Special Speeds Flashcards
What is WOLO 80?
Rail temp above 55degrees
80km/h max line speed
Line specific
What is WOLO 70?
Rail temperature of 58°C or more
70km/h max
Applies only to the junction that the temperature was measured in
(North Melbourne, Clifton Hill, Burnley, Richmond, Dandenong, Ringwood)
What times are WOLO restrictions usually enforced?
Between 1200 and 2000
How are WOLO restrictions communicated?
- Notice boards
- Group calls through the day to affected lines
What are curve boards?
Yellow pointed signs with speed written in black numbers.
The point indicates the direction of curve
When can a driver resume track speed when going around a curve?
When the whole train is clear of the curve
When must a driver reduce speed for curves?
Before the train enters the curve not at the board itself
Examples of permanent speed restrictions:
• Curve boards
• Diverging boards
• Speed Boards
Examples of Temporary Speed Restrictions:
• Permanent Way Temporary Speed Restrictions
• WOLO Temperature Restrictions
• CAN restrictions
Reasons to do 40 Km/h?
• Medium Speed aspects
• Passing through Points
• Braking works in LM but powering elsewhere (Rescues)
Reasons to do 25km/h? (4)
•Extreme caution
• Waving Green Flag (TFP)
• Speed proving trips
• Terminal locations ( Dead end platforms)
Reasons to do Reduced Speed Cautiously?
Power/Brake LM during rescue
Reasons to do 15km/h: (6 answer)
• “Low” Aspect
• Sidings speed/Shunting
• Trailing points become facing points
• Points held by Hand
• Propelling Trains (Rescue) no power or brake in the lead
• Proceeding wrong way over a level crossing
What is the description of Extreme Caution?
Travelling at a speed not exceeding 25km/h or posted track speed if less
Being able to stop train in half the distance that can be seen ahead
Being prepared to find the section ahead Occupied, Obstructed or Track Damage
What are the 4 types of Speed Boards?
-Speed Board
- Speed Board with Arrow
- Speed Board for over subway
- Speed Board for diverge only
