@Pressman, did they have a choice of rail operators though, or was it GWA or road?Good question, but also bare in mind that G&WA are used by Viterra on the ARTC lines in SA.
IIRC the Geelong to Ballarat is a double track formation so a separate SG track could be added.
Then convert the Maryborough to SG linking to Geelong with trains to Geelong and Melbourne via Corio as needed. The only BG remaining would be the passenger service to Ballarat and Ararat. Apart from providing better linkage, I am not convinced that converting Ararat to Ballarat to SG would be of benefit though it would allow the Overdue to return to its old route via Ballarat. BG/SG DG is limited to 80 km/h so you would avoid using it.
Ballarat then becomes a very important interchange once again with trains coming and going on all 4 lines. The only negative would be SG to Maryborough goodbye line to Castlemaine and return of passenger services?Ballarat already has trains coming and going on all 4 lines. DG is currently slated as Geelong-Ballarat-Maryborough so there's no obstructions to a Geelong-Ballarat-Castlemaine-Bendigo besides the obvious ones (a rubbish cost-benefit ratio and a lack of trains to run the service).
and a lack of bums on seatsBallarat then becomes a very important interchange once again with trains coming and going on all 4 lines. The only negative would be SG to Maryborough goodbye line to Castlemaine and return of passenger services?Ballarat already has trains coming and going on all 4 lines. DG is currently slated as Geelong-Ballarat-Maryborough so there's no obstructions to a Geelong-Ballarat-Castlemaine-Bendigo besides the obvious ones (a rubbish cost-benefit ratio and a lack of trains to run the service).
How will the crossing loops work with dual gauge ?It's not like dual gauge is anything new, Places like Adelaide's APT passenger terminal was opened being nearly completely Dual Gauge, AFT at Islington was partly DG, Perth, Fremantle, Port Pirie, to name a few place.
The aim of the game is to show gauge conversion is cheap in infrastructure dollar terms so the Goulburn Valley Group of lines can be next. Then the Swan Hill line will be the only long distance line left that will require a mind set change from V/line as the Engineering is simple. Gippsland is another subject altogether so I shall leave that alone at present.
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