I recently visited the Electric Train Depot train dealers shop in Ponchatoula, LA. They are dealers and sell trains of every gauge and have two operating train layouts in O gauge open to the public. They have two Lionel trains dealers layouts at the store.
Below are pictures of my favorite of the two O gauge operating layouts at Electric Train Depot. It has a figure 8 and oval that allows reversing of trains in either direction. It also has a second oval to allow two train operation. An elevated siding has a beautiful bridge in front of the background. They have a timer on the wall that lets customers turn on the layout for a few minutes.
This is the credit for the above dealer layout.
Below is the track plan of my 40 year old main train board layout that has an oval and figure 8 with homemade turntable in center of one loop of the 8. It also has at second loop with bypasses for two train operation and relays to allow two trains to operate on each loop.
How I built the layout is on this OGR forum topic. https://ogrforum.ogaugerr.com/...ra-027-layout?page=1
Below is the second O layout at Electric Train Depot train store. It has a figure 8 but it is not integrated into a loop and also has other ovals to allow two or more train operation.
Charlie
PS: I plan to take more pictures and better study the track plan of the first layout shown at the Electric Depot in March 2018 when I plan to attend a TCS train show in Ponchatoula, LA.