Whistle Codes (SR 4.50)
|
Sl.
No
|
Whistle
code of Engine
|
Indication
|
|
1
|
0
One short
|
a.
Before
starting:-
1.
Indication
to LP of assisting/banking engine that the leading engine is ready to start.
2.
Acknowledgement
by the LP of assisting/banking engine to leading LP.
3.
Engine
ready to leave loco yard or after completing loco work.
4.
Engine
ready to go to loco yard.
On run-
1. Assistance of
other engine not required.
2. Acknowledgement of
LP of assisting/banking engine that assistance stopped.
|
|
2
|
0 0
Two short
|
a. Call for Guard’s signal.
b. Signals not exchanged by Guard.
c. Signals not exchanged by station staff.
|
|
3
|
––
0
One long one short
|
a. Guard to release brakes.
b. Before starting engine or a train from
station/mid-section.
c.
|
|
4
|
0 0 0
Three short
|
a. Guard to apply
brakes.
b.
Train is out of control, Guard to assist
|
|
5
|
0 0 0 0
Four short
|
a.
Train cannot proceed on account of accident, failure, obstruction or other
exceptional cause.
b.
Protect train in rear.
|
|
6
|
––
–– 0 0
Two long Two short
|
Call for Guard to come to engine.
|
|
7
|
0 –– 0
short long short
|
a. Token not
received
b. Token missed
c. With wrong
`authority to proceed`.
d.
Passing Stop signal at On proper authority.
|
|
8
|
–––––
one long
|
a.
Before starting- Vacuum recreated on ghat section, remove sprags.
b. Passing
Automatic stop signal at `on`.
c.
Passing an IB stop signal at `On` when the telephone provided on the signal
post is out of order and the LP is thus unable to contact the station in
rear.
d.
On run- Acknowledgement of Guards
signal.
|
|
9
|
- - - - - - Intermittent
–––––––– Continuous
|
Approaching level crossing,
a.
Passing tunnel or area of restricted visibility or curves or cutting site of
accident.
b.
Recall Rly servant protecting train in rear.
c. Material train
ready to leave.
d. Running through
a station.
e.
Approaching a Stop signal at `On` or in consequence of fog, storm or any
other reason the view of signals is obstructed.
f.
Detained at a stop signal.
|
|
10
|
––– 0 ––– 0
One long one short repeatedly
|
a. Train parting.
b. Train arriving
incomplete.
|
|
11
|
0 0 ––– one short two long
|
a. Alarm chain pulled.
b.
Insufficient vacuum/air pressure.
c. Guard applied
vacuum/air brake.
|
|
12
|
––– –––
Two long
|
Raise pantograph.
To be acknowledged by the other engine
|
|
13
|
––– 0 –––
long short long
|
Lower pantograph. To be acknowledged by the other engine
|
|
14
|
––– 0 0
|
a.
Signal arm lowered but light
extinguished.
b.
Signal arm improperly taken `off``.
c. Defective
signal.
|
|
15
|
––– ––– ––– Three long
|
Fouling mark not cleared.
|
|
16
|
0 0 0 0 0 0 0 0 frequently
|
a. Apprehension of danger.
b.
Danger signal to the LP of an approaching train whose path is fouled or
obstructed for any reason.
c. While working
on a S/L section during TIC or during TSL working is introduced on a D/L
section.
d.
Moving in wrong direction on a D/L or against the signaled direction in the
Automatic block signaling territory on D/L or against the established
direction in the Automatic block signaling territory on S/L.
|
Note: The
signals above are illustrated by `0`
by for a short whistle and “–––“for a long whistle.
