Single Line Working Regulations
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Questions and Answers

What class of stations does the Eastern Railway have for single line working?

  • A class
  • B class (correct)
  • D class
  • C class

Which condition must be met regarding the last preceding train for the line to be considered clear?

  • The whole of the last preceding train must arrive complete. (correct)
  • At least half of the last preceding train must arrive.
  • Only the cargo cars must arrive complete.
  • Only the locomotive must arrive complete.

What is required for signals when the line is supposed to be clear?

  • Signals must be raised and visually inspected.
  • Signals should be turned off at all stations.
  • They must be left in the ‘off’ position.
  • All necessary signals must be put back to ‘on’ behind the preceding train. (correct)

At which point must the line be clear at stations equipped with two aspect signalling?

<p>Up to the Home signal if there is no Shunting Limit Board. (A)</p> Signup and view all the answers

What is a requirement at stations with multiple-aspect signalling for line clearance?

<p>Clear up to the Shunting Limit Board or outermost facing points if no limit board is present. (A)</p> Signup and view all the answers

Which statement is true about the single line work regulations?

<p>Line Clear cannot be given without confirming conditions are met. (A)</p> Signup and view all the answers

What must be understood about the Home signal in the context of line clear?

<p>It indicates the train can proceed only if the line is clear. (C)</p> Signup and view all the answers

What should be done with a found token once instruments have been restored?

<p>It should be placed in a paper cover and kept safe. (D)</p> Signup and view all the answers

If a lost token is found at a station where it does not belong, what is the correct procedure?

<p>It should be sent to the Divisional Railway Manager of the correct section. (C)</p> Signup and view all the answers

How must train messages be passed in the event of electrical failures?

<p>Using paper Line Clear obtained from the nearest station. (A)</p> Signup and view all the answers

To whom should failures of electrical signalling apparatus be reported?

<p>To the Divisional Railway Manager and other specified personnel. (A)</p> Signup and view all the answers

What should the Station Master do after a failure has been rectified?

<p>Log the incident in the Block Failure Register. (A)</p> Signup and view all the answers

What is required for a station master to take a Token from the instrument?

<p>Obtaining a Private Number (C)</p> Signup and view all the answers

What should a station master do if the bell rings irregularly?

<p>Suspend Token Working (C)</p> Signup and view all the answers

Who is authorized to place or take a Token in the instrument?

<p>The Station Master on duty (A)</p> Signup and view all the answers

What action should a station master take if there's suspicion of unauthorized handling of the instrument?

<p>Introduce paper Line Clear Working (D)</p> Signup and view all the answers

What does the code '0000' signal?

<p>Train out of section (C)</p> Signup and view all the answers

What must the station master do before handing the Token to a Loco Pilot?

<p>Ensure the Token is correctly placed in the pouch (B)</p> Signup and view all the answers

Which of the following is true regarding the Token Working procedure?

<p>The Station Master must oversee Token placement (C)</p> Signup and view all the answers

Under what condition can shunting be carried out between Home signals?

<p>If there are no Shunting Boards or Advanced Starters (B)</p> Signup and view all the answers

What must be ensured regarding visibility when carrying out shunting after line clear has been given?

<p>There can be no fog or tempestuous weather impairing visibility (D)</p> Signup and view all the answers

What is the restriction on shunting movements when signals are taken off for an incoming train?

<p>Movements towards points over which the train will pass are restricted (C)</p> Signup and view all the answers

In what situation can shunting occur between the outermost facing points?

<p>If there are no Shunting Boards or Advanced Starters (C)</p> Signup and view all the answers

Which of the following is a requirement before shunting can take place in foggy conditions?

<p>No obstruction within station section is allowed (D)</p> Signup and view all the answers

What aspect governs the conduct of shunting between Shunting Boards?

<p>Compliance with General Rule 8.10 (A)</p> Signup and view all the answers

What happens to shunting operations if an incoming train is not isolated?

<p>Shunting movements must not conflict with the incoming train's path (D)</p> Signup and view all the answers

What does the note associated with Rule 5.04 indicate?

<p>Weather conditions significantly affect shunting operations (A)</p> Signup and view all the answers

Shunting can occur between which of the following if other options are not available?

