Commuters across NSW are bracing for a hectic few days of public transport, with disruptions potentially starting as soon as tomorrow.
Negotiations between the union and transport bosses have developed, however 1300 services will be cancelled on Thursday if members of the Rail Tram and Bus Union do not accept terms of a new three-year agreement.
If it is accepted, the overtime ban on Thursday would be called off, as well as the strike on Monday.
"It is going to be an incredible challenge for us to plug services come Thursday. I would hope that we could work with the union leadership ... to make sure we are well placed to provide as many services as possible," Transport Minister Andrew Constance said.
A decision by the member is expected to come through by lunchtime today.