When is it appropriate to use your horn while driving?

Using your horn to alert other drivers of your presence in an emergency is an important safety measure. In situations where visibility is limited, or if another vehicle is encroaching into your path, using the horn can help prevent accidents by grabbing the attention of other road users. It serves as a warning signal to alert others to your presence or to indicate that you have a right to space on the road.

Using the horn for other purposes, such as greeting a friend or expressing frustration in heavy traffic, does not contribute to safety and can induce confusion or lead to road rage among other drivers. Additionally, using the horn while making a turn is not a general practice and does not effectively signal the intent to turn as other indicators, such as turn signals, should be used for that purpose. Thus, the appropriate and recommended use of the horn is strictly in emergency situations to alert and prevent potential collisions.