In article , Recliner
writes
Circle line
On Saturday 4 and Sunday 5 January, there will be no service between
Edgware Road and Aldgate via Victoria. This is due to track replacement
work. Use alternative Tube or local bus routes.

So the Circle was running Hammersmith to Aldgate?

Hammersmith & City line
On Saturday 4 and Sunday 5 January, there will be no service between
Hammersmith and Barking. This is due to track replacement work. Use
alternative Tube, local or rail replacement bus services. Rail

Hmm; that implies separate work east of Aldgate East. I wonder if the
Circle was beefed up to compensate.

--
Clive D.W. Feather