This is Tellwell Viaduct. The railway runs across a huge nine span bridge that the motorway slinks under. I drew this after a trip to Aberdeen and passing under the Castlecary viaduct which is a good example of how these things exist. The bottom is how the layout was for quite some time, almost nine years, before I decided to start widening the main motorway and upgrading the connecting roads to a bit more free flowing. The huge new roundabout is intended as a proposed future proof design that you can on the top for a flyover and grade separation from a connecting road just off the map to the top right. Anyway, this is a good example of how my drawing shows the different stages of the maps as they grow and evolve over time, I think.
A photo posted by Mark Shields, and his maps. (@mapsbysheeldz) on