What is the proper sequence for a safe lane change?

• A. Signal, check mirrors, check blind spots, and change lanes when safe.
• B. Check mirrors, signal, check blind spots, and change lanes when safe.
• C. Check blind spots, check mirrors, signal, and change lanes.
• D. Change lanes first, then signal.

Answer: (B)

The main idea is to approach a lane change by first assessing your surroundings, then signaling, then confirming there’s a clear path, and only then moving. You start by checking your mirrors to get a full view of traffic behind and to the sides. This helps you judge how much space you have and whether a lane change is practical. After you’ve gauged the situation, you signal your intention so other drivers know you’re planning to move. With the signal on, perform a quick shoulder or blind-spot check to be sure no vehicle is in the adjacent lane’s blind spot. If the lane is clear and there’s enough space, you can change lanes smoothly while maintaining your speed and safe following distance. If it isn’t safe, stay put and reassess rather than forcing a move.

This sequence helps avoid signaling too early, ensures you’ve actually got room to maneuver, and protects against unseen vehicles in the blind spots.