3.2 Test Only Flashcards
Permissive Signals
Permissive signals are distinguished by two light units, or one light unit and marker disc being staggered.
- the lower unit is positioned in a diagonal line to the right of the upper unit
All Red Permissive Signals
Name: All Red Permissive Signals
Call: All Red Stop
Action:
- stop
- wait 10 seconds, then proceed cautiously, prepared to stop short of any obstruction
- prepare to find track obstructed or occupied
- points incorrectly set
- level crossing alarms may not be working
- rail may be broken or displaced
Banner Indicator
Name: Reduce to Medium
Call: Reduce to Medium Next Signal
- next Signal at Caution Reduce to Medium Speed
All Red ‘A’ Light On
Name: All Red ‘A’ Light On
Call: All Red Stop
Action:
- stop
- wait 10 seconds, then proceed cautiously, prepared to stop short of any obstruction
- prepare to find track obstructed or occupied
- level crossing alarms may not be working
- rail may be broken or displaced
- ‘A’ light converts Absolute to Permissive signal
What are the three different classifications of signals?
- Permissive Signals
- Absolute Signals
- Departure Signals
Caution Prepare to Stop
Name: Caution Prepare to Stop
Call: Caution to Stop
Action:
- section is clear
- proceed cautiously be prepared to stop at next signal
- next signal in advance is at stop or displaying low speed indication
Signal Calling between Pilot and LE
The Pilot must come to an agreement with the LE as to which method of Signal Calling is to be applied before the movement occurs.
Shunt Signals
Name: Caution Low Speed
Call: Yellow on Shunt
Action:
- proceed cautiously at low speed (max 25kph)
- points are correctly set
- prepare to find track occupied or obstructed
- rail may be broken or displaced
Caution Low Speed
Name: Caution Low Speed
Call: Low Speed
Action:
- proeed cautiously at low speed (max 25kph)
- points are correctly set
- prepare to find track occupied or obstructed
- be ready to stop short of any obstruction
Shunt Signals
Name: Clear Low Speed
Call: Green on Shunt
Action:
- proceed at low speed
- points are correctly set
- track is clear but suitable for low speed only
- next signal in advance at Caution or Clear
Clear Medium Speed
Name: Clear Medium Speed
Call: Medium Clear
Action:
- proceed at medium speed until train is clear of all points to which the signal applies
What is Normal Speed?
(2)
- always includes flashing yellow, yellow or green in upper unit
- trains must not exceed the speed laid down for the locality
Banner Indicator
Name: Stop Next Signal
Call: Stop Next Signal
- next signal at Stop or Low Speed
Information supplied by Banner Indicators
Identified by the number of the signal in advance followed by suffix ‘BI’.
Horizontal = RED
45 degree = YELLOW
Vertical = GREEN
Banner Indicator
Name: Medium to Stop
Call: Medium to Stop Next Signal
- next Signal showing Medium Speed Prepare to Stop
Clear Normal Speed
Name: Clear Normal Speed
Call: Normal Clear
Action:
- proceed at normal speed, not exceeding the speed laid down for the locality
All Red ‘A’ Light Off
Name: All Red ‘A’ Light Off
Call: All Red Stop
Action:
- stop
- do not pass without the prescribed permission from whoever controls the signal
Banner Indicator
Name: Medium Clear
Call: Medium Clear next Signal
- next Signal showing Clear Medium Speed
Banner Indicator
Name: Normal Clear
Call: Normal Clear Next Signal
- next Signal at Normal Clear
What is LOW speed?
(3)
- proceed cautiously (not to exceed 25kph) to be able to stop clear of any obstruction.
- points are correctly set.
- the track may be occupied.
What is MEDIUM speed?
(2)
- train must not exceed 25kph unless authorised by; higher speed board or ETCS indicates a higher speed
- medium speed must be maintained until the train is clear of all points to which the signal applies
Advance Caution Prepare to Stop
Name: Advance Caution Prepare to Stop
Call: Advanced Caution to Stop
Action:
- proceed at normal speed
- prepare to stop at 2nd signal in advance
Shunt Signals
Name: STOP
Call: ALL RED STOP
Action:
- Stop
- do not pass unless authorised by the prescribed verbal or written instruction
Advance Caution Normal Speed to Medium Speed
Name: Advance Caution Normal Speed to Medium Speed
Call: Advance Caution to Medium
Action:
- proceed cautiously prepare to pass 2nd signal in advance at medium speed
Absolute Signals
Absolute signals are distinguished by the two light units or one light unit and marker disc positioned vertically on the signal mast.
Banner Indicator
Name: Caution
Call: Caution Next Signal
- next signal at Caution prepare to stop
Caution Medium Speed Prepare to Stop
Name: Caution Medium Speed Prepare to Stop
Call: Medium to Stop
Action:
- proceed at medium speed until train is clear of all points to which the signal applied
- prepare to stop at next signal
Conversion of Absolute to Permissive with ‘A’ Light
‘A’ lights are also provided on some Intermediate Absolute signals to:
- assist with recovery of disabled trains
- axle counter resets
- signalling communication failures
RESTRICTED speed?
(5)
- stop, contact train control to ascertain reason for ‘R’ light
- proceed cautiously at restricted speed
- prepare to find track obstructed or occupied
- being able to stop short of an obstruction within half of the clear distance of line visible ahead
- not to exceed 40kph
Caution Reduce to Medium Speed
Name: Caution Reduce to Medium Speed
Call: Reduce to Medium
Action:
- proceed cautiously prepare to reduce to medium speed at next signal
All Red Absolute Signals
Name: All Red Absolute Signals
Call: All Red Stop
Action:
- stop
- do not pass unless authorised by prescribed verbal or written instruction
