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Grand Scales General Code of Operating Rules First Edition January 1, 2007

Whistle Blowin’ 3.14 Engine Whistle Signals

The signals prescribed are illustrated by “o” for short sounds and “—“ for long sounds. The sound of the horn or whistle must be distinct, with the intensity and duration proportionate to the distance a signal is to be conveyed.

a. o

When standing: the acknowledgement of a signal to

initiate an airbrake test.

b. —

  • c.

    — —

  • d.

    oooo —

After stopping: brakes applied; pressure is equalized. When standing: airbrakes are applied; pressure is equalized. When running: approaching stations. Release brakes; proceed. Call conductor to the engine or radio.

  • e.


  • f.


  • g.


  • h.

    — ooo

  • i.

    ooo —

Acknowledgement of any signal that is not otherwise provided for. When standing: back. When running: stop at next station. Call for signals. Flagman protect rear of train. Flagman protect front of train.

  • j.

    — — — —

  • k.

    — — o —

  • l.

    o —

  • m.

    — — o

  • n.

    many shorts

  • o.


  • p.

    — o

  • q.

    — oo

Flagman may return. Approaching crossing at grade. The signal will commence at the whistle board (w) and the last long sound will not end until the engine has occupied the crossing. Inspect the brake system for leaks or sticky brakes. Approaching train meeting place and waiting points. Alarm for persons or animals on tracks. All trainmen apply handbrakes. Approaching railroad junction. One engine’s signal to another to confirm it is safe to pass. The engine in the siding is to return the signal acknowledging it is safe to pass; this signal is not mandatory.

Headlight On 3.15 Except as otherwise allowed, a lighted headlight will be displayed bright on the front of every train. If the headlight fails, a white light must be substituted where required. Headlight failures must be reported by the first means of communication and reduce to restricted speed.

Headlight Dimmed 3.16 When moving, engines must display a headlight to the front and rear at night, except that it may be dimmed or extinguished on the end coupled to cars and in sidings for a meet with an opposing train.


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