Happy New Year everyone!
Dave, I have just come acorss this thread and wish to offer you my congratulations on a superb layout.
There is lots of modelling and detailing inspiration on your layout. I am pleased to see you went down the way of adding a bit of electronics work and building this interlocking system of yours. I have been brewing about ideas of something similar for my first layout for a while and am excited to see somebody else putting such ideas into practice
The layout seems to offer quite some potential for train movements, especially with that bi-directional platform track in the middle and the associated crossovers.
Superb layout and well done!!!