Union Pacific -- Railroading Basics (GCOR) questions
with accurate answers
Absolute Block Ans✓✓✓ A length of track that no train is permitted to
enter while the track is occupied by another train.
Absolute Signal Ans✓✓✓ A block or interlocking signal without a
number plate, or designated by an A marker.
Adjacent Track Ans✓✓✓ Parallel tracks that are not separated by a
single lane roadway or similar distance are considered adjacent tracks.
*This definition only applies when determining if Track Breach
Protection is required.*
Authority Ans✓✓✓ *Must have to occupy track.* Rule 6.3 lists all
used by the railroads. The Timetable will list all within the given
Subdivision you are working on.
Automatic Block Signal System (ABS) Ans✓✓✓ A series of
consecutive blocks governed by block signals, cab signals, or both. The
signals are activated by a train or by certain
conditions that affect the block use.
Automatic Cab Signal System (ACS) Ans✓✓✓ A system that allows
cab signals and the cab warning whistle to operate automatically.
, Automatic Train Control (ATC) Ans✓✓✓ A system to enforce
compliance with cab signal indications. If the train exceeds a
predetermined speed for a given cab signal indication and speed is not
reduced at a sufficient rate, brakes are automatically applied.
Block Ans✓✓✓ A length of track:
-- Between consecutive block signals
-- Between a block signal and the end of block system limits
or
In ATC limits, the use of which is governed by cab signals and/or block
signals.
Block Signal Ans✓✓✓ A fixed signal at the entrance of a block that
governs trains entering and using that block.
Block System Ans✓✓✓ A block or series of consecutive blocks within
ABS, ACS, CTC, or interlocking limits.
Breach Ans✓✓✓ To enter an area between two adjacent tracks.
Cab Red Zone Ans✓✓✓ A "Cab Red Zone" (CRZ) exists during
critical times or when multiple tasks are occurring. During a Cab Red
Zone, an environment must be created in the locomotive control
compartment that focuses exclusively on controlling the train, verbally
communicating restrictions, and proper application of the rules. *Passing
a signal that causes train to stop at next signal will establish CRZ.*
with accurate answers
Absolute Block Ans✓✓✓ A length of track that no train is permitted to
enter while the track is occupied by another train.
Absolute Signal Ans✓✓✓ A block or interlocking signal without a
number plate, or designated by an A marker.
Adjacent Track Ans✓✓✓ Parallel tracks that are not separated by a
single lane roadway or similar distance are considered adjacent tracks.
*This definition only applies when determining if Track Breach
Protection is required.*
Authority Ans✓✓✓ *Must have to occupy track.* Rule 6.3 lists all
used by the railroads. The Timetable will list all within the given
Subdivision you are working on.
Automatic Block Signal System (ABS) Ans✓✓✓ A series of
consecutive blocks governed by block signals, cab signals, or both. The
signals are activated by a train or by certain
conditions that affect the block use.
Automatic Cab Signal System (ACS) Ans✓✓✓ A system that allows
cab signals and the cab warning whistle to operate automatically.
, Automatic Train Control (ATC) Ans✓✓✓ A system to enforce
compliance with cab signal indications. If the train exceeds a
predetermined speed for a given cab signal indication and speed is not
reduced at a sufficient rate, brakes are automatically applied.
Block Ans✓✓✓ A length of track:
-- Between consecutive block signals
-- Between a block signal and the end of block system limits
or
In ATC limits, the use of which is governed by cab signals and/or block
signals.
Block Signal Ans✓✓✓ A fixed signal at the entrance of a block that
governs trains entering and using that block.
Block System Ans✓✓✓ A block or series of consecutive blocks within
ABS, ACS, CTC, or interlocking limits.
Breach Ans✓✓✓ To enter an area between two adjacent tracks.
Cab Red Zone Ans✓✓✓ A "Cab Red Zone" (CRZ) exists during
critical times or when multiple tasks are occurring. During a Cab Red
Zone, an environment must be created in the locomotive control
compartment that focuses exclusively on controlling the train, verbally
communicating restrictions, and proper application of the rules. *Passing
a signal that causes train to stop at next signal will establish CRZ.*
