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35 Cards in this Set
- Front
- Back
What signals govern the use of blocks?
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Block and cab signals
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Interlocking signals govern the use of what?
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Interlocking routes
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Where a track is signales beyond the interlocking limits in the direction of movement, the interlocking signal is also what?
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Block signal
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Regard a block or interlocking signal as displaying the most restrictive indication, unless what?
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Unless the semaphore arm position is plainly seen, that aspect will govern
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If a train overruns a block signal, what must the crew do?
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Warn other trains at once by train, Stop the Train, Report it to the train dispatcher.
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When is the only time you can change the signal before an approaching train?
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except to avoid an accident
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Do not establish or authorize a conflicting route until what?
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Communication with the approaching train's crew and ensuring that the train has stopped clear of the conflicting route.
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If a signal functions improperly or the track is damaged, what must you regard the signals?
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Signals that govern movements on affected routes must display a Stop Indication. No movement may be permitted until track and signal appliances are examined and movememnt can occur safely.
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when a switch, moveable point frog, derail, or signal is under repair, what must you display?
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Stop indications for all affected routes, in addition block or mark any controls to prevent their operation
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If you have a proceed indication and can not take the signal promptly, what must you do?
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Notify the control operator immediately
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When a signal displaying a proceed indication changes to an indication requiring a train to stop, the train must do what?
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Train must stop and report signal change to train dispatcher
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Failure to display most restrictive indication. What must you do if you have this situation?
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Regard the signal as displaying stop. Train must stop immediately, employees must warn others by radio of the exact location and status of train. Notify train dispatcher.
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When a call light is on, who is notified and by whom?
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Train dispatcher is notified and any employee who sees it, unless on a moving train.
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Manual Interlocking and CTC territory. What is the phraselogy to authorize a train past a signal displaying Stop indication? Also what speed are they governed by?
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"After stopping, (train) at (location) has authority to pass signal displaying stop indication." also, specify the route when applicable. Train must move at restrictive speed.
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Both Manual interlocking and CTC. If a train is at a signal displaying a stop indication who must they contact immediately?
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Control operator
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Under CTC territory. What is the exception to the stop indication rule?
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When the control operator has stopped a conflicting movement, he may then authorize another train to proceed in the same limits, advising both crews of movement to be made.
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Under Manual interlockings: What is the exception to the stop indication rule?
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When the control operator has stopped a conflicting movement, he may then authorize another train to proceed, advising both trains of movements to be made.
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Entering signaled track at hand-operated or spring switches. Within CTC territory and manual interlocking limits, you must have what to get on main track?
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Control operator MUST authorize the train to enter the track where no governing signal exists. Verify there are no conflicting movements.
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Entering signaled track at hand-operated or spring switches. Within ABS territory you must do what to get on main track?
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Crew member must open switch and wait 5 minutes at the switch to establish block protection.
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What are the steps for hand-operation of a dual controlled switch?
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-unlock the switch lock - place selector lever in HAND position- operate the hand throw lever, - line the switch for intended route, - return the switch to power
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9.13 what must be done if he dual control switch can not be operated or does not indicate that the switch is lined and locked?
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Dispatcher must authorize movement past the stop indication and instruct the employee to operate the switch by hand.
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9.13 When a dual controlled switch has been put into hand positon, when is the power re-applied to the switch?
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After at least one unit or car has passed over the switch points. Unless otherwise instructed by the dispatcher.
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Initiating movement between signals. Move at restricted speed until the leading wheels have passed the next governing signals when?
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The train enters a block with no governing signal, the previous signal indication is unknown, movements in the opposite direction from which the block was entered.
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When communication has failed the seal of an electrically locked switch may be broken and the release operated to?
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permit a train to leave the main track, or, permit a train that has authority to enter main track. Train must not enter main track until 5 minutes after the seal is broken.
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When can a track bulletin be issued to trains when they are suspending the block system?
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Not until the affected territory is clear of trains, or until the track bulletin has been transmitted or delivered to all trains within the limits.
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What can suspend a block system or sections of it?
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Track bulletin
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What must employees follow when a block system is suspended?
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Employee must follow rules that apply to non-signaled territory.
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Trains in a block system that is suspened are limited to what speed?
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passenger - 59 mph and 49 mph for all others
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Block system is suspended. Trains will disregard extinguished or illumiated block and interlocking signals except where?
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signals govern movements over railroad crossings at grade or drawbridges or signals are connected with trackside warning detectors.
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When a block system is suspended. Trains must approach the block and interlocking signals prepared to do what?
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Must be prepared to stop.
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When the block system is suspended, all trains must do what at dual control switches?
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Trains must stop and inspect dual control switches, foul the circuit, and make sure the switch is lined properly before passing over it.
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Engines, cars or equipemnt must not be detached and left standing between what?
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opposing interlocking signals that govern movements at a railroad crossing at grade.
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What are some ways you can give authority to enter CTC limits?
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Verbal authority or controlled signal displays a proceed indication.
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What constitues verbal authority when talking about entering CTC limits?
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Movement past a stop indication and track and time.
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Unless authorized by track and time, a crew member must notify the DSPR when?
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Train clears the main track unless a crew member is in a position to prevent a following movement from passing.
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