When should you use your turn signals?

Using turn signals is an essential part of safe driving and communication on the road. You should use your turn signals whenever you are changing lanes or turning to inform other drivers and pedestrians of your intentions. This practice helps to create a safer driving environment by reducing the risk of accidents, as it allows others to anticipate your next moves.

While other options might indicate scenarios where using signals could seem relevant, they are not comprehensive or accurate. For instance, signaling only at nighttime ignores the fact that daytime driving also requires signaling for turns and lane changes. Limiting the use of turn signals to when another vehicle is present does not encompass all driving scenarios; you should signal whenever you are making a maneuver, regardless of the proximity of other vehicles. Additionally, while it's helpful to signal when driving through a roundabout, it does not cover the broader requirement to signal during all lane changes or turns. Therefore, the best choice reflects the universal rule of using turn signals for lane changes and turns to enhance road safety.