What do a series of short and frequent blows of a whistle made by a traffic officer mean?
Signage: Traffic officers
Explanation
Traffic **officers** use sound signals with a **whistle** to give instructions to drivers. These signals are mandatory and must always be obeyed.
- When an officer makes **several short and repeated blows with the whistle**, it means that drivers must **stop the vehicle**.
- It is important to differentiate this signal from a **long blow of the whistle**, which indicates that you should **resume driving** and continue.
Therefore, if you hear a series of short and frequent blows with a whistle, you must stop your vehicle immediately.
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