Isaac has been experimenting a couple of weeks back with a long viaduct. I don't seem to have any photos of it because it only lasted a couple of hours (if I find some I'll add it to this post). He discovered that three Duplo bricks piled up made a perfect hight pier to support the track sections. The problem is that the track moves on the Duplo because there is little friction holding it there. In this layout he returned to the idea, but only for one pier, allowing Isaac to form a fairly long bridge.
The most striking element of this layout is the cloverleaf design at the bottom of the ramp. It is highly fictional allowing trains to direct themselves onto the correct track element with ease and without having to reverse. The only odd element is the turntable, which Isaac still prefers over the cross piece despite its limitations.
Another element that reminded me more of a motorway than a railway was the track running parallel to the bridge. I don't think the photos really do it justice.


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