When must you signal before turning or changing lanes?

When must you signal before turning or changing lanes?

• A. After you begin the maneuver.
• B. Before you start the maneuver; use signals well in advance to inform others.
• C. Only if other vehicles are nearby.
• D. After you complete the maneuver.

Answer: (B)

Signaling before you start the maneuver is crucial because it communicates your intent to other road users, giving them time to react and adjust their speed or position. The best practice is to activate your turn signal before you begin and keep it on long enough to cover the entire move, so others know what you plan to do. This early warning helps prevent surprises and reduces the risk of collisions. Waiting to signal after you begin, or only signaling if you think others are nearby, removes that warning and increases danger. Signaling after you’ve completed offers no advance notice at all. So, you should signal before you start the maneuver and well in advance to inform others.

Signaling before you start the maneuver is crucial because it communicates your intent to other road users, giving them time to react and adjust their speed or position. The best practice is to activate your turn signal before you begin and keep it on long enough to cover the entire move, so others know what you plan to do. This early warning helps prevent surprises and reduces the risk of collisions. Waiting to signal after you begin, or only signaling if you think others are nearby, removes that warning and increases danger. Signaling after you’ve completed offers no advance notice at all. So, you should signal before you start the maneuver and well in advance to inform others.