Nightly from 9.30pm to 1.30am, buses replace trains between Richmond and Blacktown.
Buses towards Blacktown may leave up to 20 minutes earlier than the normal train timetable.
Tuesday and Wednesday, nightly from 11.50pm to 1.30am, some trains run to a changed timetable between Blacktown or Leppington and Olympic Park. Some trains start and end at Granville.
You may need to change trains at Granville to continue your journey.