On Thu, 04 May 2006 18:41:44 GMT, David Howdon
wrote:

Delays on the district line today were being blamed on "hot weather
precautions" by the station announcements.

What precautions are these? I've never heard of them as a cause of
delay before.

In case the wrong type of heat gives rise to a condition where LUG
might be sued?
Regards
JonH