Let me know if I am "on track" with this amateurs personal observations. I'd welcome the input of the experienced model railroaders. These are food for discussion at this point.
1. Track must be placed on a solid, smooth road bed. All changes in grade or curvature should gradual.
2. Vertical grade changes should be in 1% increments.
3. Always halve a straight track between reverse horizontal curves -at least 12 inches
4.Avoid steep grades with horizontal curves.
5. Avoid switch tracks on grades and curves, Best on flat straight runs.
6. Tracks must be within 2 feet of an edge so you can reach them.
1. Track must be placed on a solid, smooth road bed. All changes in grade or curvature should gradual.
2. Vertical grade changes should be in 1% increments.
3. Always halve a straight track between reverse horizontal curves -at least 12 inches
4.Avoid steep grades with horizontal curves.
5. Avoid switch tracks on grades and curves, Best on flat straight runs.
6. Tracks must be within 2 feet of an edge so you can reach them.
The only quibble I'd have is the the entire layout shouldn't have any area more 30" deep because it's hard to reach anything if the layout is deeper than that.