What do the different train horn blasts mean?

Today, the only whistle signals you're likely to hear regularly are the grade-crossing warning (which is also often used to warn employees or others on the tracks); two (or three) shorts to indicate the engineer has received a signal to start the train forward (or backward); and one long blast when a train is ...



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If you hear, two small horns, it means the motorman is asking the guard to direct the railway signal to start the train. In case you hear three smaller horns, it suggests that the motorman has lost control over the train. This also acts as a signal to pull the vacuum break immediately. This signal is rarely heard.

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It is the standard signal used when the train is about to move forward. Two long blasts of the horn are for warning anyone near the train that it is about to move forward. There are other standardized horn signals like three short blasts for the train about to move backward.

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Anyway, don't blame the engineer: They're required to blow that horn. The regulation in question is called the Final Rule on the Use of Locomotive Horns—a name that strongly implies they've had just about enough of your bitching—and it requires four blasts 15 to 20 seconds before every crossing.

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Two short whistles mean that the engineer acknowledges that he or she heard or saw a signal that affects movement. Three short ones mean that the engineer intends to make a reverse movement. Two long, one short and one long mean trains are approaching a highway or street crossing. And the list goes on.

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11.Six time short horns If you hear six time short horns, you have to understand that the train is stuck in a dangerous situation.

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One short blast tells other boaters, “I intend to pass you on my left (port) side.” Two short blasts tell other boaters, “I intend to pass you on my right (starboard) side.” Three short blasts tell other boaters, “I am operating astern propulsion.” For some vessels, this tells other boaters, “I am backing up.”

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Have you ever thought why trains blow their horns so often and so loudly? The truth is that they have to. And the main reason for that is safety. Locomotive engineers are required to honk every now and then, which is written down in the regulations called the Final Rule on the Use of Locomotive Horns.

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Train Horn Requirements Under the Train Horn Rule (49 CFR Part 222, issued on August 17, 2006), locomotive engineers must begin to sound train horns at least 15 seconds, and no more than 20 seconds, in advance of all public grade crossings.

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One short whistle means STOP. One long whistle (three to 10 seconds) means the train is approaching a station. Two short whistles mean that the engineer acknowledges that he or she heard or saw a signal that affects movement. Three short ones mean that the engineer intends to make a reverse movement.

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UK diesel and electric locomotives are usually fitted with two-tone horns, sounded sequentially to distinguish them from the horns used on road vehicles, the tones being described as either 'high' or 'low'. In the past, both tones were routinely used.

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The reason that trains honk their horns so much at night is because it's dark and the trains aren't so easy to see. Even though the lights are on, we sometimes can't see them coming, especially around the many blind curves near or ahead of the train station.

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What is the significance of a train engine sounding a Morse code Q as they approach a crossing? According to railsafetraining dot com, the signal dates back to when the Queen of England traveled by ship. The Captain would blow Morse for “Q” to tell other ships to move aside for Her Majesty.

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Locomotive horns are required to sound for 15-20 seconds before entering all public grade crossings, but not more than one-quarter mile in advance. The required pattern for blowing the horn is two long, one short and one long sounding horn, repeated as necessary until the locomotive clears the crossing.

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