Which sequence is most correct when preparing to change lanes?

Which sequence is most correct when preparing to change lanes?

• A. Check mirrors, then signal, then blind spots.
• B. Signal, check mirrors and blind spots, then merge when safe.
• C. Merge first, then signal afterward.
• D. Check blind spots only, ignoring mirrors and signals.

Answer: (B)

When preparing to change lanes, the move that minimizes surprises is to signal first, then verify the situation with mirrors and a shoulder check, and only merge when you have a clear, safe gap. Signaling early tells other drivers your intention so they can adjust their speed or position in advance. After signaling, you should check your mirrors to gauge traffic behind and in the adjacent lane, and perform a quick look over your shoulder to inspect the blind spots the mirrors can’t show. This combination confirms there’s no vehicle in the lane you’re entering and that there’s enough space to merge. Once you see a safe gap, merge smoothly. Jumping ahead to merge or neglecting mirrors and blind spots increases the risk of a close call or collision, especially with fast-moving traffic in your blind spots.

When preparing to change lanes, the move that minimizes surprises is to signal first, then verify the situation with mirrors and a shoulder check, and only merge when you have a clear, safe gap. Signaling early tells other drivers your intention so they can adjust their speed or position in advance. After signaling, you should check your mirrors to gauge traffic behind and in the adjacent lane, and perform a quick look over your shoulder to inspect the blind spots the mirrors can’t show. This combination confirms there’s no vehicle in the lane you’re entering and that there’s enough space to merge. Once you see a safe gap, merge smoothly. Jumping ahead to merge or neglecting mirrors and blind spots increases the risk of a close call or collision, especially with fast-moving traffic in your blind spots.