Kat wrote:
In message , Lars Elmvang
writes
The service could have been disrupted, and the controller may have
decided to run one, either to get a train back to time or if Olympia
has had a long interval without a train. I've known Circles to be
reformed into Hammersmith's en route before now

If Olympia had a long interval without train there would have had to
be a SERIOUS disruption, since the service is
run with 2 trains running with 15-18 minutes between. (So a complete
round takes 30-36 minutes for that short
stretch)

Sorry to be OT but I was looking at the current District Line
timetable today and wondered exactly where the Triangle depot is...
TIA

AFAIK it's Triangle Sidings rather than Triangle Depot.

It's in the triangle between Gloucester Road, Earl's Court and High Street
Kensington, actually underneath the block that includes Sainsbury's just
off Cromwell Road (used to be West London Air Terminal many years ago).
Access to the sidings is from the District Line south of High Street
Kensington.
--
Richard J.
(to e-mail me, swap uk and yon in address)