Here is a version of the Lionel 1952 catalog layout, in Lionel FasTrack (created with AnyRail). I have not yet found an image from the catalog of the 1952 layout that I can post, but here is my FasTrack version.
Using AnyRail, I put together a first try at this layout with O31 FasTrack. It doesn't match perfectly with the original because the diameters and turnouts are different. There is one O60 turnout at the top, otherwise O31. AnyRail file attached.
Using the turnouts, trains can do a twice-around route, as well as the two independent loops.