The modular concept is such that members can each build relatively simple, portable sections which can be combined in any arrangement and number to form a larger operating layout.
All basic modules are interchangeable in any location on the layout.
The module can be quickly and simply connected, or disconnected to other modules. They can be a basis for a permanent layout and can allow for a wide range of individual expression, from simple to complex track and minimal to full scenery. Each module should meet the following goals as a minimum, in order to provide the inter changeability necessary to allow the modular concept to work. Each module should adhere to all of the standards presented within this specification. The modules must be fully portable, relatively equal in size and be constructed of readily available materials to minimize expense and provide for ease of manipulation.