Understanding IÉ Signalling Numbers at Points

[Rob]

To understand the signalling numbering system like that in Heuston (HN)-   in the case at a points crossover,  where the driver has the option of:

- Continuing straight or

- Crossing over to shunt on a different line,   

should the Shunt (S) number on the signal with the arrow, show the number of the line the driver is on NOW, or the one he is going to crossover into?

Hope it makes sense!

 

Eg: if a driver was entering Heuston in the pic below and there was a Shunt Signal facing him with Arrow to the right, what number would be on the Signal Number?

[hurricanemk1c]

The arrow I think purely states which signal the disc (shunt signal) is associated with, rather than any route setting.

In the below, the main signal is HN314, with HN314(S) arrow pointing towards the signal / line (in this case, Platform 4)