One consideration with making this map was how some former lines would operate. For example, were the Healesville and Warburton Lines still in existence, would they be run by Metro or V/Line?
This is more of a judgement call on my part than any sort of historical revisionism. In the case of Healesville/Warburton, I decided to make them V/Line-operated. I figure that there would be a small Sprinter or 2-3 carriage train shuttling back and forth between the two termini and Lilydale.
The Mornington and Red Hill Lines would be operated in the same manner as the Stony Point Line; that is with a train hired by Metro from V/Line.
Whittlesea didn’t seem to make much sense to operate separately given its isolation from the network and relatively proximity to Melbourne. Besides, being in the countryside hasn’t stopped the Hurstbridge Line from being operated with suburban trains.
As I said above, these were pure judgement calls on my part. Happy to hear alternative proposals and suggestions. This is a fictional scenario after all.