Signal Irregularities Flashcards
When detained at a Fixed Signal what should the Driver do?
Contact Area Controller/Signaller/TC
When detained for long periods make contact at regular intervals of at least 5 minutes and make PA announcements
What does the Signaller need to inform the Driver when detained at a STOP Signal?
Expected duration of delay
Reason for Delay
If Blocking Facilities have been applied
When should the Driver contact TC when detained at Stop Signal
When cannot contact Signaller
If not satisfied to cause and duration of delay
If delay exceeds 5 minutes
What are examples of Signal Irregularities (9) ?
Absence of signal where one is normally shown
Imperfectly displayed
Flickering
Disc not turned properly
White where colour should be
Exhibition of 2 Signals where only 1 should be
Conflicting co-acting Signals
Reverting to Stop prior to train passing
Any Signal not displayed in 1994 Book of Rules
How do you act on Irregular Signals?
Home, Disc, Dwarf:
- Attempt to stop
- advise Controlling Signaller or
TC
- Receive correct Authority to
pass
Automatic
- Attempt to Stop
- Advise TC
- if train stops prior to Signal,
R1 S3
- if it doesn’t, advise TC re
tripping in vicinity of Fixed
Signal
What happens when a HOME Signal is Defective at Proceed?
Obscure Lights
2 ATWS placed 10m apart at sufficient distance
Flag Person exhibits RED/Stop hand signal and advise Driver of situation
PA announcement
Obtain correct authority from Controlling Signaller
Proceed with Extreme Caution to next signal
What happens when a DISC/DWARF Signal is Defective at Proceed?
Obscure Lights
No ATWS
Flag Person displays RED hand signal under instruction of CS and inform driver of situation
Obtain correct authority to pass
What happens when a AUTOMATIC Signal is Defective at Proceed?
Obscure Lights
2 ATWS placed 10m apart at sufficient distance
Flag Person exhibits RED hand signal and advise Driver of situation
PA Announcement
Pass as per R1 S3
Proceed with Extreme Caution to next fixed signal
What happens when Home, Disc and Dwarf Signals Revert to Stop before passing?
Attempt to stop
Contact Controlling Signaller or TC
PA Announcement
Obtain necessary Authority to continue or set back behind Signal
No COMMS - Wait to be contacted
What happens when an Automatic Signal reverts to Stop before passing?
Attempt to stop prior to Signal
Contact TC
once authorised pass signal at STOP as per R1S3
If fail to stop prior to signal follow the rule for Tripping in the vicinity of a Fixed Signal
What happens for Wrong Routing?
Communicate with Controlling Signaller
If unable to stop prior to signal:
act under instructions of Signaller
This may involve:
- Set back behind the signal; or
- Continuing on the wrong route
If setting back:
PA announcement
Change Ends
Setback with the correct authority
Continue as instructed
What should you do if your train is routed onto an unwired track?
Apply Emergency Brake attempting to stop short of the end of Overhead
Lower Pantographs to prevent damage to Pantographs or Overhead
What happens when there is Failure Of Illuminated Letter A, in a Metrol Controlled Area?
Stop
Contact Area Controller
They will ascertain if Switched In or Out
Pass as per R1 S3
No COMMS - Train Over Time in Section TOTS
What happens when there is Failure Of Illuminated Letter A, in a Locally Controlled Area - with COMMS?
Sound Long Whistle
Contact Signaller
If unable to contact Signaller, contact TC to ascertain if switched In or Out
PA Announcement
TC will instruct/verbal auth. you to check points and pass as per R1 S3
What happens when there is Failure Of Illuminated Letter A, in a Locally Controlled Area - with NO COMMS?
Sound Long Whistle
PA announcement
Secure Train - Full Cab Unattended
Look for ‘SIGNAL BOX CLOSED’ sign
- if you see sign, assume failure of ‘A’,
check points, proceed as per R1 S3 - if you don’t see sign, try PASSENGER EMERGENCY BUTTON on platform, look for staff who may be able to operate panel, TOTS
