What is the correct sequence to change lanes safely?

• A. Check your mirrors and blind spot, activate the turn signal, then re-check the mirrors and blind spot.
• B. Accelerate quickly to pass.
• C. Signal after merging.
• D. Look only in the side mirror.

Answer: (A)

Safe lane changes begin with a thorough scan of the road ahead and to the sides: check your mirrors and blind spots to see who is near and whether there’s any vehicle in the path you want to take. Then communicate your intent by turning on the signal well before you move. After signaling, do a final re-check of your mirrors and blind spots to confirm the lane is still clear, because traffic can change in the moment between the initial check and the actual lane change. This sequence helps you avoid surprises and gives others time to respond.

Accelerating quickly to pass is dangerous because it reduces the space you have to maneuver and can surprise drivers. Signaling after merging doesn’t give others a heads-up before you move, increasing risk. Looking only in the side mirror misses vehicles in the blind spots, which can lead to a collision.