Final answer:
When entering a highway from an entrance ramp, vehicles must yield the right-of-way to the traffic already on the highway before merging into the appropriate lane.
Step-by-step explanation:
When vehicles are entering a highway from an entrance ramp, it is important to follow the rule that they must yield the right-of-way to the traffic that is already present and moving on the highway before they can safely merge into the appropriate lane.
When entering a highway from an entrance ramp, vehicles must yield the right-of-way to the traffic already on the highway before merging into the appropriate lane. This rule is in place to ensure a smooth and safe flow of traffic. By yielding to oncoming traffic, drivers can avoid collisions and allow other vehicles to maintain their speed on the highway.