Dear the assembled wisdom of RMWeb... 🙂
I'll set out the exact details underlying my question in a moment, but in summary what I can't find any documented online prototype examples for, or anecdotal recollection, is this:
If shunting ECS from one platform to another at a terminus station beyond the starter signal, would the station signalling be set up for the shunt to take place in the outbound direction (and then reversing back once clear), or additional shunt signalling provided to proceed "wrong line" (thus then reversing and "arriving" at the correct platform in the inbound direction)?
Preference is for UK main line modern image information (colour-light signalling, tending towards modern day if practices have changed) but any historic knowledge or similar situations from LU/overseas gratefully received!
I am starting to model a rather space-constrained terminus (prototypically there would usually be a lot more space for this station than I have allowed, so the situation may not even arise, I know). Comprising an up and a down line, a scissors crossover, and two terminus platform roads (see attached diagram, platforms truncated). Although not pictured, the other end of the layout is exactly the same. Eventually I will likely automate some shuttling back and forth for when I don't want to drive - this will form a shelf along the long wall of the railway room.
My current plan for signalling is shown - theatre box on arrival from the up line for platform 1 (top) or 2 (bottom), and calling on signal for entering an occupied platform road with its own theatre box (seems to be the new way according to forum accounts). Starter signals from both platforms for departing on the down line
Assuming I may on occasion want to shunt a train from one platform to the other in a prototypically realistic fashion supported by prototypically realistic signalling despite the space constraints (I haven't yet thought through a scenario where this would be likely yet, admittedly), what I am struggling to find is whether a location like this would be setup up in one of three likely configurations:
0. Just don't do it and don't allow it! (Boring, even if prototypically most likely)
1. Without extra signalling, when given proceed aspects for the down line, set forward clear of the crossover, communicate with signaller, then set back
2. Using additional shunt signalling to proceed out of the platform as a shunt move along the down line to a limit of shunt clear of the crossover, then set back (presumably with a calling on in the "wrong direction" on the down line before the crossover indicating which platform)
3. Using additional shunt signalling to proceed out of the platform as a shunt move wrong-line down the up line to a limit of shunt (thus keeping the LOS facing away from prevailing traffic), then using the existing calling on signal for up arrivals to manage setting back into the other platform
Any information on what should be done, examples of this sort of arrangement gratefully received. Plus any comments and input on if my initial plans are sensible, prototypical, both, neither... I'm working from reading and acquired knowledge rather than any first-hand experience.
Many thanks,
- Ben.