What must a driver do before merging onto an expressway or freeway?

Answer: A — Move into the acceleration lane

Before merging onto an expressway or freeway, it is important for a driver to move into the acceleration lane. This lane is designed to allow drivers to increase their speed to match that of the traffic already on the expressway, facilitating a safer and smoother merge. The acceleration lane is crucial because it provides the necessary space for drivers to gain speed before entering higher-speed traffic, which reduces the risk of collisions. By merging at an appropriate speed, drivers enhance their ability to enter the flow of traffic without causing disruptions or endangering themselves and other motorists. Completing the action of moving into the acceleration lane while properly adjusting speed helps ensure safer merging practices and contributes to overall highway safety. Other actions, such as coming to a complete stop at the entrance, are not advisable as they can cause sudden slowdowns and accidents. Utilizing high beam headlights while merging is also not appropriate, as it can blind other drivers. Signaling is important for communication, but the emphasis is primarily on positioning in the acceleration lane to achieve an effective merge.