Wyndham commuters will need to wait just over four weeks before they can catch trains from the new Tarneit and Wyndham Vale Regional Rail Link (RRL) stations.
The new stations were completed late last year and the new 45-kilometre link between Southern Cross Station and west Werribee was due to open in April.
But the opening was pushed back earlier this year when the state government discovered there weren’t enough V/Line trains to run on the line.
The $4.3 billion project will now open on June 21, eight weeks behind schedule.
The link is the first major expansion of the state’s rail network in more than 30 years and is designed to separate regional and metropolitan trains.
Once RRL is open, Wyndham commuters wishing to travel to and from Geelong will need to catch a train from the new stations at Tarneit or Wyndham Vale, instead of Werribee.
It is anticipated that the new link will allow trains to run more frequently on the Werribee line.
The government maintains the delayed opening of RRL means commuters will be spared chaos and confusion.
Public Transport Minister Jacinta Allan said the previous government did not order new V/Line carriages for two years after they came to office, meaning there were not enough trains to run on the line.
Public Transport Victoria chief executive Mark Wild said that it was important to ensure the new network operated as smoothly as possible from day one.
“We thank customers for continued patience so we can ensure we deliver the more reliable and consistent services they deserve,” he said.