Which of the following statements is true regarding lane changes?

You must always signal when changing lanes because signaling is a key part of safe driving practices. When you use your turn signal, you communicate your intentions to other drivers and pedestrians, which helps to prevent accidents and misunderstandings on the road. Signaling alerts others that you plan to move into a different lane, allowing them to adjust their speed or position accordingly. This is not only a matter of courtesy but also a legal requirement in many jurisdictions, including Virginia. Proper signaling helps maintain a smooth flow of traffic and enhances overall road safety.

The other statements do not adhere to safe driving principles. Changing lanes should be done cautiously and only when it is safe, meaning signals must be used, and proper checks must be made.