Single line working Issue 8

Question 1

What is the principle of single line working?

Answer 1

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.

Question 2

Who appoints the pilot for single line working?

Answer 2

The Network Rail area operations manager.

Question 3

What must the pilot wear to identify themselves?

Answer 3

A red armlet with PILOT in white letters.

Question 4

What is required before introducing single line working?

Answer 4

A clear understanding must be reached with the signaller and any other signaller involved about the arrangements.

Question 5

What form must the pilot complete at the agreed time?

Answer 5

Pilot’s Single Line Working Form (RT3191).

Question 6

What must the signaller do when the pilot dictates details?

Answer 6

Complete a Signaller’s Single Line Working Form (RT3192) and make a suitable entry in the Train Register.

Question 7

What must the pilot ensure regarding protection for the obstructed line?

Answer 7

There must be enough room between the crossover and any protection placed for the obstructed line.

Question 8

What should be arranged for additional protection for the obstructed line?

Answer 8

A possession limit board, a red flag during daylight, or a red light during darkness.

Question 9

What should the pilot not introduce if the obstructed line is protected under a line blockage?

Answer 9

Single line working if the line blockage protection is in the same signal section as the crossover.

Question 10

True or False: Signals on the unobstructed line should be worked normally wherever possible.

Answer 10

True.

Question 11

What is required for controlling wrong-direction movements?

Answer 11

Instructions must be given to the pilot and handsignallers, ensuring they understand what to tell drivers.

Question 12

When is a handsignaller not required for wrong-direction movements?

Answer 12

If a main aspect signal is provided at the crossover or if the pilot travels with every train over the single line.

Question 13

Fill in the blank: At an AHBC under local control, a _______ is required for the driver to proceed.

Answer 13

Green hand signal.

Question 14

What must the pilot ensure during poor visibility?

Answer 14

Position a handsignaller to control wrong-direction movements back to the proper line unless a main aspect signal is provided.

Question 15

What must be done if points are unworked on the single line?

Answer 15

They must be secured and padlocked for the safety of movements over them.

Question 16

Who must be informed about single line working arrangements?

Answer 16

The person in charge of any station affected and personnel working on or near the line.

Question 17

What must the pilot do before allowing single line working to start?

Answer 17

Ensure all arrangements have been made and inform each signaller.

Question 18

What must the pilot do before authorizing movements that enter the single line?

Answer 18

Tell the driver over which line the single line working applies and between which crossovers.

Question 19

What should be done at CCTV, OD or RC level crossings with no attendant appointed?

Answer 19

Instruct the driver to approach the crossing at caution and pass over it only if safe.

Question 20

What is the maximum speed limit over mechanically operated points?

Answer 20

15 mph (25 km/h).

Question 21

What must the pilot remind the driver about before movements?

Answer 21

Any temporary speed restrictions.

Question 22

What is the maximum speed allowed over points, switch diamonds, or swing-nose crossings?

Answer 22

15 mph (25 km/h)

This speed limit applies unless otherwise specified.

Question 23

What information must be communicated to the driver regarding speed restrictions?

Answer 23

Temporary and emergency speed restrictions

This includes any restrictions affecting the single line and the proper line.

Question 24

What is the purpose of the Driver’s Single Line Working Ticket (RT3193)?

Answer 24

To provide the driver with necessary instructions for single line working

Not required for specific scenarios such as assisting a failed train.

Question 25

What must the pilot do before allowing an intermediate signal box to open?

Answer 25

Dictate a single line working form to the signaller

Question 26

What should the pilot do upon arrival at the other end of the single line?

Answer 26

Collect the cancelled driver’s ticket and inform the signaller of arrival

Question 27

When is it necessary for the pilot to ride with the driver?

Answer 27

Unless there is another train to follow

Question 28

What speed must not be exceeded during wrong-direction movements?

Answer 28

50 mph (80 km/h) or the permissible speed if lower

Question 29

What must the driver do before entering the single line?

Answer 29

Identify the pilot and understand all instructions given

Question 30

True or False: The train movement in the wrong direction will always be controlled by handsignals.

Answer 30

True

Question 31

What should the pilot do if the first train over the single line is not accompanied?

Answer 31

Cancel the driver’s ticket and inform those working on or near the line

Question 32

What is required when both lines of a double line are blocked?

Answer 32

Introduce single line working arrangements over one line only

Question 33

What protection must be provided where trains have to stop on approach to an obstruction?

Answer 33

A signal kept at danger or emergency protection

Question 34

How should trains running in the normal direction be managed during single line working?

Answer 34

Travel over an unobstructed line that is not being used for single line working

Question 35

What must the signaller do if the single line working arrangements have not been published?

Answer 35

Inform the driver of each train that trains on the adjoining line may be running in the opposite direction

Question 36

What should the pilot do if assistance is required for a failed train?

Answer 36

Inform the signaller and arrange for assistance

Question 37

What steps must be taken when withdrawing single line working?

Answer 37

Tell each signaller, withdraw handsignallers, release secured points

Question 38

What authority is needed to withdraw single line working?

Answer 38

Only the pilot can authorize the withdrawal

Question 39

What must the pilot do after being relieved?

Answer 39

Ensure the new pilot understands single line working arrangements

Question 40

Fill in the blank: The pilot must arrange for ______ to be withdrawn when the last train is clear of the single line.

Answer 40

handsignallers

Question 41

What must drivers do when approaching level crossings not fitted with wrong-direction controls?

Answer 41

Follow the pilot’s instructions

Question 42

What must be done before allowing an up train to leave location A in conflicting movements?

Answer 42

Ensure the line is clear to a specified distance beyond the handsignaller

Question 43

What must you tell the person in charge at any station where the platform working was affected?

Answer 43

You must inform them that single line working has been withdrawn and whether the obstructed line is open or is to stay blocked.

Question 44

What arrangements must be made for crossing keepers affected by single line working?

Answer 44

You must inform them that single line working has been withdrawn and whether the obstructed line is open or is to stay blocked.

Question 45

What should be done if the crossing keeper cannot be told directly?

Answer 45

Arrange for the driver of the first train through the section to stop at the crossing and inform the crossing keeper.

Question 46

What must the driver of the first train do after single line working is withdrawn?

Answer 46

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.

Question 47

When is it not necessary to inform personnel working on or near the line about the withdrawal of single line working?

Answer 47

If the single line working is published in the Weekly Operating Notice and the details have not changed.

Question 48

Who must be informed that single line working has been withdrawn if work on the obstructed line is to continue?

Answer 48

The individual working alone (IWA), controller of site safety (COSS), or safe work leader (SWL) must be informed.

Question 49

What are the steps to resume normal working after single line working arrangements have been withdrawn?

Answer 49

Tell each signaller to cancel their form, confirm cancellation, and cancel your pilot’s form.

Question 50

What must a signaller do before allowing normal working to resume?

Answer 50

Cancel their signaller’s form and inform the pilot.

Question 51

What should be done if single line working was introduced on both sides of an obstruction?

Answer 51

Do not resume normal working until told by the pilots on both sides that single line working is withdrawn.

Question 52

What entry must be made in the Train Register?

Answer 52

A suitable entry regarding the cancellation of single line working must be made.

Question 53

What must the driver of the first train through the section do if instructed by the signaller?

Answer 53

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.

Question 54

Fill in the blank: You must also stop and tell any _______ if instructed.

Answer 54

[crossing keeper]