Single line working Issue 8 Flashcards
What is the principle of single line working?
When one line of a double line becomes blocked, single line working by pilot allows trains to travel over the other line in either direction.
Who appoints the pilot for single line working?
The Network Rail area operations manager.
What must the pilot wear to identify themselves?
A red armlet with PILOT in white letters.
What is required before introducing single line working?
A clear understanding must be reached with the signaller and any other signaller involved about the arrangements.
What form must the pilot complete at the agreed time?
Pilot’s Single Line Working Form (RT3191).
What must the signaller do when the pilot dictates details?
Complete a Signaller’s Single Line Working Form (RT3192) and make a suitable entry in the Train Register.
What must the pilot ensure regarding protection for the obstructed line?
There must be enough room between the crossover and any protection placed for the obstructed line.
What should be arranged for additional protection for the obstructed line?
A possession limit board, a red flag during daylight, or a red light during darkness.
What should the pilot not introduce if the obstructed line is protected under a line blockage?
Single line working if the line blockage protection is in the same signal section as the crossover.
True or False: Signals on the unobstructed line should be worked normally wherever possible.
True.
What is required for controlling wrong-direction movements?
Instructions must be given to the pilot and handsignallers, ensuring they understand what to tell drivers.
When is a handsignaller not required for wrong-direction movements?
If a main aspect signal is provided at the crossover or if the pilot travels with every train over the single line.
Fill in the blank: At an AHBC under local control, a _______ is required for the driver to proceed.
Green hand signal.
What must the pilot ensure during poor visibility?
Position a handsignaller to control wrong-direction movements back to the proper line unless a main aspect signal is provided.
What must be done if points are unworked on the single line?
They must be secured and padlocked for the safety of movements over them.
Who must be informed about single line working arrangements?
The person in charge of any station affected and personnel working on or near the line.
What must the pilot do before allowing single line working to start?
Ensure all arrangements have been made and inform each signaller.
What must the pilot do before authorizing movements that enter the single line?
Tell the driver over which line the single line working applies and between which crossovers.
What should be done at CCTV, OD or RC level crossings with no attendant appointed?
Instruct the driver to approach the crossing at caution and pass over it only if safe.
What is the maximum speed limit over mechanically operated points?
15 mph (25 km/h).
What must the pilot remind the driver about before movements?
Any temporary speed restrictions.
What is the maximum speed allowed over points, switch diamonds, or swing-nose crossings?
15 mph (25 km/h)
This speed limit applies unless otherwise specified.
What information must be communicated to the driver regarding speed restrictions?
Temporary and emergency speed restrictions
This includes any restrictions affecting the single line and the proper line.
What is the purpose of the Driver’s Single Line Working Ticket (RT3193)?
To provide the driver with necessary instructions for single line working
Not required for specific scenarios such as assisting a failed train.
What must the pilot do before allowing an intermediate signal box to open?
Dictate a single line working form to the signaller
What should the pilot do upon arrival at the other end of the single line?
Collect the cancelled driver’s ticket and inform the signaller of arrival
When is it necessary for the pilot to ride with the driver?
Unless there is another train to follow
What speed must not be exceeded during wrong-direction movements?
50 mph (80 km/h) or the permissible speed if lower
What must the driver do before entering the single line?
Identify the pilot and understand all instructions given
True or False: The train movement in the wrong direction will always be controlled by handsignals.
True
What should the pilot do if the first train over the single line is not accompanied?
Cancel the driver’s ticket and inform those working on or near the line
What is required when both lines of a double line are blocked?
Introduce single line working arrangements over one line only
What protection must be provided where trains have to stop on approach to an obstruction?
A signal kept at danger or emergency protection
How should trains running in the normal direction be managed during single line working?
Travel over an unobstructed line that is not being used for single line working
What must the signaller do if the single line working arrangements have not been published?
Inform the driver of each train that trains on the adjoining line may be running in the opposite direction
What should the pilot do if assistance is required for a failed train?
Inform the signaller and arrange for assistance
What steps must be taken when withdrawing single line working?
Tell each signaller, withdraw handsignallers, release secured points
What authority is needed to withdraw single line working?
Only the pilot can authorize the withdrawal
What must the pilot do after being relieved?
Ensure the new pilot understands single line working arrangements
Fill in the blank: The pilot must arrange for ______ to be withdrawn when the last train is clear of the single line.
handsignallers
What must drivers do when approaching level crossings not fitted with wrong-direction controls?
Follow the pilot’s instructions
What must be done before allowing an up train to leave location A in conflicting movements?
Ensure the line is clear to a specified distance beyond the handsignaller
What must you tell the person in charge at any station where the platform working was affected?
You must inform them that single line working has been withdrawn and whether the obstructed line is open or is to stay blocked.
What arrangements must be made for crossing keepers affected by single line working?
You must inform them that single line working has been withdrawn and whether the obstructed line is open or is to stay blocked.
What should be done if the crossing keeper cannot be told directly?
Arrange for the driver of the first train through the section to stop at the crossing and inform the crossing keeper.
What must the driver of the first train do after single line working is withdrawn?
Stop and inform anyone working on or near the line that single line working has been withdrawn and whether the obstructed line is open or is to stay blocked.
When is it not necessary to inform personnel working on or near the line about the withdrawal of single line working?
If the single line working is published in the Weekly Operating Notice and the details have not changed.
Who must be informed that single line working has been withdrawn if work on the obstructed line is to continue?
The individual working alone (IWA), controller of site safety (COSS), or safe work leader (SWL) must be informed.
What are the steps to resume normal working after single line working arrangements have been withdrawn?
Tell each signaller to cancel their form, confirm cancellation, and cancel your pilot’s form.
What must a signaller do before allowing normal working to resume?
Cancel their signaller’s form and inform the pilot.
What should be done if single line working was introduced on both sides of an obstruction?
Do not resume normal working until told by the pilots on both sides that single line working is withdrawn.
What entry must be made in the Train Register?
A suitable entry regarding the cancellation of single line working must be made.
What must the driver of the first train through the section do if instructed by the signaller?
Stop to inform anyone working on or near the line that single line working has been withdrawn and whether the obstructed line is open or is to stay blocked.
Fill in the blank: You must also stop and tell any _______ if instructed.
[crossing keeper]
