Multiple Signals, SPECIAL SPEEDS,Level XINGS Flashcards
How should multiple signals on the same post be read for 2 positions signals?
From Top to bottom left to right
Each signal has its own road (4 signals = 4 directions)
What is a co-acting signal? What’s the purpose?
They used were a signal, cannot be easily seen due to an obstruction
How can we identify which signal is the co actor?
It has the same number as the actual signal it may (or may not) be followed by the letter P
What speed is the definition of
extreme caution?
Not exceeding 25 km/h or posted track speed if that is less than.
Being able to stop the train in half the distance that can be seen and being prepared to find the section ahead, occupied, obstructed or track damaged
What circumstances are we required to do a max of 25 km/h?
• At Beginning of Terminal dead end platforms
When are we required to do 40?
-2 answers
• To and from mainlines diversion from the straight track
• Train assisted by another when brake is controlled from the lead
When are we required to do 15?
- Passing over, facing points, that are normally trailing points
- shunting movements
- Pushing trains during a rescue
- Moving in a siding
- Wrong line movement at a level Crossing
- Passing over facing points when held by hand
Are we required to follow speedboards?
Yes
Where are curve boards located?
(In regards to the line so you know which line it applies to)
On the left-hand side of the line, facing the driver, when approaching the curve from either end
When should the driver reduce the speed of the train when faced with a curve board?
Before the train into the curve, the train must be at or below speed indicated
not at the actual curve board
What is a WOLO (advice Notice) ?
It is a speed restriction that is applied due to the increased stress imposed by a higher temperature on the tracks
What is a WOLO 80?
80 km/h max speed
RAIL TEMP is 55 or above
(Line specific)
Before update Temperature forecast 38° - 41°
Rail temp 55° and rising
What is WOLO 70
Junction specific
Max speed 70 km/h
When RAIL temp is above 58
Previous to the update was when Temperature reached above 42°
How are drivers notified about Wolo restrictions?
Notis is placed in the Sign On area
Noticeboards at Flinders Street
TC calls throughout the day
WOLO boards at various locations
At what time WOLO restrictions usually enforced?
Between 12:00 and 20:00 hours
Who can cancel a WOLO?
Track Manager
What are the different types of level crossings?
Boom gate with flashing lights and warning bells
Pedestrian and bicycle with active control
Pedestrian and bicycle with passive control
Tramway level crossings
Warning, lights only
Private ‘giveaway to trains’ crossings
What does active control mean? What does passive control mean?
Active - Flashing lights bells and boom Gates
Passive - Fixed warning signs only
What is level crossing activation points?
At some locations level crossings are activated when the train passes an automatic signal through short-circuiting the track circuit or activating the axle counter
What is a flashing light repeating side light?
A repeating flashing red or white side light that the driver can see at a level crossing,
which tells the driver warning devices are active and functioning
Name three types of whistle boards
Normal type
healthy state indicator type
predictor board type
How much the driver respond on passing a normal type whistle board?
- Sound along whistle
- Observe the level crossing activates
- Observe crossing is clear of vehicles, pedestrians or other obstruction
- Sound along whistle prior to entering the Crossing
What is a healthy state indicator whistle board
A yellow cross - indicates the crossing is working correctly
What is a predictor board?
A black diagonal cross inside a black circle on a white background
On reaching predictor board drivers must not increase speed until train has entered the crossing
Currently none within metro system
When another train is approaching the Crossing at the same time as your train, what must both drivers do?
Both drivers must sound the whistle continuously until both trains have reached the crossing
In what position is the key switch for a home signal when the signal is at proceed?
REVERSE
Must turn key to NORMAL to raise boomgates
(signal goes to stop)
In what position is the Key switch for an automatic signal when the signal is at proceed?
Normal
Must turn switch to reverse for boom gates to be raised (signal goes to stop)
Where are the key switches for operating boom gates normally located?
Usually at the end of the platform or on the station building
Can be found on signaling diagrams
What does a tram square sign look like?
Square yellow reflectorized sign, with black lettering
Where is a tram squared sign located?
At the Tram Square at the commencement of the speed restriction
When does the tram square speed restriction end?
When the train reaches the END TRAM SQUARE clearance sign
What is this marker And what does it indicate?
Limited clearance marker
Indicates
Not much room from the train to the structure
