When must you use your turn signals?

Using turn signals is essential for safe driving because they communicate your intentions to other road users. The correct choice indicates that you must use your turn signals when changing lanes, turning, or merging. This requirement is critical for maintaining road safety and ensuring that other drivers and pedestrians are aware of your actions.

When changing lanes, signaling lets drivers in adjacent lanes know your intention to move over, which helps them adjust their position if necessary. Similarly, when turning at intersections or merging onto highways, signaling provides vital information that can prevent accidents and facilitate smoother traffic flow. These actions demonstrate an understanding of the right-of-way and help maintain predictability on the road.

The other options do not encompass the full scope of safe driving practices related to signaling. For instance, restricting the use of turn signals only to certain conditions, like night driving or specific actions such as alerting pedestrians, overlooks the importance of signaling in everyday driving scenarios. By using turn signals consistently when required, drivers contribute to a safer environment for everyone on the road.