Flinders Street is in need of urgent repairs and very large numbers of dollars. Even those who pass through it occasionally comment upon how run down (derelict is a word sometimes used) it appears. Those for whom it is a workplace and can see "behind the scenes" are all too keenly aware of the fact that if nothing is done very quickly the entire structure may be compromised to the point where it is beyond saving in its present form.
Noises coming from Spring Street need to be accompanied by action very swiftly and decisively and not in the form of a paint brush. More like in the form of major structural repairs from the top down and a complete refit to make it fit for purpose and the number of passengers PTV and Metro are suggesting it may need to handle within five years.
It isn't possible to tunnel beneath the station due to the already-mentioned water course beneath Elizabeth Street so the existing subways are all that can be provided. But additional routes to and from the platforms above track level are perfectly possible.
In my opinion a trick has also been missed in failing to restore platform 11 and replacing it with the Flinders Landing wine bars. When PTV and Metro are bleating about a lack of platform capacity why do they then remove the option to re-create another through route?
Tack configuration can also be tackled to advantage to address the low approach and departure speeds which would also save significant, if modest, amounts of time but would increase capacity by perhaps another 5 trains per peak hour on the busiest tracks.