Individual members each have two 4 foot long modules that are boxed together for transportation or storage.
Some members have more than one pair of modules, giving additional modeling opportunities.
The Society was formed in 1984 by an informal association of modelers who had operated a successful Maritime model railroad convention in 1983. The group wanted to make a portable HO scale modular model railroad layout. Profits from the first show were put into materials to construct the original modules and corners. These were all built at one time, and parceled out. Such a modular model railroad is comprised of individual sections built by members in their own homes, all to common specifications so they can be fastened together in any order.