When should you signal your intention to turn?

Signaling your intention to turn at least 100 feet before making the turn is essential for ensuring the safety of all road users. This practice gives other drivers and pedestrians adequate notice of your intentions, allowing them to react appropriately. By signaling well in advance, you help create a smoother flow of traffic and reduce the likelihood of accidents. It is a fundamental rule of defensive driving, emphasizing the importance of communication on the road.

The other options fall short of providing the necessary advance notice. Signaling only when other cars are nearby can create confusion and may not allow enough time for other drivers to respond. Signaling just as you are about to turn does not give any time for others to react, which could lead to dangerous situations. On the other hand, the idea that signaling is not necessary contradicts the rules of the road that emphasize the importance of indicating your intentions to enhance overall safety.