Central Coast commuters could be affected by railway trackwork this weekend, August 3 and 4.
Buses will replace trains on Saturday and Sunday between Strathfield and Hornsby, between Hornsby and Berowra, and between Hornsby and the Newcastle Interchange.
Regular trackwork is critical for the safety, reliability, and efficiency of the rail network.
Passengers may need to change trains and are encouraged to allow extra travel time and plan ahead by visiting transportnsw.info or using trip planning apps.