TP

Question 1

What 5 occasions will you receive a TPWS brake demand?

Answer 1

Passed a signal at danger without authority
Travelling too fast approaching: signal at danger / buffer stops / PSR
Late to cancel AWS warning

Question 2

If you have had an EBA not initiated by your own actions, what is the first thing you should check?

Answer 2

Brake Demand indicator on the TPWS panel to see if it is flashing red

Question 3

If TPWS has initiated an EBA, what must you then do?

Answer 3

Stop and secure the train
Acknowledge by pressing the AWS button (on the standard panel)
Contact signaller immediately and inform them what has happened
Follow all instructions
Complete RT 3185 immediately
Do not move unless authorised by the signaller

Question 4

How would a SPAD be indicated on
1. Standard TPWS panel
2. Enhanced TPWS panel

Answer 4

1 = Red flashing brake demand indicator
2 = SPAD indicator flashes red, audible alarm

Question 5

How would an AWS late to cancel be indicated on
1. Standard TPWS panel
2. Enhanced TPWS panel

Answer 5

1 = Red flashing brake demand indicator, constant AWS audible alarm
2 = AWS indicator flashes yellow, constant AWS audible alarm

Question 6

How would an Overspeed event be indicated on
1. Standard TPWS panel
2. Enhanced TPWS panel

Answer 6

1 = Red flashing brake demand indicator
2 = Overspeed indicator flashes yellow, audible alarm

Question 7

How would you report a TPWS brake demand to the signaller?

Answer 7

“I have had a TPWS brake demand, due to xxxxx”

Question 8

On a standard TPWS panel, what will happen to the brake demand indicator once you press the AWS button?

Answer 8

Goes steady red

Question 9

On a standard TPWS panel, how long does the brake demand indicator stay illuminated if the AWS button is pressed?

Answer 9

60 seconds

Question 10

On an enhanced TPWS panel, if you are late to cancel the AWS warning, how do you make the indicator go from flashing to steady yellow?

Answer 10

By pressing the AWS button

Question 11

On an enhanced TPWS panel, how can you silence the audible warning for a SPAD and Overspeed, and what happens when you do this?

Answer 11

By pressing the relevant SPAD or Overspeed indicator…. The flashing indicator light goes steady when you do this

Question 12

On an enhanced TPWS panel, how long will it take before you are able to reset the TPWS?

Answer 12

60 seconds

Question 13

Whose permission must you have before resetting the TPWS?

Answer 13

Signaller (except approaching a buffer stop)

Question 14

How do you reset the TPWS on:
1. Standard TPWS panel
2. Enhanced TPWS panel

Answer 14

1 = Brake release is obtained 60 seconds after acknowledging the EBA (by pressing the AWS button as appropriate)
2 = By pressing the Brake Release simultaneously with the appropriate SPAD/Overspeed indicator, after 60 seconds)

Question 15

What forms do you complete immediately after a TPWS brake demand?

Answer 15

RT 3185
Incident report form

Question 16

If you have an EBA and there are no indications on the TPWS panel, what must you do?

Answer 16

Stop and secure the train
Determine why there was an EBA
Speak to the signaller to inform them what has happened and obtain permission to resume journey

Question 17

How would you report an EBA that did not involve TPWS?

Answer 17

“I have had an EBA that was not initiated by TPWS.”
Report this to the signaller, complete incident report and hand to DM

Question 18

If you’ve had an EBA that did not involve TPWS, what possible reasons could there be for this?

Answer 18

Loss of main air pressure
Guard may have operated an emergency plunger
PEA operated
MCB tripped

Question 19

What is meant by the term “reset and go”?

Answer 19

Keying out and back in again to clear the TPWS fault, without following the correct procedures

Question 20

What could you do to reduce the risk of having a TPWS event approaching a red signal?

Answer 20

60-40-20 rule
Risk triggered commentary
Kill you speed when you’ve had a cautionary aspect
Target fix signal to ensure no loss of focus

Question 21

What could you do to reduce the risk of having a SPAD?

Answer 21

Maintain concentration
Not driving if fatigued or unwell
Having good communication with the signaller
Risk triggered commentary
60-40/20 rule
Kill you speed early and target fix the red signal so you don’t lose focus

Question 22

What can you do to prevent having a TPWS event approaching buffer stops?

Answer 22

Ensure speed below 15mph at platform ramp
Ensure speed below 10mph at the grids (I.e aim for 7-8mph)