"Dave Arquati" wrote in message
...
I noticed tonight that there appears to be a single train from Olympia in
the evening (2337, the penultimate) which runs a through service to
Upminster by the looks of it. There are usually two trains shuttling back
and forth between Olympia and HSK, passing at Earl's Court. So what happens
to this one that disappears off to Upminster?

Presumably it is simply going back to the depot for the night.

Peter Smyth