When is a horn permitted to be used in Italy?

The use of a horn in Italy is primarily permitted to warn others of potential danger. This regulation aligns with general traffic safety practices, where the horn serves as an important safety tool to alert other drivers, pedestrians, or cyclists about imminent hazards, such as when a vehicle is approaching a narrow street, an unexpected obstacle, or when a driver needs to make their presence known in a potentially dangerous situation.

Using the horn merely to express emotions, such as happiness, or to greet individuals is not considered appropriate and does not contribute to road safety. Additionally, the horn should not be used as a response to traffic signals changing, as vehicular actions should follow the signals rather than relying on horn communication for such situations. This emphasis on safety through proper horn use is a crucial aspect of responsible driving behavior in Italy and other places worldwide.