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Railroading Terms – Part 7

Continuing this series, here are some more railroading terms of interest:

Bulletin Order
A BO is used to notify railroad staff of changes in instructions, procedures, or rules affecting the movement of trains.

Cab Signal
This signal indicates track occupancy or condition and is located in the engine control compartment. The cab signal is used in conjunction with interlocking signals, and with or in lieu of block signals.

Cab Signal System
A CSS system permits cab signals and the cab warning whistle to operate.

Camp Car
This is an on-track boarding/bunk car or vehicle used to house railroad staff.

Computer Controlled Brake
A computer based electro-pneumatic system (CCB) that controls air brakes on locomotives and cars.

Control Operator
Employee assigned to operate a CTC or interlocking control machine or authorized to grant track permits.

Control Station
The location or Dispatch Office where the Operator is on duty. The remote control signal appliances or switchesare operated from here.

Controlled Point
A station specified in the timetable where signals are remotely controlled from the control station. Abbreviated as CP.

Controlled Siding
A circuited siding where both ends are governed by signals under the control of an Operator or Dispatcher. Abbreviated as CS.

Controlled Signal
Controlled by a Dispatcher or Operator, this is a fixed signal, capable of displaying a Stop indication.

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