Rail Transport Modelling - Layout Standards Organizations

Layout Standards Organizations

Several organizations exist to set standardizations for connectability between individual layout sections (commonly called "modules"). This is so several (or hundreds, given enough space and power) people or groups can bring together their own modules, connect them together with as little trouble as possible, and operate their trains. Despite different design and operation philosophies, different organizations have similar goals; standardized ends to facilitate connection with other modules built to the same specifications, standardized electricals, equipment, curve radii.

• NTRAK, standardized 3-track (heavy operation) mainline with several optional branchlines. Focuses on Standard Gauge, but also has specifications for Narrow Gauge. Due to its popularity, it can be found in regional variations, most notably the Imperial-to-Metric measurement conversions. Tends to be used more for 'unattended display' than 'operation'.
• FREMO, a European-based organisation focusing on a single-track line, HO Scale. Also sets standards for N Scale modules. Standards are considerably more flexible in module shape than NTRAK, and has expanded over the years to accommodate several scenery variations.
• oNeTRAK, operationally similar to FREMO, standardises around a single-track mainline, with modules of varying sizes and shapes. Designed with the existing NTRAK spec in mind, is fully compatible with such modules.
• Z-Bend Track, uses a double track mainline running down both sides of a module. Modules can be of any length, or width in the middle and any overall shape. The "standard" called Z-Bend Track only applies to the last five inches (12.7 cm) of the module’s interface to other modules, the electrical interface and the module height.
• ausTRAK, N Scale, two-track main with hidden third track (can be used as NTRAK's third main, as a return/continuous loop, or hidden yard/siding/on-line storage). Australian scenery and rolling stock modelled in Standard Gauge.
• NMRA, National Model Railroad Association, the largest organization devoted to the development, promotion, and enjoyment of the hobby of model railroading.
• MOROP, European Union of Model Railroad and Railroad Fans, the European standardization organisation.
• sTTandard, Polish TT-scale (1:120) modules organization.
• N-orma, Polish N-scale (1:160) modules organization.