Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Signals, Safeworking & ROUTE knowledge METRO trainee Train driver > 3 POSITION SIGNALS > Flashcards

3 POSITION SIGNALS Flashcards

1
Q

What information does a driver get with 3 position signaling?

A

Points - set or not
Track section ahead, - clear or occupied
Speed - normal/ medium
Next signal - stop or proceed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What does a greenlight inform the driver about the next signal ahead?

A

Next signal will be a another proceed aspect

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What does a yellow light inform the driver about the next signal ahead?

A

Next signal will be at stop

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What does a medium Speed aspect tell us

A

Medium Speed aspects are used where:

  • there are junctions or diverging running lines
  • Speed of the train is to be reduced to medium due to short track sections
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What type of signal are three position signals

A

LIGHT type

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is A light
B light and
C light?

A

A - top
B - bottom
C - on Home Signals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the classes of signals three position?

A

Home
automatic
dwarf

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What do you three position home Signals protect ?

A

Stations
signal boxes,
sidings
level crossings
junctions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Why is a tramway square protected by Home signals?

A

Because the power in the overhead has to be switched over to accommodate the different voltagei used by different vehicles

(Tram 600 v
Train 1500 v)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the purpose of automatic signals?

A

Automatic signals purpose is to expedite the passage of trains by dividing a long section of track into shorter sections

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the purpose of a home signal and how are they controlled

A

Home protect sections of track, and are regulated by signallers/ area controllers to Regulate trains and protect conflicting movements

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Who controls dwarf signals?

A

Signalers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What do dwarf signals control train movements from?

A

Running line to running line
running line to siding
siding to running line
siding to siding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which signals are absolute

A

Home, dwarf, and disc

(Meaning they require permission from signaller to pass when at stop)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which signals are permissive

A

Automatic

Drivers can self authorize to pass the signal at stop R1S3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What colors do home and automatic signals display?

A

🔴 red
🟡 yellow
🟢 green

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What colors do dwarf signals display?

A

🔴
🟣
🔵

🟢

🟡

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Can an automatic signal display a low speed caution?

A

No

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is a marker light?

A

It’s just a smaller light that Only ever displays the color red.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Aspect and meaning?

🟢
🔴

A

CLEAR NORMAL SPEED

  • Points set
  • Track clear
  • Track speed
  • Next signal at proceed
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Aspect and meaning?

🟡
🔴

A

NORMAL SPEED WARNING

  • Points set
  • Track clear
  • Normal track speed,
  • Next signal at stop
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Aspect and meaning

🟡
🟢

A

REDUCE TO MEDIUM

  • Points set
  • Track clear
  • Normal track speed
    (must reduce to 40 before next signal)
  • Next signal proceed
  • If next signal observed is an improved aspect, requirement to reduce speed, no longer applies
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Aspect and meaning

🔴
🟢

A

CLEAR MEDIUM SPEED

  • Points set
  • Clear track
  • 40 for whole section up to next signal
  • ATC: 40 only until whole train has cleared
    the points (home Dep. sig.)
  • Next signal at proceed
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Aspect and meaning

🔴
🟡

A

MEDIUM SPEED WARNING

  • Points set
  • Track clear
  • 40 up to the next signal
  • Next signal at stop
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Aspect and meaning 🔴 🔴
STOP - Points not yet set - Track may be occupied - Reverser to off /neutral (marker lights white) - Next signal unknown
26
Aspect / meaning 🔴 🔴 🔅
LOW SPEED CAUTION - Points set - Track may be occupied - Max 15 - Next signal, if any, unknown
27
Can a low speed, caution be used for train movements into a bidirectional portion of track?
No
28
are low speed caution signals provided for on ATC home departure signals?
- Only to allow movement into the siding or adjacent track - they cannot be used to allow train movements into a single line section
29
What signal will you typically get prior to a stop signal?
Either a normal speed warning, or a medium speed warning
30
Automatic signal with illuminated 65 or 80 reduced to medium. When must the train be at the allocated speed? (At the reduce to medium with illuminated 65/80 OR at the Medium speed with illuminated 65/80)
Before the next signal displaying clear medium speed with illuminated 65 or 80 - (not at the reduced to medium signal with 65/80)
31
Aspect and meaning 🔴 🟢 65
CLEAR MEDIUM SPEED With illuminated 65 or 80 - Points set - Speed as per signal value (65/80) - Track clear - Next signal at proceed - High speed points - Diverging movement
32
Aspect and meaning 🔴 🔴 🅰️
ILLUMINATED A ON 3 pos HOME signal - Points set for the mainline - Signal operating in auto mode - Auto signal rules apply (R1S3)
33
When detained at a home signal without the illuminated A displayed, what must you do?
Contact the area controller and remain on your train until authorized to pass the signal at stop Do not pass the signal at stop, unless authorised (treat as a home signal)
34
How do you know if a signal box is switched out and if it is what mode do trains run in?
A sign is displayed on the door. “Signal box closed” (Run by passage of trains/ in fleeting mode)
35
When, in fleeting mode, (signal box is switched out), how will the signaller have set and secured the points?
Points will be set and secured for the normal running lines, so that trains can pass through the unattended location
36
When is the illuminated A ONLY ever displayed?
- When HOME signal it is attached to is at stop - when Signal Box is switched out
37
What TYPE of signals are Dwarf signals?
Light type
38
What indications do 3 pos.DWARF signals display?
- Stop 🔴🔵🟣 - Low Speed Caution 🟡 - Clear Low Speed 🟢
39
dwarf Aspect & meaning 🔴🟣🔵
STOP - points not set - Track may be occupied - Reverser OFF/ Neutral - next signal unknown
40
Dwarf Aspect & meaning 🟡
LOW SPEED CAUTION - points set - track may be occupied - 15 km/h MAX - next signal unknown
41
Dwarf aspect & meaning 🟢.
CLEAR LOW SPEED - points set - track clear - 15 km/h MAX to next signal (ATC - 15 only until train cleared the points) - next signal is PROCEED
42
On ATC which signals allow you to increase speed restriction (e.g. 40 or 15km/h) once cleared the points ?
CLEAR MEDIUM SPEED or CLEAR LOW SPEED
43
What is the purpose of a banner indicator?
To indicate the aspect of the signal ahead, where a clear view of that signal cannot be obtained
44
Are banner indicators fixed signals, and can they be considered as the signal in advance?
No
45
What do we do if a banner indicator is defective?
Just report the fault to TC and go past it expecting the next fixed signal to be at Stop
46
What are the following banner indicators?
47
STOP
48
NORMAL SPEED WARNING
49
CLEAR NORMAL SPEED
50
REDUCE TO MEDIUM
51
MEDIUM SPEED WARNING
52
STOP
53
NORMAL SPEED WARNING
54
CLEAR NORMAL SPEED
55
What is the purpose of repeating signals?
They are used to give advanced warning of a three position signal when leaving a to position signalled area
56
What aspects can repeating signals display?
- Warning - Stop - Reduce to Medium
57
Aspect and meaning of repeating signal 🟡 🟡
WARNING - next signal is at STOP
58
Aspect & meaning of repeating signal 🟢 🟡
PROCEED - next signal a NORMAL aspect
59
Aspect & Meaning of repeating signal 🟡 🟢
REDUCE TO MEDIUM - next signal a MEDIUM aspect
60
How do we treat a repeating signal that is defective or is displaying an irregular aspect?
At WARNING Which is the safest aspect

Signals, Safeworking & ROUTE knowledge METRO trainee Train driver (48 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions