Which statement best describes the safest way to merge onto a highway from an on-ramp?

• A. Enter without signaling to avoid interrupting traffic.
• B. Merge as soon as you reach the ramp without checking mirrors.
• C. Speed through the ramp to blend with traffic.
• D. Accelerate to match traffic speed, check mirrors and blind spots, signal, and merge smoothly.

Answer: (D)

Safe highway merging relies on speed matching, scanning, signaling, and a smooth blend into traffic. Accelerate to the highway’s speed to create a safe gap and avoid forcing your way in. Then check your mirrors and look over your shoulder to verify there’s no one in your blind spot or in the adjacent lane. Signal your intent so other drivers know you’re entering. Finally, merge into the gap smoothly and maintain a steady speed in your lane.

Skipping signaling, neglecting mirror and blind-spot checks, or rushing through the ramp without ensuring a safe gap increases the risk of a collision. The combination of matching speed, careful observation, clear signaling, and a controlled merge is the safest approach.