The turnaround is on the left, the passenger station in the center of the turnaround.
The lower left is for loco and passenger car storage.
The freight yard is the area in the lower center/left.
The timbers on the right are the 1st 16' of a 96' 'trestle' that extends across a septic field to an orchard.
The mainline, arrival/departure and drill track extend across it.
The grade will be kept at 0% across its length. The climb will start in the orchard.
Here is a turbo CAD image of the previously mentioned trestle.
The portion of the trestle shown on the xtrkcad image is on the lower right.
It will support the main line, arrival/departure and drill tracks (left to right).
There will be several pairs of turnout switches between each to allow the switcher to cut out & assemble cars.
Here's the xtrkcad image of the trestle. The starting platform shown two images back is repeated on the left. Note that it is over 96' of track
The top rail is the mainline, the middle the arrival & departure track, and the bottom the drill track. The a/d track is designed to hold one long consist of approx. 45 cars, or 2 shorter trains.