Layout designer: Ray Stuber
Scale: O
Layout size: 6 1/2 x 12
Track type: Lionel tubular
Minimum curve: O-31
Originally appeared in the December 2015 issue of Classic Toy Trains magazine
Build the Lionel Lines track plan
By Ray Stuber | October 16, 2015A classic 6½ x 12-foot layout inspired by Lionel’s 1952 catalog
I think the "027" is a mistake on the list above. You could build it with 027, except for the siding served by the 072 switch. You would have to do something different there.
The list of track components lists them as O-27, but the description and layout plan itself seem to clearly show O-31 track components. I assume the O-31 is correct?