Here's a new phenomenon: carrying out Underground track repairs whilst a train
is in service, which is deliberately held up for that purpose!

Today, around 9.45a.m., I was in the front carriage of an Edgware Road train at
West Brompton. 2 fluorescent-jacketed men got into the driver's cab. About 200
yards from Earl's Court, the train stopped (just before it emerges into
daylight from the tunnel, West of the station) for about 10 minutes. Clanking
could be heard in front of the train - like spanners being dropped on the rail.
All the passengers looked at each other rather bemused. After a few minutes,
came the announcement from the driver: "Sorry for the delay, but we are
checking a piece of trackside equipment"! A few minutes later, the train moved
off into Earl's Court and the 2 men in fluorescent jackets got off, complete
with tools!

Never experienced that before!

Can any of the more experienced aficianados of this site shed any light on this
curiosity?

Marc.