When entering a highway from an entrance ramp, you should generally:

1. Enter above the speed of traffic to get ahead.
2. Enter slowly to avoid other vehicles.
3. Stop first, then slowly enter traffic.
4. Accelerate to the speed of traffic. ✓

Answer: D. Accelerate to the speed of traffic.

When you come down an entrance ramp, you should accelerate to the speed of traffic so you merge smoothly with the vehicles already on the highway.

Why this is the answer

The handbook treats highways as roads built for higher-speed travel and says that if you cannot or do not want to drive at or above the minimum speed limit, you should not use the highway at all. That sets the expectation that you join the flow at the speed the highway is running, not far below it. Building your speed on the ramp lets you fit into a gap instead of forcing highway traffic to react to a slow-moving vehicle.

Why the other answers are wrong

• A. Enter above the speed of traffic to get ahead. — Nothing in the handbook tells you to beat the traffic by entering faster than it is moving; you are aiming to match the flow, not pass it.
• B. Enter slowly to avoid other vehicles. — Entering slowly puts you well under the speed of the traffic already on the highway, which works against the handbook's point that highway users drive at or above the minimum speed limit.
• C. Stop first, then slowly enter traffic. — Stopping at the end of an entrance ramp is not described anywhere in the handbook as the way to enter a highway, and it leaves you trying to join fast traffic from a standstill.

Remember it

Think of the ramp as your running start: use it to arrive at the highway already moving with the traffic.