I am working on a layout design/track plan for my Dad's layout. He has four 4'x8' tables for the track area (8'x16' total track area). He then intends to have a 2'x12' strip added on one side to allow for building a main street and town. I put together the track plan in RR-Track and this was my first attempt at using the software. All of his current engines will run on O-36 track, but I kept the outside line as O-72 curves to allow for some flexibility. The inside main line uses O-60 curves. I added reversing capability in the inner most loop, but this uses O-36 curves. This is a rough draft plan. I would appreciate any thoughts, tips, suggestions you all may have for the track plan. Thanks for your input.