Unit Train

A train of a specified number of railcars, perhaps 100, which remain as a unit for a designated destination or until a change in routing is made. (MARAD2)

A train of a specified number of railcars, perhaps 100, wherein they remain in a unit for a designated destination or until a change in routing is made.

A train composed entirely of one commodity, usually coal or mineral, and usually composed of cars of a single owner and similar design, and usually destined for a single destination.

A train of a specified number of railcars, perhaps 100, wherein they remain in a unit for a designated destination or until a change in routing is made.