SIGNAL IRREGULARITIES

Question 1

What is a signalling irregularity?

Answer 1

It is when a signal cannot be viewed correctly or is showing an incorrect indication.

Question 2

When would you inform the signaller of a failure or irregularity that applies to another train, affecting another line?

Answer 2

At the first convenient opportunity.

Question 3

What boards/indicator signs would you see? 5 answers

Answer 3

A limit of shunt
A shunt entry board
A start of cab signalling board
An end of cab signalling board
Stop boards

Question 4

What is a right-side failure?

Answer 4

If a signal or safety system fails safe.

Question 5

What is a wrong-side failure?

Answer 5

When a signal or safety system fails in a way that poses as a risk.

Question 6

Given an example of a right-side failure.

Answer 6

Receiving an AWS warning horn when the signal is showing a green proceed aspect.

Question 7

Give an example of a wrong-side failure.

Answer 7

Recieving an AWS bell against a yellow or red aspect or recieving no warning bell at all.

Question 8

Once you’ve reported the signalling failure, what will the signaler instruct you to do?

Answer 8

Instruct you on how to proceed and inform you of the state of the signal if necessary.

Question 9

What will the signaller do with the next approaching train?

Answer 9

Warn the next approaching train and report the state of the signal to that driver.

Question 10

What happens if the next driver repots that the signal is not difficult for them to see?

Answer 10

Trains will be able to continue normally.

Question 11

What form is required to report an AWS, ERTMS or TPWS failure or irregularity?

Answer 11

RT3185

Question 12

How do you hand in an RT3185 form?

Answer 12

Directly to your manager at the end of the working day.

Question 13

Under what circumstances would you not be required to immediately fill out an RT3185 form?

Answer 13

If the signaller can tell you if the fault is a right-side failure
When the signaller can explain why it is a right-side failure

Question 14

With regards to the AWS, you must immediately tell the signaller (stopping the train), under what circumstances?

Answer 14

If you receive an AWS clear indication when it should have been a warning indication
If you do not receive any AWS warning indication when a warning should have been received

Question 15

What must you do if your train has been signalled towards the wrong route?

Answer 15

You must stop the train (safely) asap and tell the signaller.

Question 16

If a signal is not showing (or not showing correctly), what must you consider about the signals?

Answer 16

Consider a stop signal to be at danger

Consider a distant signal to be at caution

Question 17

If a position-light or subsidiary signal is cleared but the normal route indication is not shown, what must you be prepared to do?

Answer 17

Make the movement at caution

Be prepared to stop the train before you reach any obstruction

Question 18

What fault code is an AWS clear indication when you should have received a warning indication?

Answer 18

Fault code 5

Question 19

What fault code do you use when you do not receive any AWS indication when a warning indication should have been recieved?

Answer 19

Fault code 7