The orginal version of the railroad served me well for 10 years. You can see it here, but it was time for something new and bigger.
This version is expanded outward approximately 2 feet on all sides and raised up 2 feet as well. The length of the mainline is approximately doubled.
This time the trains are battery powered and controlled via blue tooth using BlueRail Trains. No more rail cleaning when I want to run trains. It's great.