Category: Rail Operations

A CAR

The odd numbered passenger vehicle of a dependant pair that carries the air compressor and Automatic Train Protection (ATP) equipment.

ABSOLUTE PERMISSIVE BLOCK

A block within which the movement of trains on a desigated section of track or tracks is directed by signals automatically controlled and without train-order authority and without superiority of trains.

ACCIDENT

Unforeseen event or occurrence which results in injury or property damage.

AIR SPRING

Pneumatic suspension system on each passenger rail vehicle to provide ride quality and automatic floor elevation adjustments.

ALIGNMENT

The horizontal and vertical location of the guideway or roadway as described by curves and tangents defining its position with respect to the surrounding area.

ALLOWANCE TIME

(Also known as Allowed Time, Bonus Time, Dead Time, Hold Time.) Time for which an operator is paid even though the hours have not been worked or have not been worked in operating a transit unit. Forms of allowance time…

ALLOWANCES

In Labor, pay elements (beyond base pay) included in an operator’s wages, for example, intervening time, layover time, overtime, pad time, report time, travel time, turn-in time. Also see Time, Allowances. (TRB)