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A block or interlocking signal without a number plate, or designated by an A
marker. - ✔✔Absolute Signal
A siding within CTC or interlocking limits where a signal indication
authorizes the siding's use. - ✔✔Controlled Siding
An absolute signal controlled by a control operator. - ✔✔Controlled Signal
The tracks between outer opposing absolute signals of an interlocking -
✔✔Interlocking Limits
A movement opposite the authorized direction. - ✔✔Reverse Movement
A fixed signal at the entrance of a block that governs trains entering and
using that block. - ✔✔Block Signal
A block system that uses block signal indications to authorize train
movements. - ✔✔Centralized Traffic Control [CTC]
The location of absolute signals controlled by a control operator. -
✔✔Control Point
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,A 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. - ✔✔Crossover
The movement of trains in one direction on a main track, as specified by
the rules. - ✔✔Current of Traffic
A fixed signal outside a block system that governs the approach to a block
signal, interlocking signal, or switch point indicator. - ✔✔Distant Signal
An electrically controlled lock that restricts the use of a hand-operated
switch or derail. - ✔✔Electric Switch Lock
A main track where trains are operated in both directions. - ✔✔Single Track
A place designated by name in the timetable station column. - ✔✔Station
A notice of conditions affecting train movement. It may
also authorize movement against the current of traffic
where Rule 9.14 (Movement with the Current of Traffic)
is in effect. - ✔✔Track Bulletin
A method to authorize train movements or protect men or machines on a
main track within specified limits in a territory designated by the timetable. -
✔✔Track Warrant Control [TWC]
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, Main Track [Verbatim] - ✔✔A track extending through yards and between
stations that must not be occupied without authority or protection.
Restricted Speed [Verbatim] - ✔✔When required to move at restricted
speed, movement must be made at a speed that allows stopping
within half the range of vision short of:
• Train.
• Engine.
• Railroad car.
• Men or equipment fouling the track.
• Stop signal.
or
• Derail or switch lined improperly.
When a train or engine is required to move at restricted speed, the crew
must keep a lookout for broken rail and not exceed 20 MPH.
Comply with these requirements until the leading wheels reach a point
where movement at restricted speed is no longer required.
(6.27)
Train [Verbatim] - ✔✔One or more engines coupled, with or without cars,
displaying a marker, and authorized to operate on a main track.
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