Single Line Working Token Working

Question 1

What is the principal of single line working with a token

Answer 1

The principal of single line working is that only train is allowed to enter one section of track at a time

Question 2

What is electric token working

Answer 2

Token working between two signal boxes.
The signaller releases the token from the machine electronically. The signal boxes communicate via buzzer codes

Helps overcome the limitations of staff working

Question 3

What is no signaller electric token working

Answer 3

The same concept at electric token working but using a central signaller controlling the entrance and exit of the section. Driver requests a token from a token instrument and carry as authority

Question 4

What is tokenless block working

Answer 4

No tokens are used. Signaller A and signaller B communicate via buzzer codes.
Section is protected by signals with interlock provided between the two signal boxes

Question 5

What does RETB stand for

Answer 5

Radio Electric Token Block

Question 6

How does radio electric token block work

Answer 6

Using an additional train cab unit

Train stops at stop board A
Driver calls signaller to request a single line token
If section is clear a token code will be issued and appear on the cab unit
The driver must confirm they have received the token, authority given
Once clear of the section the driver contacts the signaller via cab unit to give up token

Question 7

What does SIMBIDS stand for

Answer 7

Simplified bi-directional signalling

Question 8

What’s the maximum speed for wrong directional running

Answer 8

70 mph

Question 9

What should you consider before entering a single line working with a token section

Answer 9

Make sure you collect the right token for the section you’re entering

Question 10

Where there is a no-signaller token instrument provided what must you do

Answer 10

You must ask the signaller or authorised person to release the token

Question 11

You do not need to have the token or train staff if……

Answer 11

The line is under possession
Working by pilot is in operation
Modified working is in operation
You’re authorised to pass the section signal on an electric token line at danger for shunting
Your train is entering the single line section as an assisting train

Question 12

If the token has been given to the shunter for shunting purposes, you must not continue with the journey until

Answer 12

Shunting is completed

The points have been locked in the correct position for trains to pass

The shunter has returned the token to you

Question 13

When the train had reached the end of the token section, you must………

Answer 13

Put the token back and inform the signaller
Or
Give the token to the signaller or authorised person detailed in the sectional appendix
Or
Where a no-signaller token instrument is provided, place the token in the instrument or give token to authorised person to do this

Question 14

If your train fails and an assisting train has to enter the section from a ground frame which is released by a token. What will the signaller instruct you to do

Answer 14

Take the token to the ground frame

Question 15

When at a token operated ground frame meeting an assisting train, what must you do

Answer 15

Contact the signaller

Not place the token in the instrument

Come to a clear understanding with the signaller about what is to be done

Hand the token to the driver of the assisting train

Question 16

What must you do if any portion of your train is left in the single line section

Answer 16

Tell the signaller before leaving the section

Keep the token until the whole train is clear of the single line section

Question 17

If you’re told that because of a failure of token instruments, trains will run as if on a one train working line where a train staff is provided you must

Answer 17

Handle the token as if it is a train staff

Not place the token in any instrument

Question 18

On a no-signaller token line, when can you pass a token from train to train

Answer 18

When a train is to enter the section to assist, from the front, a portion of a train which has been left in the section

Your told that due to token instrument failure the single line section will be worked as a one train working line with train staff

Question 19

You must not enter or foul the single line section until the controlling signal is cleared unless……

Answer 19

The line is under possession

Working by pilot is in operation

Modified working arrangements

Your train is to enter to assist another train

Question 20

What is single line working with a staff

Answer 20

Signaller hands over token at start of section, token is carried as authority and handed back to to signaller on leaving section

Question 21

What is single line working without a staff

Answer 21

No staff or token issued, section authorised and protected by signal

Question 22

What are the 5 different types of single line token working

Answer 22

With and without staff working

Electronic token working

No signaller token working

Tokenless block working

Radio electric token working

Question 23

What is modified working, when single line token working

Answer 23

Can be used in times of no token available, due to vandalism, failed token instrument etc

Can be used for up to 2 hours before pilot arrives

Work from RT3177 form