What should you do when merging onto a highway?

When merging onto a highway, it is crucial to match the speed of traffic and signal to ensure a smooth and safe integration into the flow of vehicles. By aligning your speed with that of the traffic already on the highway, you reduce the chances of sudden braking or acceleration, which can create hazards for both yourself and other drivers. Signaling is equally important, as it communicates your intention to merge, allowing other drivers to be aware of your movements and make adjustments as needed to accommodate your entry.

The other options present various approaches that can lead to potential issues. For instance, significantly increasing your speed can create an unsafe situation and could lead to loss of control. Staying in your lane and waiting for a gap might cause delays or impede the flow of traffic, especially if you're in a situation where merging is necessary for safety. Merging only when a vehicle yields to you might not be viable; drivers may not always yield, and waiting for someone to do so could lead to dangerous situations or create backups. Matching speed and signaling promotes safety and efficiency during the merging process.