What is a safe procedure for changing lanes on a busy highway?

• A. Check mirrors and blind spots, signal early, and perform a smooth lane change when the gap is clear.
• B. Signal at the last moment to surprise other drivers.
• C. Change lanes without looking or signaling.
• D. Wait for the lane to fill with traffic before attempting.

Answer: (D)

Changing lanes safely on a busy highway centers on awareness and clear communication. Start by quickly scanning your mirrors and glancing over your shoulder to check the lane you want to enter for any vehicles in the blind spot. If the lane is clear, signal early so other drivers know your intention well before you move. Then steer smoothly into the adjacent lane, matching your speed to the traffic in that lane and maintaining a steady, controlled path so you don’t surprise anyone. Once you’re fully in the new lane, cancel the signal and continue with normal driving.

This approach matters because late or absent signaling, or moving without checking blind spots, can lead to sudden, dangerous situations for drivers around you. Waiting for a lane to fill with traffic before changing lanes isn’t safe either, as it removes your control over the maneuver and can force you into a cramped or risky gap.