How far should you signal before making a turn?

Signaling before making a turn is crucial for ensuring safety and alerting other drivers and pedestrians of your intentions. The correct guideline is to signal at least 100 feet before making a turn. This distance provides sufficient time for drivers behind you to recognize your intention to turn. It also ensures that any pedestrians or cyclists in the vicinity can react accordingly.

Signaling too late may lead to confusion and could increase the risk of an accident, as other drivers might not be prepared for your change in direction. By adhering to this 100-foot rule, you contribute to a safer driving environment. The other options suggest shorter distances that may not provide adequate warning, while signaling only when other cars are nearby disregards the importance of proactive communication on the road.