Gary Jenkins wrote:

During the hot spell last week the announcer at Westminster Tube was
advising passengers to carry bottled water with them.

As far as I know the tube has been operating for over 100 yeras
without any seriious incidents of dehydrated passengers. Have the
operators now lost confidenc in their ability to get people to their
destination within a reasonable time?

Might be a good idea if they put vending machins selling bottled water
on the tube rather than the endless chocolate and sugary fizzy drink.