SAFETY CRITICAL COMMS

Question 1

What are the primary communication methods used in safety-critical situations?

Answer 1

• Radio handset
• Radio dispatcher
• PA system

Question 2

What are the secondary communication methods in safety-critical communications?

Answer 2

• Mobile
• Passenger Alarm (platforms and trains)
• Passenger Alarm microphone
• Passenger Alarm telephone
• Tunnel phones
• Bank Headshunt Telephone
• Lift Alarm
• On Train Public Address System
• On Train Radio

Question 3

True or False: All communications on the railway are safety-critical and formal.

Answer 3

True

Question 4

What should you do to ensure effective communication before duty?

Answer 4

• Ensure all communication equipment works
• Note relevant contact info & other devices available
• Ensure on correct radio channel number
• Adjust suitable volume level

Question 5

List three things you should NOT do when using communication equipment.

Answer 5

• Leave your mobile unattended
• Use it for purposes not intended
• Swear or act unprofessional

Question 6

What does the proword ‘Over’ signify?

Answer 6

End of my transmission, expecting a reply

Question 7

What is the meaning of the proword ‘Correction’?

Answer 7

Disregard message, correct message to follow

Question 8

What is the emergency proword for an emergency transmission?

Answer 8

Emergency, must be repeated 3 times

Question 9

What does a single beep after 20 seconds of transmission indicate?

Answer 9

10 seconds left

Question 10

What is Code Silver used for?

Answer 10

Delays or part suspension of Jubilee line impacting DLR

Question 11

What does HOT stand for in the HOT procedure?

Answer 11

• Hidden
• Obvious
• Typical

Question 12

What should you do if an item meets all three criteria of the HOT procedure?

Answer 12

Move yourself and others away

Question 13

What is meant by ‘CODE external’?

Answer 13

Incident off DLR that may impact DLR. Stay vigilant.

Question 14

What is the purpose of the NOVEMBER ECHO code?

Answer 14

Used by all new PSA when speaking to control until probation is completed

Question 15

What does the left side top button on the radio do?

Answer 15

Press to call Control Centre

Question 16

What information must be confirmed before entering the depot, worksite, or going trackside?

Answer 16

• Location
• Party size
• Power status
• Purpose
• Agreed walking routes
• Protection if required
• Train and point movements

Question 17

What is the emergency radio call structure?

Answer 17

Depress emergency button, state: EMERGENCY, EMERGENCY, EMERGENCY

What you require
Where?
Why?

Question 18

What is the purpose of the communication skills acronym ABC?

Answer 18

To ensure communication is accurate, brief, clear, and controlled

Question 19

What are the three communication styles?

Answer 19

• Passive
• Assertive
• Aggressive

Question 20

What should be done if all communications fail while on a train?

Answer 20

Continue to the next station, secure the train, and use station equipment to contact Control Centre

Question 21

Fill in the blank: The _______ is used to broadcast messages and requires a carriage key to operate.

Answer 21

Passenger Alarm Microphone

Question 22

What is CODE PURPLE?

Answer 22

Delays, part of full suspension to Elizabeth line that may impact DLR and may require control crowd measures

Question 23

What is CODE ROYAL?

Answer 23

Delays, part or full suspension on both Jubilee and Elizabeth line that may impact the DLR and require control measures

Question 24

What does INCIDENT on the SYSTEM mean?

Answer 24

Fire/smoke somewhere on the system

Question 25

What does RADIO CHECK mean and when should it be done?

Answer 25

Reports how you receive transmission and must be completed before start of duty

Question 26

What does READ BACK meaning?

Answer 26

Repeat back message received —> including safety critical information as understood

Question 27

What must you NOT DO with or on the radio?

Answer 27

Do not swear Do not use slang Repeat back verbatim Use it for purpose not intended Pass personal/sensitive info

Question 28

What does MINIMISE mean? WHO says it? How should it be said?

Answer 28

1) it means reduce radio traffic 2) Only the controller 3) must be repeated 3 times

Question 29

What does 1) INCIDENT ON THE TRACKS mean? 2) INCIDENT WITH A TRAIN mean?

Answer 29

1) Person under train on the system 2) Collision or derailment

Question 30

1) What does TOGGLING ON do? 2) How do you access it? 3) What’s a good practice when TOGGLING ON?

Answer 30

1) allows you to listen to any ongoing communication 2) hold P3 until speaker icon appears 3) wait 10 seconds or for BASE OUT

Question 31

1) Who can INITIATE an Individual Call? 2) what is the sequence of messages that appear on your radio screen? 3) What audible indicators are associated with this?

Answer 31

1) Either an RHU or Controller 2) Call request on stack and Individual Call 3) A series of beeps

Question 32

1) Who can INITIATE an ALL CALL/GROUP CALL? 2) what is the sequence of messages that appear on your radio screen? 3) What audible indicators are associated with this?

Answer 32

1) Only BASE Operator 2) ALL CALL/GROUP CALL 3) series of beeps

Question 33

What are some COMMUNICATION BARRIERS?

Answer 33

1) not listening properly 2) use of jargon 3) accents/dialects 4) English not being first language 5) poor terminology 6) complacency

Question 34

How to use ON TRAIN RADIO on B2007 fleet?

Answer 34

1) Turn switch to Radio 2) turn switch to call 3) Use PA handset to speak 4) Replace handset when done 5) Return switch to PA

Question 35

Where can you find PUBLIC ADDRESS SYSTEM on the train

Answer 35

They can be found at The DCP Articulated areas EDP

Question 36

TELL ME ABOUT PASSENGER ALARMS (PLATFORMS)

Answer 36

1) They are at Every DLR Platform 2) Press green alarm button to call 3) Proceed with message 4) In emergency, depress emergency mushroom

Question 37

WHAT WOULD YOU DO IN THESE SCENARIOS IF ALL COMMUNICATION FAIL: 1) At a station/between station and train still in motion ? 2) Stuck in a tunnel? 3) Stuck in Bank Headshunt? 4) stuck between station?

Answer 37

1) Continue to next station, secure train and use station equipment 2) Tunnel Telephone 3) Bank headshunt telephone 4) await for assistance