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The force that enables a train to move on a railway track.

All the vehicles that move on a railway, including both powered and unpowered vehicles.

The layer of crushed rock or gravel upon which railway sleepers (ties) and track are laid.

A device at the ends of a railroad car or locomotive that absorbs shock and coupling impact.

An incident in which a train comes off its rails.

A railway station where tracks terminate, trains only enter and leave in one direction.

A building from which railway signals and switches are controlled.

A series of connected railroad vehicles, such as coaches or freight cars.

The overhead wire system used to deliver electricity to a locomotive or train.

A tract of land on which railway tracks are laid, encompassing the ground underneath and to the sides of the rails.

The distance between the inner faces of the rails on a track.

A mechanical device that connects rolling stock in a train.

A point at which a railway line crosses a road or path at the same level, as opposed to an overpass or tunnel.

A wheeled wagon or trolley onto which one or more pairs of wheels are fixed.

The cross sectional shape of a railway rail.

A low-speed track section distinct from a running line or through route such as a main line.

The time interval between trains moving in the same direction on a particular route.

An arrangement of signal apparatus that prevents conflicting movements through an arrangement of tracks such as junctions or crossings.

An apparatus mounted on the roof of an electric train to collect power through contact with an overhead line.