I think that a stipulated restricted speed when passing stations is standard
procedure on many undergrounds throughout the world for a number of reasons.

"Steve Fitzgerald" ] wrote in message
... .

John was quite correct with the real reason. When a train runs out of
service (or non-stops a station) the rules state it must be travelling at
no more than 5 mph at the station starter - there is no rule about the
rest of the station platform.