How far in advance should a driver signal before making a left or right turn?

A driver should signal at least 30 meters before making a left or right turn. This distance provides ample time for other drivers and pedestrians to notice the intended maneuver, allowing them to react safely and appropriately. Signaling ahead of time is crucial for maintaining road safety, as it communicates your intentions clearly to others on the roadway, thus helping to prevent accidents.

While signaling 10 meters, 20 meters, or just a few seconds before turning may seem sufficient, these shorter distances may not allow enough reaction time for other road users, especially in busy or high-speed environments. Therefore, a 30-meter advance signal is the recommended practice, aligning with safe driving protocols and enhancing overall traffic flow.