Another six common railroading terms with simple definitions:

Engine Servicing Track
Area Track(s) for servicing, repairing, inspecting, testing or even rebuilding of engines.

Engineer
The crew member designated to operate a train. Abbreviated as Engr.

Extra Board
A list of crew assigned to trains when an extra train is needed, or when the regular crew has worked the maximum legal hours and needs rest time.

Fixed Signal
A signal at a fixed location that affects the movement of a train.

Flagman
Usually, the brakeman assigned to duties at the rear end of the train.

Flares Or Fuses
A warning signal to other trains. These glow (burn) for up to 15 minutes.