I find the concept of modular model railway layouts interesting. I find the idea of building a small module which can be joined up with those of others to make a much larger whole appealing. Unfortunately I’ve been disappointed in what I’ve seen at exhibitions; too many layouts have horribly mismatching scenery, and run a mix of British, American, Continental and Japanese trains on the same layout, which completely destroys any concept of realism. I’m sure it’s possible to do better than this.
(At which point those who happily mix British, German, American and Japanese trains on the same layout protest “But it’s fun! You just don’t understand”. Sorry, but to me it’s Hurting Wrong Fun – I don’t accept the idea that the only valid form of ‘fun’ is when you throw realism out of the window; I find doing prototype research and then making up accurate trains from a particular time and place is ‘fun’, but that’s an entirely different rant)
The only widely-accepted standard, the American N-trak, isn’t really appropriate for British outline modelling, largely because of it’s unrealistically-wide track spacing. While this might be appropriate for North American prototypes, it doesn’t look at all right for British layouts. And personally I don’t like the 3-track configuration; whatever the operational benefits it still doesn’t look right to me. Three track mainlines are uncommon in Britain; even if the third track is supposed to be a siding or goods loop.
Various British-outline groups, such as the East Surrey N-Gauge Group, the East Dorset N Gauge Group, the North East Area Group and the Chester Area Group have each been building modular layouts. As far as I can tell, each have rejected Ntrak for at least some of the reasons listed above, and have devised their own standards.
British N needs a modular standard.
I feel the standard should be more of a meta-standard, describing things like baseboard heights and standardised electrical connections, but allow some flexibility on the number and locations of tracks. Individual groups will probably want to choose a more restricted standard track formation for their own modules, and interface modules between the more popular configurations should be encouraged. I would guess that two- and three-track formations will be the most popular.
It should support both “roundy-roundy” formations with four corner sections, and “all-in-a-line” formations with a return loop at each end. “Roundy-roundy” modules need to be fixed length so that the other side of the rectangle joins up; “all-in-a-line” modules don’t have to be.
Track standards (code 80 vs. code 55) should not be part of the standard. Individual groups may decide to standardise on one of the other, but I would not like to see a standard that mandates code 80 and prohibits the more realistic code 55.
The standard should neither mandate nor prohibit scenic breaks or end profiles. This is one of the more awkward problems with modular layouts; it’s hard to get scenery to ‘flow’ between modules, and you either get abrupt transitions, or boring flat baseboards that might be OK for modelling the American prairies but isn’t so good for hillier areas. My preference would be for scenic dividers between the modules, breaking up the layout into separate ‘scenes’, although this only really works for large multi-section modules.
When setting up a modular layout at an exhibition, the organiser should be allowed to (and even encouraged to) insist that all modules and rolling stock are from a particular nation and period, rather than be expected to include every module available just because it’s there, even if it doesn’t fit the theme.