Back in 2016, after a break of a few decades, I decided to get back into railway modelling. For some reason I can't quite fathom, I decided not to create a scale model with modern models, but instead started accumulating a range of Hornby Dublo three rail equipment. Fast forward to 2018, and the layout that I eventually built took shape as a very old-school double track oval with reversing loop, goods yard, turntable and engine shed and a four track terminus, all on a board that is 8'x4'. The funny thing is, I'm getting more enjoyment out of it than I did from all the terminus to fiddle yard scale models I have had in the past. Both our grandsons love it too. It's too early to say whether or not our granddaughter is interested, although she has watched the trains go around, but then she's only one year old.
here is the track plan. All the points, signals and uncoupling ramps that are not easily reached from the control panel are electrically operated.
Here is an overhead view of one end of the layout. The Flying Scotsman is a Trix model and the Caledonian locomotive at the far end, somewhat improbably hauling a rake of Gresley LNER teak stock is a GEM body kit on a Tri-ang B12 chassis converted to three rail. Everything else is Dublo.