 The cost for this route was estimated at A$61 billion, but the adoption of more difficult alignments or cost blowouts could raise the cost to over A$100 billion.The report urged the authorities to acquire land on the corridor now to avoid further price escalations.Work on phase 2 of the study started in late 2011 and culminated in the release of the "High speed rail study phase 2 report" on 11 April 2013.