The following are all the details that were missed out in your earlier
posts on the subject

Well , since they were standing all of 10 foot from the driving cab
and since they were chatting to the driver and since I assume they're
not colourblind and can tell the difference between a red and green
signal, one would have hoped one of them might have thought , just for
a millisecond, "hey , shouldn't we tell the passengers this train is
going first?". But lets face it , who am I kidding. This is LU staff ,
this is Britain today. Great it isn't.

B2003