What should a driver do when merging onto a highway?

Answer: A — Speed up to match the flow of traffic

When merging onto a highway, it is essential for a driver to speed up to match the flow of traffic. This action is crucial because highways have a higher speed limit, and maintaining a similar speed to that of vehicles already on the highway reduces the risk of collisions and congestion. By accelerating to the appropriate speed, the driver can seamlessly integrate into the traffic, allowing for a smoother merge and ensuring safety for themselves and other road users. Matching the flow of traffic helps to prevent situations where merging vehicles might cause abrupt changes in speed, which can be dangerous for both the driver merging onto the highway and the drivers already traveling on it. This practice promotes a safer driving environment, reduces the chances of rear-end collisions, and enhances overall traffic flow. In contrast, merging without checking mirrors poses a significant risk, as it prevents the driver from being aware of any vehicles in their blind spots. Slowing down unnecessarily can disrupt the flow of traffic, making merging more difficult and dangerous. Stopping before merging is not advisable, as it can create sudden obstacles for other vehicles, leading to potential accidents. Therefore, accelerating to match the speed of traffic is the most effective and safest approach to merging onto a highway.