Train set

An example of a tinplate train set, late 1940s or early 1950s

A train set is a set, normally consisting of a model train (usually a locomotive, goods wagons (freight cars in the US) or passenger cars, and a caboose or brake van) and a small circle or oval of track. A set of rail tracks of more appropriate size for a train set is a model railroad layout. A train set is usually powered by a controller/transformer with electricity from an outlet or battery. More modern variations, such as those made by Bachmann Industries, Hornby Railways, Märklin, and Lionel, LLC, include digital command control (DCC) in replacement of analogue control (DC) which offers more flexibility in a layout, and the ability to run more than one train. Sets come at various prices from USD $30 for a starter set in HO scale to USD $5,000 for a Märklin Gauge 1 set.

Hornby produces a wide range of train sets, such as 'Smokey Joe' and 'Local Freight', analogue entry level sets, up to 'East Coast Express', a premium set, comprising a Pullman train, double track oval and controller for two tracks/trains. Some Hornby sets, such as 'The Western Spirit', consist of a mixed train.

Since the introduction of digital control, both Hornby and Bachmann have introduced train sets which feature their respective 'elite', select' and 'dynamis' control systems.