Toy Train - Standards

Standards

The first widely adopted standards for toy trains running on track were introduced in Leipzig, Germany in 1891 by Märklin.

Märklin measured the gauge as the distance between the centers of the two outer rails, rather than the distance between the outer rails themselves. Lionel's standard gauge is allegedly the result of Lionel's misreading these standards, as are the variances in O gauge between the United States and Europe.

Most of these standards never really caught on, due to their large size, which made them impractical to use indoors, as well as the high price of manufacturing. Wide gauge trains, which are close in size to 2 gauge, are produced in limited quantities today, as are 1 gauge and O gauge trains. Of these, O gauge is the most popular.

The modern standards for toy trains also include S gauge, HO scale, N scale, and Z scale, in descending order of size. HO and N scale are the most popular model railway standards of today; inexpensive sets sold in toy stores and catalogs are less realistic than those sold to hobbyists. O gauge arguably remains the most popular toy train standard. Another size that is attracting interest among hobbyists is building and operating trains from Lego, or L gauge, which is roughly 1/38 scale.

A "de facto" standard is used by some companies making wooden toy trains that run on wooden tracks. This is usually referred to as "Brio" or "Thomas" compatible in reference to two major companies. The term "Vario System" introduced by the company Eichhorn, refers to a variant of the connecting system used by some modern wooden track producers. The tracks don't use rails as such but rather grooves set apart a certain distance. The same "gauge" is used by the "Lionel Great American Adventure series" produced by Learning Curve, the Plarail system from Tomy and Trackmaster. Although the rolling stock of each system may be used to some extant on the tracks of other systems the compatibility beyond simple straight track and large radius curves may be rather limited.

Playmobil is an example of a company that offers a complete play world system based on its small plastic dolls and has later extended its play world to railways. It has developed two train systems to date. One is aimed at larger children using electric trains and remote control. This track system is designed such that it can also be used outside much like a garden train. The other system is designed for preschool children or even toddlers. An example of a system aimed at the very young is offered among others by the company "Wader Toys". This includes tracks for road and rail as well as waterways. The elements are very simple in design, sturdy and washable as they are thought for play including such environments as sandboxes, mud and water. To scale detail is a very minor issue with such systems that focus rather on sturdiness, avoiding sharp edges and avoiding parts that could be a choking hazard.

Although the words "scale" and "gauge" are often used interchangeably, many toy train manufacturers historically had little concern with depicting accurate scale. American Flyer tended to boast its closer accuracy compared to other manufacturers. The terms "O scale" and "S scale" tend to imply serious scale modeling, while the terms "O gauge" and "S gauge" tend to imply toy trains manufactured by Lionel and American Flyer, respectively. While S gauge is fairly consistent at 1:64 scale, O gauge trains represent a variety of sizes. O gauge track happens to be 1/45 the size of real-world standard gauge track, so manufacturers in Continental Europe have traditionally used 1:45 for O gauge trains. British manufacturers rounded this up to 1:43, which is seven millimeters to the foot. U.S. manufacturers rounded it down to 1:48, which is a quarter-inch to the foot. However, most engaged in a practice of selective compression in order to make the trains fit in a smaller space, causing the actual scale to vary, and numerous manufacturers produced 1:64 scale trains—the proper size for S gauge—in O gauge, especially for cost-conscious lines.

Some of the earliest O gauge trains made of tinplate weren't scale at all, made to unrealistic, whimsical proportions similar in length to modern HO scale, but anywhere from one and a half to two times as wide and tall.

Some adult fans of toy trains operate their trains, while others only collect. Some toy train layouts are accessorized with scale models in an attempt to be as realistic as possible, while others are accessorized with toy buildings, cars, and figures. Some hobbyists will only buy accessories that were manufactured by the same company who made their trains. This practice is most common among fans of Marx and Lionel.