Thanks, Sam. I appreciate the kind words.
I don't have a track plan. I use Lionel's Fastrack Deluxe Double Crossing 5 ft x 10 ft with all O36 curves on the inner track. I don't use the 90 degree crossings that come with the track. Instead, I used two 10 inch straights to extend the track under the bridge and also used Fastrack trestles to elevate the crossover. I also used four 1 3/4" pieces on the bridge to make up the difference for losing the crossings and improvising from the plan a bit. The outter loop uses twelve O48 curves and just runs around the double crossing. I used four O36 switches (2 left-handed to connect the two plans together and 2 right-handed to add the sidings. Total measurment for the layout is 6 ft x 11 ft.