When is it appropriate to use your horn while driving?

Using your horn to alert another driver of your presence is an important safety measure. It serves as a warning system that can prevent accidents and collisions, especially in situations where visibility is limited or when another driver may not see you. For instance, using your horn when approaching a blind intersection or when a driver is drifting into your lane helps ensure that they are aware of your vehicle's presence, thus promoting safer driving conditions for everyone on the road.

Other options, such as expressing frustration or encouraging slow drivers to go faster, can lead to road rage or dangerous driving behaviors. Greet friends with your horn may distract other drivers and doesn't serve a safety purpose. In general, the horn should be reserved for situations where it can genuinely enhance safety, rather than used for personal expressions or casual interactions.