Level Crossings And Track Side Signs Flashcards
What are the types of level crossing protections used?
- Boom gates
- pedestrian and bicycle (active)
- pedestrian and bicycle (passive)
-Tramway - warning lights only
- private
What types of Whistle Boards are used?
- normal
- healthy state indicator
- predictor board
What are the whistle requirements for level crossings?
- sound a long whistle
- make sure level crossing activates
- make sure crossing is clear vehicles, pedestrians, and other obstructions
- Long whistle prior to entering the crossing
What are 5P key switches used for?
To manually place the signal at the stop position and raise the level crossing equipment.
What are Tramway speed signs used for?
To advise drivers of the designated speed for that tramway crossing.
What are the three types of coasting indicators?
- Coast
- series
- series parallel
What does a limited clearance board indicate?
That there is limited clearance from the trackside infrastructure.
What other boards can be seen around the network on the Main Line?
- section board
- axle counter territory boards
- TPWS boards
- high PAE signal approach board
- Timing boards
- Train stop here boards
- terminal stop boards
What other boards can be seen around the network in sidings?
- Departure instruction boards
- Arrival instruction boards
- Speed indication boards
- Point machine indication boards
- Stopping indication markers
- TR point indicators
- baulks
- Limit of Shunt boards
Whistle boards a position how far from level crossings?
400 metres
What colour are healthy state indicators?
Yellow
Definition of a long whistle?
- Distinct with intensity and duration
- appropriate for the distance in which it is to be heard.
Definition of emergency whistle?
Series of short urgent blasts.
Where does bell block activate?
3 metres
What signals are permissive?
Automatic.
