.
Shipping lines take notice.