<p>Outermost facing points (C)</p> Signup and view all the answers

What should the Station Master do if the signal is received too late to take action?

<p>Repeat the signal to the next station. (C)</p> Signup and view all the answers

When can the 'Is Line Clear' signal be sent in the case of a stopping train?

<p>After the 'Train Entering Section' signal is received. (D)</p> Signup and view all the answers

What is the Station Master's responsibility concerning the Token delivered to the Loco Pilot?

<p>He must ensure the proper Token is provided for the section. (B)</p> Signup and view all the answers

What action should the Station Master take upon receiving an incoming Token?

<p>Examine it for correctness and document it. (A)</p> Signup and view all the answers

What must the Station Master ensure regarding the Tokens passing through his staff?

<p>Every staff member must know the distinguishing features of the Tokens. (A)</p> Signup and view all the answers

What is the procedure if 'Line Clear' must be canceled after it has been given?

<p>Replace the Token and return the Operating Handle to normal. (B)</p> Signup and view all the answers

In relation to the 'Testing Signal', who is responsible for repeating it?

<p>The Station Master. (D)</p> Signup and view all the answers

When can the 'Is Line Clear' signal be sent for a train booked to run through?

<p>Before the 'Train Entering Section' signal is received but no earlier than five minutes prior. (B)</p> Signup and view all the answers

What happens if the Station Master fails to follow the token handover rules?

<p>There may be safety violations or operational failures. (A)</p> Signup and view all the answers

What is the requirement for the 'Train Entering Section' signal?

<p>It must be received before the 'Is Line Clear' signal is sent for stopping trains. (A)</p> Signup and view all the answers

What action should be taken when returning a Token/tablet to the instrument it was extracted from?

<p>Private Numbers must be exchanged and recorded. (D)</p> Signup and view all the answers

What should a Loco Pilot do before entering a Block section?

<p>Verify the Token/tablet is valid for the section. (A)</p> Signup and view all the answers

Under what condition can a train enter a Block section without a Token/tablet in possession?

<p>When assisting a disabled train with a written authority. (A)</p> Signup and view all the answers

What must be recorded in the Train Signal Registers when precedence is given to a more important train?

<p>A record stating the refusal of line clear and the fact. (D)</p> Signup and view all the answers

What is required of the Loco Pilot when a Token/tablet is handed over by the Guard due to train disability?

<p>The Loco Pilot should obtain a receipt from the Guard. (D)</p> Signup and view all the answers

Which of the following conditions is NOT required for the line to be considered clear at a Class 'B' station?

<p>The expected train must have departed from the previous station. (C)</p> Signup and view all the answers

What is the primary function of the Shunting Limit Board at a Class 'B' station?

<p>To determine the area within which shunting operations are allowed. (A)</p> Signup and view all the answers

At a station equipped with multiple-aspect signalling, what must be ensured if there is no Advanced Starter or Shunting Limit Board?

<p>The line must be clear up to the outermost facing points. (B)</p> Signup and view all the answers

In the context of line clearance, what is the significance of the Home signal at a Class 'B' station?

<p>It determines the line clearance to the next station’s outer limit. (C)</p> Signup and view all the answers

Which of the following is a necessary condition at a Class 'B' station for granting Line Clear?

<p>The last preceding train has completed its stop and is fully parked. (C)</p> Signup and view all the answers

At which point must line clearance be checked at stations with two aspect signalling if an Advanced Starter is present?

<p>Up to the Home signal or Advanced Starter nearest to the expected train. (B)</p> Signup and view all the answers

What is the implication if the line is not clear at the outermost facing points during train operations?

<p>Immediate action must be taken to reestablish line clearance. (D)</p> Signup and view all the answers

What condition must be observed and reported if detected on a train passing a station?

<p>A hot axle-box (B)</p> Signup and view all the answers

If a Station Master sends a 'Stop and Examine Train' signal, what immediate action must the receiving Station Master take?

<p>Acknowledge the message and stop all trains in both directions (B)</p> Signup and view all the answers

In what situation should the Station Master consider stopping a train going in the opposite direction?

