If you observe a traffic officer moving their extended arm up and down alternately, what must you do?

Question

DentroTest · Accepted Answer

The correct answer is to reduce speed. This signal requires drivers approaching the officer from the side corresponding to the moving arm to slow down. It is important to distinguish this signal from the vertically raised arm (which requires coming to a complete stop). The option to 'brake immediately' is incorrect as it implies dangerous abruptness, and 'stop completely' is not what this specific signal commands.

If you observe a traffic officer moving their extended arm up and down alternately, what must you do?

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