ENGINE WHISTLE SIGNALS
Apply brakes. Stop.
Release brakes. Proceed.
Answer to any signal not otherwise provided for.
Backing from a starting position.
Call for signals.
Protect front of train.
Protect rear of train.
Approaching public crossing at grade. To be
prolonged or repeated until crossing is reached.
Call in trainmen from South or West.
Call in trainmen from the North and East.
Alarm for persons or livestock on the track
(short series of sounds).
FIGURE 3-13. ENGINE WHISTLE SIGNALS.
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