NORAC - 10th Edition - Definitions
LETP NORAC Definitions
- 1.NORAC - 10th Edition - Definitions A block that must not be occupied by more than one train.
- A.
Absolute Block
- B.
Block
- C.
Siding
- D.
Interlocking
- 2.NORAC - 10th Edition – Definitions A block signal that is activated either by track circuit or in conjunction with interlocking or controlled point circuits.
- A.
Block Signal
- B.
Automatic Block Signal
- C.
Distant Signal
- D.
Controlled Signal
- 3.NORAC - 10th Edition – Definitions A block signal system in which the use of each block is governed by an automatic block signal, cab signal, or both.
- A.
Block Signal
- B.
Automatic Block Signal
- C.
Automatic Block Signal System (ABS)
- D.
Controlled Signal
- 4.NORAC - 10th Edition – Definitions A device on an engine which will cause a penalty application of the brakes if the engineer fails to acknowledge a cab signal change to a more restrictive indication.
- A.
Cab Signal
- B.
Speed Control
- C.
Automatic Block Signal System (ABS)
- D.
Automatic Train Stop
- 5.NORAC - 10th Edition – Definitions A length of track with defined limits on which train movements are governed by block signals, cab signals, or Form D.
- A.
Block
- B.
Siding
- C.
Running Track
- D.
Main Track
- 6.NORAC - 10th Edition – Definitions A fixed signal displayed to trains at the entrance of a block to govern use of that block.
- A.
Home Signal
- B.
Block Signal
- C.
Controlled Signal
- D.
Interlocking Signal
- 7.NORAC - 10th Edition – Definitions A lever, plug, ring, or other method of control that restricts the operation of a switch or signal.
- A.
Spring Switch
- B.
Speed Control
- C.
Blocking Device
- D.
Bolt-Lock Switch
- 8.NORAC - 10th Edition – Definitions A hand-operated switch equipped with a pipe connected locking device that is designed to shunt the signal system before the switch points are operated.
- A.
Blocking Device
- B.
Spring Switch
- C.
Semi-Automatic Switch
- D.
Bolt-Lock Switch
- 9.NORAC - 10th Edition – Definitions A publication used to notify employees of changes to rules, procedures, or other instructions affecting the movement of trains and issued periodically by the designated officer.
- A.
General Order
- B.
Division Notice
- C.
Bulletin Order
- 10.NORAC - 10th Edition – Definitions Located in the engine control compartment, this signal is used in conjunction with interlocking signals (with or in lieu of block signals) and indicates track occupancy or condition.
- A.
Cab Signal
- B.
Automatic Block Signal
- C.
Automatic Block Signal System (ABS)
- D.
Home Signal
- 11.NORAC - 10th Edition – Definitions The location where the Operator is on duty, from which remote control signal appliances or switches are operated.
- A.
Controlled Point
- B.
Control Station
- C.
Controlled Siding
- D.
Interlocking Station
- 12.NORAC - 10th Edition – Definitions A station designated in the Timetable where signals are remotely controlled from the control station.
- A.
Controlled Point
- B.
Controlled Siding
- C.
Interlocking
- D.
Siding
- 13.NORAC - 10th Edition – Definitions A circuited track in which both ends are controlled and governed by signals under the control of a Dispatcher or Operator.
- A.
Controlled Siding
- B.
Controlled Signal
- C.
Interlocking
- D.
Interlocking Station
- 14.NORAC - 10th Edition – Definitions A fixed signal, capable of displaying Stop indication, that is controlled by a Dispatcher or Operator.
- A.
Distant Signal
- B.
Home Signal
- C.
Block Signal
- D.
Controlled Signal
- 15.NORAC - 10th Edition – Definitions The assigned direction of moment as specified in the Timetable.
- A.
Crossover
- B.
Current of Traffic
- C.
Special Instruction
- D.
Running Track
- 16.NORAC - 10th Edition – Definitions A fixed signal used to govern the approach of a train to a home signal.
- A.
Home Signal
- B.
Distant Signal
- C.
Block Signal
- D.
Controlled Signal
- 17.NORAC - 10th Edition – Definitions The portion of a railroad system assigned to the supervision of a Superintendent.
- A.
Station
- B.
Yard
- C.
Line
- D.
Division
- 18.NORAC - 10th Edition – Definitions A publication issued periodically by the designated officer, which contains instructions or information which do not affect the movement of trains.
- A.
General Order
- B.
Division Notice
- C.
Bulletin Order
- 19.NORAC - 10th Edition – Definitions A power-operated switch also equipped for hand operation.
- A.
Dual Control Switch
- B.
Switch
- C.
Spring Switch
- D.
Bolt-Lock Switch
- 20.NORAC - 10th Edition – Definitions A unit or combination of units propelled by any form of energy.
- A.
Engine
- B.
Train
- C.
Consist
- D.
Track Car
- 21.NORAC - 10th Edition – Definitions A train not designated by a Timetable schedule.
- A.
Camp Car
- B.
Extra Train
- C.
Scheduled Train
- D.
Engine
- 22.NORAC - 10th Edition – Definitions Being in such proximity to a track individual, tools or equipment could be struck by a moving train or other that an on-track equipment, or in any case is within four feet of the nearest rail.
- A.
Fouling Point
- B.
Fouling a Track
- C.
Yard Limits
- 23.NORAC - 10th Edition – Definitions The point on a track beyond which equipment will foul an adjacent track.
- A.
Yard Limits
- B.
Fouling a Track
- C.
Foul Point
- D.
Interlocking
- 24.NORAC - 10th Edition – Definitions A publication used to summarize changes to the Timetable and other instruction manuals which is issued periodically by the designated officer.
- A.
General Order
- B.
Division Notice
- C.
Bulletin Order
- 25.NORAC - 10th Edition – Definitions A fixed signal governing entrance to an interlocking or controlled point.
- A.
Interlocking Signal
- B.
Home Signal
- C.
Controlled Signal
- D.
Distant Signal
Back to top