When is it required to use your turn signal?

Using a turn signal is essential for communicating your intentions to other drivers and pedestrians. It is required when changing lanes or making a turn because it provides clear notice to those around you about your next move. This helps to prevent accidents and ensures smoother traffic flow by allowing other drivers to react appropriately based on your signal. Using turn signals is a fundamental aspect of safe driving, promoting awareness and cooperation on the road.

Other situations mentioned in the options do not encompass all the scenarios where signaling is critical, as turn signals are not limited to just highway entries, residential areas, or speed-related situations.