It goes without saying Adelaide, Melbourne and some of Sydney need to get electrification rolling oout especially Melbourne to regional centres already taking a large number of rail passenger services.
It feels like we in Australia are years behind the rest of the world when it comes to reducing emissions for transport.
Victoria especially so when you remember the announcement last week on renewable energy and the same for Adelaide.
Adelaide has very green power and yet only a small amount of the network is electrified.
Why rail electrification is key to keeping the UK’s climate progress on track
Gets down to traffic density and a few other inputs. In general a single line with 1h frequency or less is usually not worthy of sparking unless its just easier with fleet management, Lithgow in NSW and Rosewood in Qld for example.
Meanwhile Adelaide's progress is rated limited by DMU fleet age, spark when it time to replace them and not before unless for example sparking once section allows increased frequency on both that using new EMU's and diverting the DMU's to the remaining non-sparked lines.
Melbourne, yeah well I don't understand how the Geelong line got this far no-overhead and likewise the Eastern line, but hey its Vic, they always do things differently.
Then there is the complexity of Double stacking corridors etc, something the UK doesn't have to deal with.