In what situation are you allowed to use your horn?

The use of a vehicle's horn is intended primarily as a safety feature to alert others of potential danger or to signal an urgent situation. When another road user poses imminent danger, the horn serves as a critical tool to draw attention and prevent accidents. This use is aligned with established driving regulations, which emphasize the importance of using the horn responsibly and only in necessary circumstances to ensure safety on the road.

In contrast, using the horn at any time for warning or merely to express frustration does not adhere to the spirit of responsible driving practices and can lead to unnecessary distractions or road rage incidents. Similarly, while alerting other drivers of your presence can at times be necessary, it should not be the primary reason to use the horn unless there is a clear and present danger that needs to be addressed. Thus, the correct scenario for using the horn is indeed when there's a direct threat to safety that requires immediate communication to prevent harm.