Signals cards Flashcards
What is the objective of the ABS system and how are the station limits defined?
- Prevents more than one train being in a signle track section at a time. This is done with track circuiting, when a fixed signal is passed it will go to stop until the train clears that track section.
- Prevents opposing trains running in opposite directions on a bi-directional single line section at the same time.
Station limit is from Arriving home to the automatic signal in advance of the Departing home, in the case of where there is no departing home it is the automatic signal in advance of the Arriving home.
How do you cancel Signallers Caution Orders at an unattended location?
Write Cancelled, Time, Date and sign and sumbit it with the irregularity report.
What permission do you need to pass a Home Signal (ABS) which is not protecting anything?
Verbal from signaller
What is this aspect telling you?
Clear Medium
- Points are set for the move.
- The track ahead is clear
- Trackspeed is 40km/h. On ABS this is to next fixed signal, on ATC this speed is only until your whole train passes the points./li>
- The next signal is proceed.
What is this aspect telling you?
Clear Normal
- The track points are set for the move
- The track ahead is clear.
- Track speed.
- The next aspect is proceed.
What is this aspect telling you?
Medium speed Warning.
- The points are set for the move.
- The track ahead is clear.
- Track speed is 40km/h.
- The next signal is expected to be stop.
What is this aspect telling you?
Normal speed Warning
- The points are set for the move.
- The track ahead is clear.
- Track speed, but you should expect to be ready to stop by the next signal.
- The next signal is expected to be at stop.
What is this aspect telling you?
Reduce to medium.
- The points are set for the move.
- The track ahead is clear.
- Track speed, but you must be ready to do 40km/h before the next fixed signal.
- The next Signal is expected to be a proceed at medium.
Which end do you start a prep?
Lead cab
Home arrival/ Home Departure are for which system?
ATC
Arriving home/Departing home are for which system
ABS
Dwarf exceptions in ABS and authority to pass?
Defective - Verbal from an the Signaller or hand Signaller communicating with Signaller. Single Line Working - Pilots Verbal authority.