When is it necessary to use your turn signals when changing lanes?

Using turn signals when changing lanes is essential for communicating your intentions to other drivers. This practice enhances safety on the road by providing a clear indication of your movements, allowing other drivers to react appropriately. By signaling your intention to change lanes, you reduce the risk of accidents caused by sudden lane changes that other drivers may not anticipate.

It's important to signal at all times when changing lanes, regardless of the speed you are traveling or the proximity of other vehicles. This consistency helps establish predictable driving behavior, which is crucial for maintaining safety on the road. Even in situations where you may not see other cars nearby, signaling is still necessary to alert any other road users who may be present or might emerge into your vicinity.

In contrast, the other options suggest conditions for using turn signals that can lead to misunderstandings about safe driving practices. These conditions could encourage drivers to neglect signaling when it is just as critical, creating potential hazards on the road. Therefore, the consistent use of turn signals is a fundamental aspect of driving safely and courteously.