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BDifficulty 2/5

In road safety, what is meant by another road user’s uncertainty zone?

Correct answer

The space around another user into which they may move unexpectedly.

It is the space around pedestrians, vehicles or animals into which they may move unexpectedly. It can exist even when the user is visible; it is not simply a blind spot or an area ignored by a distracted driver. Observation, anticipation and leaving margins help response without guaranteeing prediction of every movement.

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  • Only the mirrors’ blind spot.

  • An area where it is guaranteed that nobody will move.

  • The space around another user into which they may move unexpectedly.

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