When should you signal before turning or changing lanes?

Signaling at least 100 feet before turning or changing lanes is important because it gives drivers around you enough time to react to your intended actions. This distance ensures that other drivers and pedestrians have adequate notice, promoting safety on the roads. When you signal well in advance of a turn or lane change, it decreases the likelihood of sudden movements or misunderstandings, helping to prevent accidents. This practice is part of maintaining clear communication with others on the road, which is essential for safe driving.

The other options do not align with the best safety practices. Signaling too close to the intersection, such as within 50 feet, may not provide enough time for other drivers to adjust their speed or position. Only signaling when other vehicles are present could lead to situations where pedestrians or cyclists are not informed of your intentions. Finally, signaling immediately before maneuvering can be too late for other road users to respond appropriately.