And now with a little imagination, one might be able to visualize the layout on this very table!

John Armstrong's original design assumes two basic grades : 3.6% on the steep side (shown above the middle scenery backdrop in my layout design) and 2.1% on the lower side.  Since I planned to use Woodland Scenics foam grades, I had to rework the grades ...

I created my version of the layout design using Cadrail 8.0.  I used Cadrail to determine the stationing along the main line and used a Microsoft Excel speadsheet to develop the graduated grading system that will be used to implement the model.