SIGNALBOX METHODS

Signals: signal box lever colours (B.R.)
Red: Stop signals, shunting signals
Yellow: Distant signals
Black: Points
Blue: Facing point locks, clearance bars, bolt locks
Brown: Level crossing bolt lock, gate stops and wicket gates
Green: Gongs, electric ground frame release
Black/white striped: fog signals
White: spare
Signals: signal box bell code (early B.R.)
Call attention
|
1 |
Is line clear for: |
|
Express passenger
train; breakdown train proceeding to emergency; light engine going to assist
disabled train |
4 |
Ordinary or excursion
passenger train; mixed traffic train; breakdown train in transit |
3 pause 1 |
Branch passenger train
(applicable only where special instructions are given) |
1 pause 3 |
Livestock or
perishable train composed of coaching stock |
5 |
Empty coaching stock |
2 pause 2 pause 1 |
Livestock or
perishable train composed of goods stock; express goods train |
1 pause 4 |
Through goods, mineral
or ballast train |
4 pause 1 |
Stopping goods or
mineral train |
3 |
Branch goods, mineral
or ballast train (applicable only where special instructions are given) |
1 pause 2 |
Light engine; two
engines coupled; engine and not more than two brake vans |
2 pause 3 |
Ballast or other train
requiring to stop in section |
1 pause 2 pause 2 |
Platelayers trolley
requiring to pass through tunnel |
2 pause 1 pause 2 |
|
|
*Train entering
section |
2 |
*Assistant engine at
rear of train |
2 pause 2 |
Train out of section;
obstruction removed |
2 pause 1 |
Obstruction; danger |
6 |
Blocking back Inside
home signal |
2 pause 4 |
Outside home signal |
3 pause 3 |
Stop and examine train |
7 |
Cancelling signal;
caution signal |
4 pause 3 |
Train passed without
tail lamp |
|
To cabin in advance |
9 |
To cabin in rear |
4 pause 5 |
Train divided |
5 pause 5 |
Shunt train for
following train to pass |
1 pause 5 pause 5 |
Vehicles running away
on wrong line |
2 pause 5 pause 5 |
*Section clear but
station or junction blocked |
3 pause 5 pause 5 |
Vehicles running away
on right line |
4 pause 5 pause 5 |
Opening of signal
cabin |
5 pause 5 pause 5 |
Testing block
indicators and bells |
16 |
Closing of signal
cabin |
7 pause 5 pause 5 |
*Time signal |
8 pause 5 pause 5 |
Lampman or
fog-signalman required |
9 pause 5 pause 5 |
Testing controlled or
slotted signals |
5 pause 5 pause 5
pause 5 |