<p>If the signal showing the 'Stop and Examine Train' was sent (B)</p> Signup and view all the answers

What must be done if the Station Master receiving a danger signal considers adjacent lines likely to be affected?

<p>Stop trains on both adjacent lines (D)</p> Signup and view all the answers

What is the primary concern for the Station Master while examining a train after a danger signal?

<p>To assess if any damage or passenger injury has occurred (C)</p> Signup and view all the answers

What should the Station Master avoid allowing until the affected train arrives at the station?

<p>Any other trains to proceed on adjacent lines (D)</p> Signup and view all the answers

What must the Station Master do after managing a situation caused by a train threat?

<p>Prepare a report for regulatory compliance (A)</p> Signup and view all the answers

If an irregularity is noted on a train, what is the first step a Station Master should take?

<p>Show danger signals to halt the train (C)</p> Signup and view all the answers

How should a Station Master acknowledge the receipt of a danger signal?

<p>Immediately and in the appropriate manner (C)</p> Signup and view all the answers

What is the primary responsibility of the Station Master regarding the issuance of the Token to the Loco Pilot?

<p>Verifying the Token is correct for the section and handed over only if obtained properly (C)</p> Signup and view all the answers

What action should the Station Master take if the Token is received from an incoming train?

<p>Examine the Token for correctness and enter its number in the register (A)</p> Signup and view all the answers

Under what circumstances can the 'Is Line Clear' signal be sent for a stopping train?

<p>After the 'Train Entering Section' signal is received (C)</p> Signup and view all the answers

What must the Station Master do if 'Line Clear' must be canceled after it has been given?

<p>Replace the Token in the instrument and return the Operating Handle to normal (A)</p> Signup and view all the answers

What is the purpose of the 'Testing Signal'?

<p>To check the functionality of Block Instruments and signaling equipment (B)</p> Signup and view all the answers

What should the Station Master do if a signal is received too late to take the required action?

<p>Repeat the signal to the next station towards which the vehicles are heading (B)</p> Signup and view all the answers

Which of the following statements accurately describes the signal process for trains booked to run through?

<p>The 'Is Line Clear' signal can be sent five minutes before the train is booked to leave the previous station (C)</p> Signup and view all the answers

What is required of the Station Master regarding staff knowledge about Tokens?

<p>Educate them about the distinguishing features of Tokens for adjoining sections (D)</p> Signup and view all the answers

What happens if the Station Master fails to issue the correct Token to the Loco Pilot?

<p>The train will be delayed until the correct Token is found (B)</p> Signup and view all the answers

What must staff members do with the Tokens passing through their hands?

<p>Be familiar with the features of adjoining section Tokens (A)</p> Signup and view all the answers

What is required of the Station Master upon receiving the ‘Train Divided’ signal?

<p>The signals for the first portion must be taken off. (D)</p> Signup and view all the answers

What should the Station Master do if a train passes without a Tail Lamp?

<p>Wait to hear that the train has been stopped and found complete. (B)</p> Signup and view all the answers

What must the Station Master ensure before sending the ‘Train out of Section’ signal for a divided train?

<p>No portion of the train has been left in the Block section. (D)</p> Signup and view all the answers

In the event that vehicles are reported as running away, what position should the signals take?

<p>They must be held in the 'ON' position. (D)</p> Signup and view all the answers

What immediate action is required by the Station Master upon receiving the ‘Vehicles running away’ signal?

<p>Reverse the facing points to protect standing trains. (D)</p> Signup and view all the answers

What does the ‘Train out of Section’ signal indicate regarding the status of a block section?

<p>The block section is assumed obstructed until confirmed clear. (A)</p> Signup and view all the answers

What is the primary concern if a train passes a station in multiple parts?

<p>Assuring that signals are taken off for the first portion. (C)</p> Signup and view all the answers

When a train is reported as incomplete, what action must the Station Master take?

<p>Stop further trains and clear the section immediately. (D)</p> Signup and view all the answers

What action should not be taken once it is known that a train is running without a Tail Lamp?

<p>Insert the Token into the instrument. (B)</p> Signup and view all the answers

Flashcards

Single Line Station Class

All single line stations on Eastern Railway are classified as 'B' class.

Line Clear Conditions

Line clear can't be signaled at a 'B' class station until the last train arrives completely, all signals are placed back to 'on' position behind the preceding train, and the line is clear until specified points.

Train Arrival Condition

The entire last train must arrive at the station before the line can be considered clear.

Signal Placement

All signals behind the prior train must be set to the "on" position.

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Line Clear Checkpoints (2 Aspect)

For 2-aspect signaling, the line is clear up to the shunting limit board/advanced starter (or home signal if no board/starter) ,or outermost facing points, depending on the station.

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Line Clear Checkpoints (Multiple/Modified Aspect)

For multiple or modified lower quadrant signaling, the line is clear until the shunting limit board/advanced starter (or outermost facing points if no board/starter).

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Expected Train Position

Line-clear conditions must extend to a point defined by the station's layout and the anticipated train's placement.

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Shunting Procedure

The method of moving trains or wagons within a station or yard to specified locations.

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Necessary Signals (On)

Signals that allow shunting to be done safely during different situations.

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Shunting Boards/Advanced Starters

Devices that control shunting operations; they play a key role in safe shunting activities.

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Home Signals

Signals placed at the beginning of a track.

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Outermost Facing Points

The farthest points where trains can be moved during shunting within a station.

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Isolated Line

A line that is separated from other lines to ensure safety during train operations.

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Incoming Train

A train approaching a station or track.

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Restricted Visibility Conditions

Weather conditions (fog, heavy rain etc.) that reduce visibility.

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Station Section

A specific area within a station for shunting and storage of trains.

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Private Numbers

A unique code or signal used in single-line railway operations to acknowledge the completion of a specific task, often indicating a clear track section for train movement.

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Token Instrument

A device used in single-line railway operations to control train movements by issuing and retrieving tokens that authorize trains to proceed on a specific section of track.

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Who can operate the Token Instrument?

Only the Station Master on duty has the authority to remove or place a Token in the instrument.

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What are the Token Instrument's Safety Features?

A Token can only be removed from the instrument if a Private Numbers signal is received, and a Loco Pilot must receive the Token in its sealed pouch, indicating the track is clear.

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Irregular Bell Ringing or Galvanometer Movement

These indicate a potential issue with the line's electrical continuity, triggering immediate suspension of Token Working and implementation of paper Line Clear Working.

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Unauthorized Token Instrument Operation?

If there's reason to believe the instrument is being used improperly or by an unauthorized person, the Station Master must suspend Token Working and implement paper Line Clear Working.

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Code of Bell Signals

A set of pre-defined signal combinations using a bell to communicate specific information between railway staff, such as line clear, train entering, train leaving, etc.

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Call Attention & Attend Telephone

Bell signal '0' (one stroke)

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Line Clear/Line Clear Enquiry

Bell signal '00' (two strokes)

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Train Entering Section

Bell signal '000' (three strokes)

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Token Found After Restoration

If a lost Token is found after the signalling equipment is repaired, it is put in a sealed paper cover and stored in the station safe until the Signalling Inspector can retrieve it.

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Token Found At Wrong Station

If a Token is discovered at a station where it doesn't belong, it is secured and sent to the Divisional Railway Manager of the relevant section.

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Electrical Block Failure

When the electric signalling system fails, trains are passed using a 'Paper Line Clear' obtained through various communication methods like phone or VHF.

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Reporting Signalling Failures

Any failure in the electrical block system must be reported to various personnel including the Divisional Railway Manager and Assistant Signal and Tele-communication Engineer.

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Line Clear Communication

During communication failures, messages for passing trains are transmitted through a control telephone. Station Masters need to provide details of the last two trains' arrival/departure times for safety.

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Runaway Vehicle Signal

When a train loses control, the Station Master alerts the next station about the runaway train by repeating the signal. This helps prepare the next station to handle the situation.

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Testing Signal Purpose

The 'Testing Signal' is used by the Block Maintenance staff to check if the signaling equipment, like block instruments, are working correctly. The Station Master confirms the signal.

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Token for Stopping Train

The 'Is Line Clear' signal is not sent for a stopping train until it has received the 'Train Entering Section' signal, meaning the train is within the block section.

