In built-up areas, is it permitted to use acoustic signals (the horn) to warn the driver of the vehicle in front of your intention to overtake?

Question

DentroTest · Accepted Answer

Traffic regulations prohibit the use of acoustic signals (the horn) to warn of overtaking inside built-up areas (urban roads). In this environment, to avoid noise pollution, you are only allowed to warn of the maneuver using optical signals (flashing headlights). The horn in built-up areas is reserved exclusively for avoiding a potential accident or to signal an emergency service if your vehicle is not a priority vehicle. Outside built-up areas, you are allowed to use both the horn and the lights to overtake.

In built-up areas, is it permitted to use acoustic signals (the horn) to warn the driver of the vehicle in front of your intention to overtake?

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