BNSF.GCOR (general code of operating
rules) Terms
ABS - answer Automatic block signal system.
Absolute Block - answer A length of track that no other train is permitted to enter while
the track is occupied by another train.
ACS - answer Automatic cab signal system.
Articulated - answer Permanently connected multiple unite cars that share a common
truck.
ATC Actuator - answer An ATC brake applying apparatus.
ATS - answer Automatic train stop system.
Automatic Block Signal System (ABS) - answer 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) - answerA system that allows cabs signal and the
cab warning whistle to operate automatically.
Automatic Train Control (ATC) - answerA system to enforce a compliance with cab and
wayside signal indications. If the train exceeds a predetermined speed for a given signal
indication and speed is not reduced at a sufficient rate, brakes are automatically
applied.
Automatic Train Stop System (ATS) - answerA system activated by wayside inductors
positioned to apply the brakes automatically until the train stops.
Block - answerA length of track:
-between consecutive block signals.
-between a block signal and the end of block system
or
-in ATC limits the use of which is governed by cab signals and/or block signals.
Block register territory (BRT) - answerA method of operation in non-signaled territory
where trains, men, and equipment are authorized to occupy the main track in limits
designated by the timetable.
, Block signal - answerA fixed signal at the entrance of a block that governs trains
entering and using that block.
Block system - answerA block or series of consecutive blocks within ABS, ACS, CTC, or
interlocking limits.
BRT - answerBlock register territory.
Cab Signal - answerA signal in the engineer's compartment or cab that indicates a
condition affecting train movement. Cab signals are used with interlocking or block
signals or without block signals.
Cars - answerRailroad cars.
Centralized traffic control (CTC) - answerA block system that uses block signal
indications to authorize train movements.
Clearance point - answerThe location closest to a switch where it is safe for equipment,
and a person riding the side of equipment unless prohibited, to pass equipment on an
adjacent track.
Conductor - answerCrew member in charge of train or yard crew.
Control Operator - answerEmployee assigned to operate a CTC or interlocking control
machine or authorized to grant track permits.
Control point - answerThe location of absolute signals controlled by a control operator.
Controlled siding - answerA siding within CTC or interlocking limits where a signal
indication authorizes the siding's use.
`Controlled signal - answerAn absolute signal controlled by a control operator.
Crew member - answerConductors, assistant conductors, brakemen, engineers,
switchmen, and yard helpers.
Crossings at Grade - answerCrossings that intersect at the same level.
Crossover - answerA track connection between two adjacent tracks, consisting of two
switches, which is intended to be used primarily for the purpose of crossing over from
one track to the other.
Current of Traffic - answerThe movement of trains in one direction on a main track, as
specified bu the rules.
CTC - answerCentralized traffic control
rules) Terms
ABS - answer Automatic block signal system.
Absolute Block - answer A length of track that no other train is permitted to enter while
the track is occupied by another train.
ACS - answer Automatic cab signal system.
Articulated - answer Permanently connected multiple unite cars that share a common
truck.
ATC Actuator - answer An ATC brake applying apparatus.
ATS - answer Automatic train stop system.
Automatic Block Signal System (ABS) - answer 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) - answerA system that allows cabs signal and the
cab warning whistle to operate automatically.
Automatic Train Control (ATC) - answerA system to enforce a compliance with cab and
wayside signal indications. If the train exceeds a predetermined speed for a given signal
indication and speed is not reduced at a sufficient rate, brakes are automatically
applied.
Automatic Train Stop System (ATS) - answerA system activated by wayside inductors
positioned to apply the brakes automatically until the train stops.
Block - answerA length of track:
-between consecutive block signals.
-between a block signal and the end of block system
or
-in ATC limits the use of which is governed by cab signals and/or block signals.
Block register territory (BRT) - answerA method of operation in non-signaled territory
where trains, men, and equipment are authorized to occupy the main track in limits
designated by the timetable.
, Block signal - answerA fixed signal at the entrance of a block that governs trains
entering and using that block.
Block system - answerA block or series of consecutive blocks within ABS, ACS, CTC, or
interlocking limits.
BRT - answerBlock register territory.
Cab Signal - answerA signal in the engineer's compartment or cab that indicates a
condition affecting train movement. Cab signals are used with interlocking or block
signals or without block signals.
Cars - answerRailroad cars.
Centralized traffic control (CTC) - answerA block system that uses block signal
indications to authorize train movements.
Clearance point - answerThe location closest to a switch where it is safe for equipment,
and a person riding the side of equipment unless prohibited, to pass equipment on an
adjacent track.
Conductor - answerCrew member in charge of train or yard crew.
Control Operator - answerEmployee assigned to operate a CTC or interlocking control
machine or authorized to grant track permits.
Control point - answerThe location of absolute signals controlled by a control operator.
Controlled siding - answerA siding within CTC or interlocking limits where a signal
indication authorizes the siding's use.
`Controlled signal - answerAn absolute signal controlled by a control operator.
Crew member - answerConductors, assistant conductors, brakemen, engineers,
switchmen, and yard helpers.
Crossings at Grade - answerCrossings that intersect at the same level.
Crossover - answerA track connection between two adjacent tracks, consisting of two
switches, which is intended to be used primarily for the purpose of crossing over from
one track to the other.
Current of Traffic - answerThe movement of trains in one direction on a main track, as
specified bu the rules.
CTC - answerCentralized traffic control
