Modular railroading offers advantages for modelers who lacks space or time for a larger, more complex layout. In just a few square feet, a detailed scene can be created – rewarding unto itself. And by participating in a club, these scenes can be connected together as modules for larger operations.
In the club I belonged to, the Catskill, Adirondack & Berkshire RR in Albany, N.Y., each module is 2 x 4 feet, with three straight sections of HO gauge track at specified locations parallel to the module’s front side. These tracks are necessary to connect the modules, but beyond that, each modeler can choose the module’s theme and placement of additional track.
Sometimes 4 feet isn’t enough. In that case, two modules can be fashioned together and inserted as a pair into the overall layout.