||Originally developed by N
Scale modellers in Japan, the T-TRAK
concept relies on the interlocking qualities of
Kato Unitrack, which is the required brand of
track (at least at the joining ends of a module).
With the obvious similarity between Kato's N
Scale and Rokuhan's Z Scale track (both have a
moulded ballast base and a similar locking
mechanism to join individual track pieces) the
concept as a whole seemed interesting.
Australian T-Trak Group has metric dimensions for
Z Scale, and even though these are based on
Micro-Trains track they are fully compatible with
Rokuhan track. The depth of a standard module is
set at 280mm with a width of 328mm; the track
overhang on both module ends is a typical feature
of T-TRAK which is supposed to ensure good
interlocking (with e.g. Kato Unitrack) even
between modules which aren't quite square (and
therefore wouldn't fit well). The resulting small
gap between modules is a defining trait of T-TRAK
modules, but not everybody's cup of tea.
modules are easy to build and comparatively easy
to store, transport and set up. The "snap
together" formula allows to put together
layouts ranging from a simple circle
to large complex layouts.
for (and still overwhelmingly used for) N Scale,
the idea has also been adapted for HO and Z Scale
(recently incorporating the larger radii curves
offered by Rokuhan by T-TRAK-Z), but given
that I simply intended to have a modular layout
which could be set up temporarily without much of
a fuss I did not have to concern myself with the
compatibility of parts of my layout with other
modeller's modules - which is why I took the
T-TRAK concept as a basis but introduced some
changes according to my own preferences.