What is the purpose of using turn signals?

The purpose of using turn signals is to indicate where you are going to traffic. Turn signals provide crucial information to other road users about your intentions, allowing them to anticipate your movements and react accordingly. By signaling your turns or lane changes, you enhance safety on the road by reducing the risk of misunderstandings between drivers, improving the flow of traffic, and helping to prevent accidents.

The other options do not serve the intended function of turn signals. Annoying other drivers or signaling the police are inappropriate and unrelated uses. Additionally, using turn signals to increase speed would contradict their primary purpose of promoting safety and communication on the road. Understanding the importance of turn signals is vital for any driver, especially those with a commercial driver's license, as it reflects professionalism and responsibility.