Can traffic officers make other signals besides those they make with their arms?
Signage: Traffic officers
Explanation
Traffic **officers** have the ability to give orders in different ways to ensure compliance with traffic regulations. They not only use **arm signals**, but they can also employ **acoustic signals** to communicate with drivers.
- **Acoustic signals**: Officers can use a **whistle** to give audible indications. These sound signals are an effective way to attract the attention of drivers and convey clear orders, especially in situations where visual signals may not be sufficient.
- In addition to acoustic signals, officers can also give instructions from a vehicle, using flashing lights and sounds to direct traffic and ensure road safety.
Therefore, it is correct to state that traffic officers can give orders using acoustic signals, in addition to arm signals.
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