If the driver of the vehicle ahead keeps the right indicator on but at the same time signals with the arm an intention to turn left, which of the two signals must you heed?

Question

DentroTest · Accepted Answer

As a general rule, warnings of maneuvers are given with the vehicle's light signaling or, failing that, with the arm (Article 108(2) of the General Traffic Regulations). Those given with the arm are valid if they are perceptible to the other users and made in accordance with Article 109, and they override any other optical indication that contradicts them. Therefore, if the driver ahead has the right indicator on but indicates a left turn with the arm, the warning given with the arm must be heeded. It is not true that both signals cancel each other out, or that the indicator prevails over the arm.

If the driver of the vehicle ahead keeps the right indicator on but at the same time signals with the arm an intention to turn left, which of the two signals must you heed?

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