You should signal when you are going to:

• A. Change lanes
• B. Make a turn
• C. Pull away from a parking space which is parallel to the curb
• D. All of the above

Answer: (D)

Signaling communicates your intended path to other drivers and pedestrians. Anytime your vehicle will move into a different position on the road, you should use a turn signal so others can anticipate what you’re about to do.

For changing lanes, a signal tells the driver beside and behind you that you’re merging, giving them time to adjust. For a turn, signaling alerts cross traffic and pedestrians that you’re about to leave your current path and enter a new one. When pulling away from a curbside parking space into moving traffic, a signal warns oncoming traffic and pedestrians that you’re about to come into their path.

Because signaling is important in all of these scenarios, the best answer is that you should signal for all of them. Skipping a signal in any of these situations increases the chance of surprising other road users and raises the risk of a collision. As a practical cue, signal before you start the maneuver and keep the signal on until you’ve completed the action and are safely in your new lane or position.