On Dec 22, 10:03*pm, Graham Murray wrote:
The Real Doctor writes:

True, but there is typically only one unbooked carriage, into which
the displaced passengers from several other trains are unlikely to
fit.

Or, as BR did on a number of occasions when there was disruption, cancel
all reservations.

It's interesting that the railways have an extensive pattern of things
to do when they fail to run a service, but put far less effort into
not failing in the first place. It's a fine line between contingency
planning and failure becoming normal.

ian