When must a driver use their turn signals?

Using turn signals is crucial for safe driving as it communicates your intentions to other road users. A driver must use their turn signals to indicate any movement of the vehicle, which includes not only changing lanes and turning left or right, but also actions like merging into traffic, exiting from a roundabout, or pulling over.

This practice is in place to enhance safety and prevent accidents by ensuring that other drivers and pedestrians are aware of your intended actions on the road. It's essential for maintaining a predictable driving environment, as signaling allows others to react accordingly. By signaling all movements, a driver helps create a safer and more coordinated traffic flow.

In contrast, other choices might limit the circumstances under which a driver should signal, which does not align with the comprehensive drive safety rules in Belgium.