Up to 95.3 per cent of all Friday’s services were either delayed or cancelled, which Transport for NSW put down to 862 train drivers and guards not reporting for their normal shifts.

What happened on Sunday?

“There’s no blank cheque. We can’t sign a blank cheque to settle this dispute. If we did, there’d be another demand and in six months time, we’d be back here again,” Graham said.

‘We will not be coming back with new demands’

Warnes said the government’s tone would further put workers offside and they would not show up to work on Monday.

Commuters are seen at Parramatta Station in Sydney on 14 February. Source: AAP / Mark Evans

Warnes also took aim at the government’s characterisation of the union’s bargaining tactics.

“This idea of us coming back with demands in six months is complete nonsense and I can tell people of NSW that we will not be coming back with new demands in six months,” he said.

Delays and cancellations expected to continue

“Sunday nights can be tough enough in preparing for the working week without thinking about the uncertainty of how you’re going to get to work and how long it’s going to take,” he said.

The matter will be heard in a full bench hearing of the Fair Work Commission on Wednesday, Transport for NSW said.