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Token for Through Train

For trains booking to run through a station, the 'Is Line Clear' signal can be sent up to five minutes before the departure time, even before the 'Train Entering Section' signal.

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Station Master's Responsibility - Token Delivery

The Station Master ensures the correct token for the next section is given to the Loco Pilot, ensuring the train has the right authorization to proceed.

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Token Verification

When receiving an incoming token, the Station Master must check if it's the correct one for the specific block section and record its number in the register.

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Token Handling Rules

A token can only be given to the Loco Pilot after it's obtained from the instrument following the laid down rules. This ensures proper authorization and safety.

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Token Knowledge for Staff

Every member of the Station Master's staff who handles tokens must be familiar with the different tokens of the adjoining sections.

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Canceling Line Clear

If, after sending the 'Line Clear' signal, the conditions change, the token must be returned to the instrument, and the signal reset, following the proper procedures.

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Signal Reset - Line Clear Canceled

When canceling 'Line Clear,' the token is placed back in the instrument and the control handle is returned to its normal position in accordance with the signaling procedures.

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Class 'B' Station

All single line stations on the Eastern Railway are classified as 'B' class.

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Token Operation Rules

A token can only be removed from the instrument if a Private Numbers signal is received, and a Loco Pilot must receive the Token in its sealed pouch, indicating the track is clear.

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Dangerous Conditions

Conditions that could endanger trains or people on the railway line, such as a vehicle on fire, a hot axle box, or a carriage door opening outward.

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Station Master's Role

The Station Master and their staff are responsible for observing trains passing their stations, identifying any defects, and taking immediate action to stop the train if necessary.

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Stop and Examine Train Signal

The Station Master sends this signal to the next station to advise them to stop and examine the train for any damage or injury.

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Adjacent Line Fouling

When a train with a dangerous condition may obstruct the tracks, preventing other trains on the adjacent lines from passing safely.

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Preventing Fouling

The Station Master receiving the signal to stop and examine must take all necessary measures to prevent the train from fouling adjacent lines and stop any trains heading towards the affected line.

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Affected Train Examination

Once the affected train is stopped, it must be carefully examined to assess the damage and determine the appropriate course of action.

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Block Section Control

The Station Master at either end of the block section is responsible for ensuring no trains are allowed to pass on adjacent lines until the affected train is completely stopped and examined.

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Station Master's Responsibility

The Station Master is responsible for ensuring the safety of passengers and trains, preventing fouling, and taking appropriate actions when detecting irregularities on the line.

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Train Passed without Tail Lamp

A signal indicating a train passed without a required tail lamp. It prevents the "Train out of Section" signal from being sent until the train is stopped and inspected.

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Train Divided

A signal used when a train splits into multiple sections. The first section is allowed into the station, and the "Train out of Section" signal is not sent until all sections are accounted for.

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Vehicles Running Away

A critical signal used if a vehicle or train is out of control or enters a block section without authorization. All signals are set to 'ON', and the runaway vehicles are stopped.

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What happens when a "Train Divided" signal is sent?

The Station Master receiving the signal allows the first portion of the train into the station. They then ensure all portions of the train are accounted for before sending the "Train out of Section" signal.

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What actions are taken when receiving a "Vehicles Running Away" signal?

The Station Master sets all signals to 'ON' to prevent further trains from entering the section. They also take steps to stop the runaway vehicles by reversing points and using other safety measures.

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What happens if a train passes without the correct signal?

The Station Master at the station in advance will have to issue the 'Train Passed without Tail Lamp' signal to the preceding station. They will then stop the train and check if it is complete.

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What is the purpose of the "Train Passed without Tail Lamp" signal?

This signal ensures that a train missing a tail lamp is stopped and inspected before it can proceed. It prevents the train from entering the next section until the issue is resolved.

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What happens when a train leaves a station in multiple portions?

The Station Master at the departing station receives the 'Train Divided' signal. They allow the first portion of the trein into the station and ensure all portions of the train are accounted for before sending the "Train out of Section" signal.

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What is the primary concern when receiving the "Vehicles Running Away" signal?

The primary concern is to prevent the runaway vehicles from causing harm or colliding with other trains. So, the Station Master immediately takes action to protect the line and stop the runaway vehicles.

