Coasties planning a trip to Sydney on the weekend will be interested to know of changes to the rail system on July 20 and 21.
Essential trackwork will see buses replace trains from Strathfield to Central from 9pm Saturday to 2am Sunday.
Central Coast passengers will need to change to buses either at Strathfield or Ashfield.
Passengers are encouraged to allow extra travel time and plan ahead by visiting transportnsw.info or using trip planning apps.