“This option would allow the New Intercity Fleet to operate on both lines and pass each other, and therefore ensure better longer term operational outcomes, while also minimising heritage impacts through reduced tunnel lining modifications,” the report states.
Mr Foley said the Government should reveal the cost of the work needed to modify the tunnels and whether trains will have to slow down to get through them.
In Fairfax Media, Mr Constance was quoted as saying parts of the Blue Mountains route were 150 years old and needed an upgrade.
“I can’t understand why Luke Foley and the Labor Party don’t want a modern track and train upgrade for the people of the Blue Mountains,” he said.
In its report, TfNSW said the more modern tracks used on the line means trains are “typically more stable” so should tilt less.