Special Speeds Flashcards

1
Q

What is a W.O.N?

A

Weekly operation notice

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2
Q

Where are weekly temporary or permanent speed restrictions listed?

A
Weekly operation notice (WON)
Circulars 
WTT amendments 
Book of rules
WTT addenda
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3
Q

When is 25km speed restriction generally used?

A
Entering a terminal platform
Until entire train is on the viaduct
Until entire train has departed fss
Maximum speed for extreme caution
Speed limit on platform 8A
Speed proving trips
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4
Q

When is a 40km speed restriction used?

A

Diverging moves from the main line
Metro freight bypass
When powering from a motor other then the lead but braking from then lead
Through viaduct

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5
Q

When is a 15km speed restriction used?

A
  • Passing over facing points when held by hand
  • Passing over facing points that are usually passed in the trailing position
  • Trains involved in shunting movements
  • Rescuing trains from the advance on abs and from either side for single line working
  • All train movements between sidings
  • Any wrong line movements of trains
  • powering and braking from anywhere then the lead motor
  • Setting back in the MURL
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6
Q

Describe a speed board

A

Square yellow reflective board with black numerals which indicates the maximum speed permissible in km/h

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7
Q

What does the G, F, and P mean on speed boards?

A
G = Goods
P = Passengers
F = Fast goods/Freight
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8
Q

What side of the track are curve boards located?

A

Left side

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9
Q

Describe a WOLO 80 restriction

A
  • Line specific
  • 38-41 degrees and when the rail temperature reaches 55 degrees and rising
  • 80km/h maximum speed
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10
Q

Describe a WOLO 70 restriction

A
  • Whole network
  • temperatures of 42 degrees and above
  • 70km/h allowable trackspeed on entire network
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11
Q

In what order do permanent way boards display themselves?

A

W
C
NS
N

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12
Q

What are co active signals?

A

They are a replication of a signal that is obstructed from view

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13
Q

What do we do in the event a co active signal does not match the fixed signal?

A

We treat it as a danger signal and contact train control

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14
Q

For a Comeng, what is the speed restriction for isolated air bags?

A

Half track speed to a maximum of 30km/h

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15
Q

With 2 or less bogies isolated on a 6 car train, what is the speed restrictions?

A

No speed restriction up to 60km/h then 10km/h below track speed for any speed above 60km/h

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16
Q

In an Siemens, what speed can you get up to with the park brakes applied until the safety loop opens?

A

5km/h

17
Q

What is the speed restriction for isolated air bags in a Siemens?

A

80km/h

18
Q

What is the speed restriction for skidding wheels?

A

5km/h

19
Q

What’s the procedure when you’ve hit ATWs?

A
Long whistle
Reduce speed
Hit mad button
Be on lookout for track workers
Anticipate a red flag