What is the honking rule?

Some drivers use their horns to communicate effectively and alert other drivers, while plenty of others use horns to vent their traffic frustrations and perpetuate road rage. As a general rule, you should only use your vehicle's horn when absolutely necessary to insure safe driving.



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Truckers honk twice to indicate that they are passing. This is a common signal used by truckers to let other drivers kno.

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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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A quick tap of the horn may express a polite “excuse me,” whereas a long, drawn-out honk might urge a fellow driver to quickly change what they are doing.

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