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Train Driver > Examining the Line, OLE, Bridges and Adverse Weather > Flashcards

Examining the Line, OLE, Bridges and Adverse Weather Flashcards

1
Q

What might you be asked to examine the line for?

A

Track defects, objects or obstructions that could prevent the usual movement of trains

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2
Q

How would you be informed if you are required to examine the line?

A

Informed by signaller on the move.

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3
Q

If the signaller was unable to clear a signal due to the potential defect, what might you be authorised to do?

A

PSAD

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4
Q

What must you reach with the signaller before examining the line?

A

Clear understanding on what you are looking for & the affected portion of track

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5
Q

How must you proceed when examining the line?

A

Proceed at caution and follow any instructions

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6
Q

How must you proceed when examining an affected portion inside a tunnel?

A

Max. 10mph

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7
Q

How must you proceed when examining for a suspected track defect?

A

Max. 20mph

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8
Q

When must you be accompanied when examining the line?

A

When in the dark, in poor visibility or in a tunnel

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9
Q

Can you examine the line with failed headlights?

A

No, do not examine the line unless a bardic is fitted

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10
Q

Who might be asked to examine the OLE?

A

Diesel trains

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11
Q

When must you be accompanied when examining the OLE?

A

In the dark/poor visibility/in a tunnel

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12
Q

How must you proceed when examining the OLE?

A

Max. 20mph

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13
Q

If you are asked to determine if the OLE is safe for trains to proceed using own tractive power/coast underneath with pantograph lowered, what criteria must be met?

A
  • Obstruction not more than 6 inches below contact wire (sagging=dangerous)
  • No more than 2 consecutive droppers have come off
  • Object/defect is more than 3 OLE structures away from tunnel or overbridges

If all of above apply, safe to pass

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14
Q

If your train has caused sequential tripping, what may you be asked to do?

A

Examine the OLE

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15
Q

How must you examine the OLE, if possible?

A

Without leaving train/via CCTV

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16
Q

What must you consider before leaving your train to examine the OLE?

A

Always consider conditions before leaving the train and only leave with permission from the signaller. Ensure no OLE in vicinity of door before leaving

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17
Q

What are your actions if the conditions change when examining the OLE from outside of your train?

A

Stop and return to the train immediately. Do not continue your examination until OLE switched off.

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18
Q

How should you always treat OLE?

A

As live and dangerous (even if switched off)

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19
Q

What is an overbridge?

A

Where traffic travels over the railway with trains underneath

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20
Q

What is an underbridge?

A

Where traffic travels under the railway with trains on the bridge itself

21
Q

What might bridge strikes result in?

A

ESRs/TSRs being imposed- do not accelerate until whole train leaves bridge

22
Q

If you are examining a bridge after a strike, how must you proceed?

A

Max. 5mph and do not pass under if unsafe:
- Stop train
- Check for obvious damage/debris on line
- Tell signaller if safe for passage of trains

23
Q

What depth of snow must be reported to the signaller?

A

If snow deeper than 8 inches above railhead

24
Q

What speed must you travel at in snow?

A

Line speed (unless in disc brake trains) but drive to conditions

25
Q

What is there a risk of when temperatures drop below 0 degrees?

A

Frozen brakes

26
Q

What must be done when snow is falling, fallen snow is being disturbed and blown into undercarriage of train or in freezing conditions?

A

Extra running brake tests

27
Q

What brake step must be used initially when performing a running brake test in snow?

A

Step 3- no need to test any other brake steps

28
Q

Why is an initial step 3 application required only?

A

To generate heat and test braking performance of unit

29
Q

How regularly do running brake tests need to be conducted in snow?

A

Every 3-5 minutes

30
Q

How regularly do running brake tests need to be conducted in freezing conditions?

A

Every 2-3 minutes

31
Q

When driving a disc brake train in snow, how must you carry out a running brake test?

A

Travel at 10mph below line speed (no need to go less than 50mph) then RBT in step 3 to reduce speed by further 10mph - if brakes operate normally, return to initial reduced speed

32
Q

When driving a tread brake train in snow, how must you carry out a running brake test?

A

Travel at line speed. RBT in step 3 to reduce speed by 10mph, if brakes operate normally, return to line speed.

33
Q

What are your actions if a tread brake train is coupled to a disc brake train in snow?

A

Travel at 10mph below line speed (no need to go less than 50mph). RBT in step 3 to reduce by 10mph.

34
Q

When must flood water be reported to the signaller immediately?

A

Where flood water is affecting the running of trains

35
Q

If flood water is affecting the running of trains, how must you report this to the signaller?

A

Via an emergency call

36
Q

What must you confirm to the signaller when you believe that flood water is affecting the running of trains?

A

If flood water has or is likely to move ballast.

37
Q

What depths of water must be reported to the signaller?

A

When flood water reaches the bottom of the railhead or surpasses it.

38
Q

What speed can trains travel at if flood water reaches bottom of railhead?

A

Line speed

39
Q

What speed can trains travel at if flood water reaches top of railhead?

A

5mph

40
Q

What speed can trains travel at if flood water surpasses top of railhead?

A

Services suspended

41
Q

What speed can you travel at in fog?

A

At line speed but slow down if you lose bearings

42
Q

What issue can headlights present in fog?

A

Can produce glare but must remain switched on (to be seen, not to see)

43
Q

What speed restrictions apply if your AWS is isolated in fog?

A

40mph with or without competent person present

44
Q

What might be implemented when there are strong winds?

A

Blanket speed restrictions

45
Q

How would you be notified of blanket speed restrictions?

A

In the Late Notice Case/on the move via area broadcast

46
Q

What are your actions if you believe there to be a track defect?

A

Report to the signaller immediately

47
Q

What information must you provide to the signaller if reporting a suspected track defect?

A

Location, whether close to a bridge or viaduct and any other information.

48
Q

How should you describe the track defect?

A

As a defect that is seen (definitely broken), a defect that is felt (unusual movement of train- lurch, dip, shaking) or a defect that is heard (bang, rattle or grinding)

Train Driver (31 decks)

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