Is it permitted to sound the horn to warn another driver that a traffic light has changed from red to green?
Controls
The use of the horn is allowed only in specific situations, such as avoiding an accident or during overtaking on interurban roads, and not to signal a change of traffic light, as this contributes to urban noise and can distract other drivers.
Explanation
The use of the **horn** in vehicles is regulated and only allowed in specific situations. According to the rules, it can be used to:
- **Avoid a possible accident**.
- Warn another driver on **roads outside urban areas** when overtaking.
- Alert other vehicles of the need to pass or park due to a **priority service**, such as taking a seriously injured person to the hospital.
Therefore, it is not permitted to use the horn to alert another driver that a traffic light has changed from red to green, as this situation is not among the authorized cases.
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