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What are modules?
Essentially a module is a layout board built to common NMRA dimensions (typically 4ft x 2ft) and standards. The builder of the module has to adhere to certain requirements relating to construction, some track placement and electrics in the knowledge that his or her board, when placed against a board built by someone else will explicitly match up with that board. This ensures that height, depth, backscene, track and electrical wiring are all compatible. By placing 'independent' modules adjacent to each other a layout can be constructed very quickly.
The purpose and main advantage of modules is to allow people to build one or more boards at home and then take them along to the club for running or exhibitions. It can be seen that the concept of modules is especially useful if a club does not have its own dedicated premises for instance. At the same time the board builder could be learning new skills, although as detailed in the next paragraph this can also have it's problems.
Disadvantages are that most people have slightly different personal standards and skills, not to mention rulers that seem to be calibrated differently to everyone else's! This can lead to some interesting situations, not to mention spectacular visual effects caused by 'creative' wiring techniques, all of which have to be ironed out. This process can take some considerable time, and even then strange faults can manifest themselves at the most inopportune moments, normally during the course of an exhibition. It is essential that if the module builder is not an experienced modeller, his/her work is regularly assessed in order to avoid some of the pitfalls mentioned.
The above is just a very brief description of the module concept. To find out more visit the NMRA web pages detailing module design and standards by clicking here.
© Copyright 2000 - 2008 Seaboard Southern Compiled & maintained
by Peter Borcherds
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