Mechanical Semaphores?

[Delboy]

I'm dreading getting to the semaphore signalling stage of my layout build. Working semaphores on a removable upper level using wire-in-tube could be a complex development.

I agree with you there.
If you have to have a removable upper level, then servo controlled working semaphore signals may be the only way forward.

[CarriageShed]

I agree with you there.
If you have to have a removable upper level, then servo controlled working semaphore signals may be the only way forward.

That's kind of what I was expecting... more electrikery to try and work out. Ugh