Sydney commuters dealt with significant delays on Thursday morning as track work backed up the train network, with further delays expected throughout the day.
Commuters have been advised by Transport NSW to allow at least 30 minutes of extra time for their commute.
Sydneysiders battled short notice for platform changes and trains suddenly bypassing normally scheduled stops.
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Track repairs between Circular Quay and St James have caused the delay, with the City Circle travelling only in one direction for some time.
The repairs have now been completed but delays and gaps in service are expected to continue throughout the morning.
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Commuters are advised to check transport apps and information screens before boarding.
The T2 Inner West and Leppington Line, T3 Bankstown Line, and T8 Airport and South lines have been most affected, with commuters expected to still expect about 30-minute delays.
T1 and T9 line commuters are also advised to allow extra time.
Sydney commuters dealt with significant delays on Thursday morning as track work backed up the train network. Credit: AAP
The T7 Olympic Park Line is also experiencing delays, but due to urgent track repairs at Olympic Park.
From 9.30am buses will replace trains.
Only a limited number of buses are available to run between Olympic Park and Lidcombe.
Commuters can also use local bus routes 525 and 526.
The line is expected to reopen by 11am.
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