Naturally, your choice of model train scale will depend on what you want your railroad to do. It is important to remember that bigger is not necessarily better.

You can pack more into the scene with a smaller model train scale (such as N scale).

If you live in an apartment or small house where space is limited, then think about a smaller scale such as Z scale, N scale and HO scale. For a micro train, try Z scale trains, which are 1:220