ChristopherJ
Member
How are automatic announcements and information boards triggered by the approach of a train at a station?
What is the interface between the train and station equipment to inform the serving of a booked train or one that is not booked to stop?
Many of times have I noticed that platform information screens and announcements air "stand clear at platform x, the approaching train is not scheduled stop at this station" - only for either nothing to pass or a train does stop...!
I did read many years ago that in order to supply accurate train running information to stations it is mandatory for the train to actually be moving. For example. If a train is 5 minutes late and then stops another 5 minutes for an unknown reason - the station information will not be updated to show the train is now in fact now 10 minutes late until it restarts motion. Judging by this am I correct to guess that the track circuits are possibly involved in the delivery of train information to stations?
What is the interface between the train and station equipment to inform the serving of a booked train or one that is not booked to stop?
Many of times have I noticed that platform information screens and announcements air "stand clear at platform x, the approaching train is not scheduled stop at this station" - only for either nothing to pass or a train does stop...!
I did read many years ago that in order to supply accurate train running information to stations it is mandatory for the train to actually be moving. For example. If a train is 5 minutes late and then stops another 5 minutes for an unknown reason - the station information will not be updated to show the train is now in fact now 10 minutes late until it restarts motion. Judging by this am I correct to guess that the track circuits are possibly involved in the delivery of train information to stations?
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