INFORMATION CENTRAL

Railroad Glossary

A plain-English guide to common railroad terms, from consist and siding to distributed power and dynamic braking.

Consist

The group of locomotives or cars that make up a train. Railfans also use the word when discussing the locomotive lineup.

Siding

A track connected to the main line that allows trains to meet, pass, or temporarily clear the main track.

Yard

A group of tracks used to sort, assemble, inspect, store, or service railroad cars and locomotives.

Distributed Power

Locomotives placed away from the lead end of a train and controlled from the lead locomotive to improve train handling.

Dynamic Braking

A system that uses traction motors as generators to help slow a locomotive or train without relying only on friction brakes.

Head End

The front of a train, especially the locomotive end.

Rear End

The back of the train, historically associated with the caboose and today often with an end-of-train device.

Interchange

The transfer of railroad cars or traffic between two railroads.

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