While watching the Last Night of the Proms on Saturday I came up with a new version of the track plan, this time in Visio. I wanted something that was less literal and more schematic, something that I could eventually use as the basis for the layout control panel (with point motor studs, indicator LEDs, that sort of thing). Here is the result:
Black tracks are "visible" parts of the layout. Blue tracks are the sub-surface lines. Green is the new "relief" loop. The track labels should largely speak for themselves.
I am pleased with this as a first attempt. It will, of course, need some revision. But when I am finally happy with it I should be able to have it screen-printed onto something that can form the front of the control panel.