Why is it important to use turn signals?

Using turn signals is crucial because they serve as a communication tool to inform other drivers of your intended movements. When a driver uses a turn signal, it allows other motorists, cyclists, and pedestrians to anticipate what the driver plans to do next, such as turning or changing lanes. This communication helps to enhance road safety and reduce the likelihood of accidents, as it provides time for others to react appropriately to the vehicle's actions. Clear communication on the road is essential for maintaining an orderly flow of traffic and ensuring everyone's safety.

The other options do not accurately reflect the primary purpose of turn signals. Adjusting vehicle speed, activating automatic brakes in emergencies, or indicating a vehicle's color are not functions related to the use of turn signals and do not contribute to traffic safety or communication among drivers.