Leandro,
Those were my changes for another idea - I quoted your answer to Jan's changes. I will keep them separate.
I don't see where you can elevate the green line to make it useful. The switch tie -ins to the black on the left and at the bottom pin down the green line to black line height.
The green line from 8 o'clock to 4 o'clock at the bottom would be elevated. This would block the view of the yard and accessories.
Here is my fixes. The switches connecting the green line and black line were removed. Assume that the black line is at 0cm height. The green line climbs from the tunnel at -15.50cm to 0cm, then climbs to +15.50cm around the roundhouse on open trestle to land on the straight. it is on land all the way around to the opposite corner, where it descends to 0cm on open trestle again , then descends in the tunnel under the black line at 9 o'clock to -15.50cm.
The black line needs the 4-way crossover at 9 o'clock as in an above version. The green line will not be able to change direction on the run.
This provides the elevation look that you want at the cost of disconnecting the green from the black line.
