Joe Patrick wrote:
Given that London is a major international tourist destination, and
having noticed many tourists staring in bewilderment at the line
diagrams in the trains, I think it's likely that many passengers do
appreciate being told the next station name in advance. There are
many examples of over-provision in announcements, but this isn't
one of them.

But if you're going somewhere, do you just get on a train and hope
someone will announce where you've got to get off? Whenever I've
been somewhere I've researched in a guide book or online to find the
nearest station. It's rather like announcing where you can change
for other lines, surely you'd plan your journey beforehand and work
out yourself where you've got to change.

Joe: you're a railwayman yourself, I believe, so of course you would
carry out that research without a second thought, and so would I. But
there are many, many people who visit London and find it all rather
confusing, and are genuinely anxious about whether they are on the right
train, where they have to change etc.
--
Richard J.
(to e-mail me, swap uk and yon in address)