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Token/Tablet Exchange

When a Token/tablet is returned to the instrument from which it was extracted, Private Numbers are exchanged and a record is made in the Train Signal Registers at both stations. This confirms the section is clear and the train has completed its journey.

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What is a 'Testing Signal'?

The 'Testing Signal' is used by the Block Maintenance staff to check if the block instruments and other signaling equipment are working correctly.

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Station Master's Role in Token Return

If a Token/tablet has to be returned due to a train's return (like a Divisional Material Train), the Station Master returns the Token, sends the “Train out of Section” signal, and then resets the operating handle to the normal position, following the correct signaling procedures.

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Refusing Line Clear

When a Station Master is asked for a Private Numbers signal but wants to give priority to a more important train, they inform the other station, and a record is made in the Train Signal Registers at both stations.

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Requirements for Entering a Block Section

No train can enter a Block section without a valid Token/tablet in the Loco Pilot's possession, unless there's a system failure or a train is assisting another.

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Token/Tablet Handling during Disabled Train

When a train is disabled and a part remains in the section, the Loco Pilot must hand the Token/tablet to the Guard before proceeding, ensuring the section is still controlled.

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How are incoming tokens verified?

The Station Master must check if the received Token is the correct one for the specific block section and then record its number in the Train Signalling Register.

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What happens when 'Line Clear' is canceled?

If 'Line Clear' is canceled, the Token must be returned to the instrument and the Operating Handle returned to its normal position, following signaling procedures.

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What does the 'Runaway Vehicle Signal' mean?

When a train loses control, the Station Master alerts the next station about the runaway train by repeating the signal.

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Study Notes

Rules and Regulations for Single Line Working

  • Station Classes: All single line stations on the Eastern Railway are 'B' class.
  • Line Clear Conditions: A line is not considered clear at a Class 'B' station unless the preceding train has arrived complete, all necessary signals have been placed to 'on', and the line is clear. Clear conditions include checks at stations with two-aspect signaling or modified lower quadrant signaling. These checks involve signals, shunting limits, stop points, and distance considerations.
  • Approach Train Obstruction: For trains with two-aspect signals, the line outside the home signal can only be obstructed when a shunting board or advanced starter is in place, following specific instructions taking into consideration the train speed, weight, and brakes, the gradients, and visible distance at which the outer signal can be seen by the driver. The situation is similar for trains on stations with manually operated multiple aspect signals.
  • Obstruction Within Station Section: Shunting can be carried out in sections equipped with two-aspect signals, if necessary signals are on, either between shunting boards or advanced starters, or between home signals or advanced starters
  • Obstruction Outside Station Section: The line between the station section and the outer signal for class 'B' stations with two-aspect signals shall not be obstructed unless a designated railway employee is in charge of the processes.. This does not apply if a train has arrived at the outer signal, in which case the station master must ensure the train has come to a stop
  • Blocking Back Procedure: The station master at a shunting station uses the telephone to inform the next station, stating they are blocking back the section. They also respond to messages that the section is ready to re-open by also using the telephone to inform the next station
  • Token Instrument Procedures: The Station Master is solely responsible for the token, ensuring its proper handling and placement.
  • Acknowledgement of Signals: All signals received must be acknowledged. A signal isn't considered complete until acknowledged, and a failure to acknowledge requires repeating the signal.
  • Code of Bell Signals: A set of specific codes and methods of signaling that aid in single-line operations and signaling are provided and defined for use.
  • Wrong Tokens: Incorrect tokens must be carefully noted and returned to the original station master, with supporting documentation required. A detailed report must be written by the loco pilot.
  • Exchange Methods: Specific instructions are provided for exchanging tokens using different methods for stopping and non-stopping trains..
  • Token Transferring: If there are not enough tokens available, the appropriate procedures are described to facilitate token transfer.
  • Interruption of Token Working: Specific procedures are laid out if there's a problem with token working.
  • Failure of Electrical Equipment: Procedures for reporting failures of electrical block and speaking systems are detailed
  • Reporting Failures: Procedures for reporting failures of electrical equipment are contained within the document.

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