Signs Flashcards
Name the signal types below?
What are these called?
Junction indicators
A junction indicator is normally located above the signal, and will display a line of white lights when a proceed aspect is displayed. When the straight route is obvious, there is normally no junction indicator provided for this route. Where there is no obvious straight route, a junction indicator will be provided for all signalled routes. Where the straight route is not the highest-speed route, the junction indicator will normally apply to the lower-speed route. Where the diverging routes ahead are both of equal speed, a junction indicator will be provided for each route.
What do these mean?
Flashing yellow aspects mean that facing points at a junction ahead are set for a diverging route and the speed of the train must be reduced.
Whats the normal sequence of three-aspect flashing yellow signalling?
- Green
- Single flashing yellow
- Single steady yellow with junction indicator
- Red
Whats the normal sequence of four-aspect flashing yellow signalling?
- Green
- Double flashing yellows
- Single flashing yellow
- Single steady yellow with junction indicator
- Red
These position lights are in the ‘stop’ position. When are you allowed to pass them?
The driver may pass the signal in the ‘stop’ position when the movement is being made towards the shunt neck or siding and not the running line.
The driver must be prepared to stop short of any train, vehicle or obstruction.
If the position-light signal displays two white lights at 45°, this authorises the driver to proceed at caution towards the next stop signal on the running line.
What is the purpose of a co-acting signal?
Co-acting signals are provided to give both short and long distance sighting of the signal. A co-acting signal repeats the exact aspect or indication of the main signal.
What is a prilimanary route indicator?
A preliminary route indicator is provided where it is necessary for a driver to receive advance information about the route that has been set beyond a junction signal ahead of the train.
If the junction signal is at danger, the preliminary route indicator is not illuminated.
What is this and how is it used?
Warning indicator
Provided on the approach to certain speed indicators and give a warning of a reduction in permissible speed ahead.
There may also be a fixed AWS magnet on the approach to the indicator.
What is this and how is it used?
Temporary speed restriction warning board.
A warning board is placed on the approach to a temporary speed restriction ahead.
An AWS magnet is provided on the approach to a warning board.
What is this and what does it mean?
Termination indicator.
The termination indicator shows the end of the speed restriction.
What are these and what do they mean?
A repeating warning board is placed on the end of a platform or a connection from a siding or dead-end platform line to remind the driver there is a temporary speed restriction ahead. The board will also have the associated speed indicator or a spate indicator below the board.
What is this and what does it mean?
Emergency indicator.
When an emergency speed restriction is to be imposed an emergency indicator will also be used. The indicator has flashing white lights that must be working at all times. An AWS magnet is provided on the approach to an emergency indicator for an emergency speed restriction ahead.
What is this indicator and what does it mean?
The SPATE indicator (Speed Previously Advised Terminated Early) shows the speed restriction has been withdrawn or will not be imposed
What is this an what does it signifiy?
A speed indicator showing the start of the speed restriction.
What is this and what does it signify?
Rear clear marker
This sign informs the driver that the train has cleared a defined location to the rear.
What is this and what does it signify?
Mid-platform train berth marker.
This sign informs the driver of the sub-divisions along a station platform to permit its use by more than one train.
What is this and what does it signify?
A permanently installed AWS cancelling indicator.
What is this and what does it signify?
An AWS cancelling indicator.
Where the AWS magnet is provided in connection with a temporary or emergency speed restriction on a single or bi-directional line, the indicators look like this.
What are these and what do they signify?
AWS is not provided at a station on a line equipped with AWS.
They identify the start and end of an AWS gap.
What are these and what do they signify?
AWS is not provided in the opposite direction on a bi-directional line.
They identify the start of the relevant section of line concerned and end of the section and normal arrangements resume.
What is this sign and what is its meaning?
Level crossing warning board.
On passing the warning board, the train must be controlled so that the speed shown on the speed restriction board is complied with between the board and the crossing.
What do these signs mean?
Speed restriction board.
The train must be controlled so that the speed shown on the speed restriction board is complied with between the warning board and the crossing.
What is this sign and what does it signify?
Neutral section warning board.
This sign provides advance warning of a neutral section.
What is this sign and what does it signify?
Neutral section indication board.
This sign identifies the commencement of a neutral section.
What does this sign mean?
This sign means ‘lower pantograph’.
Maximum speed 25mph.
What does this sign mean?
This sign means ‘raise pantograph’.
Maximum speed 25mph.
What does this sign mean?
This sign means ‘do not raise pantograph’.
What is this sign and what does it signify?
The Advanced Lower Pantograph warning sign.
This sign provides warning of a lower pantograph sign ahead. The sign also has flashing white lights.
What does this sign mean?
This board advises that the driver may coast to a stopping point or significant speed reduction beyond the board.
